2026 American Off-Road Racing Championship Rulebook
The American Off-Road Racing Championship (“AORC”) General Rules are the exclusive property of AORC, jointly administered by Unlimited Off-Road Racing and Best in the Desert Racing Association. Any publication, distribution, reproduction, or use of these Rules by other organizations or individuals is prohibited without AORC’s prior written consent.
These Rules set forth the regulations, policies, specifications, and minimum requirements governing the conduct of, and participation in, all AORC-sanctioned events. They are intended to enable professional administration and establish minimum standards for safety, fairness, and competition.
Participation in AORC events is voluntary. By entering, competitors, team members, officials, and other participants agree to be bound by and comply with all applicable AORC rules and directives. It is each participant’s responsibility to read, understand, and comply with the Rules; failure to be familiar with the Rules will not excuse non-compliance.
AORC rules are organized from broad to specific:
- General Regulations: Apply to all persons and activities at AORC-sanctioned events.
- Technical Regulations: Published separately; govern equipment, construction, safety systems, and technical procedures by broad vehicle category (e.g., Car/Truck, UTV, Motorcycle/Quad, Youth). Note: These were previously called “Competition Regulations” by Best in the Desert.
- Class Regulations: Published separately; govern class-specific eligibility and configuration requirements for the class a competitor elects to enter.
- Event Supplementary Regulations (“SRs”) & Official Bulletins: Event-specific instructions and season updates/clarifications issued by AORC. Once published, SRs and Bulletins carry full authority and must be observed. Note: If a conflict arises, SRs/Bulletins may supersede the General, Technical, and/or Class requirements. Where safety is implicated, the more restrictive requirement applies.
Rule Hierarchy & Precedence:
These General Rules apply to all AORC-sanctioned activities. In the event of any conflict among AORC regulations, the following order of precedence governs for the affected Event:
- Event Supplementary Regulations and Official Bulletins (most specific)
- General Regulations
- Technical Regulations / Competition Regulations
- Class Rulebooks
2026 AORC General Regulations:
Introduction
The American Off-Road Racing Championship (“AORC”) General Rules are the exclusive property of AORC, jointly administered by Unlimited Off-Road Racing and Best in the Desert Racing Association. Any publication, distribution, reproduction, or use of these Rules by other organizations or individuals is prohibited without AORC’s prior written consent.
These Rules set forth the regulations, policies, specifications, and minimum requirements governing the conduct of, and participation in, all AORC-sanctioned events. They are intended to enable professional administration and establish minimum standards for safety, fairness, and competition.
Participation in AORC events is voluntary. By entering, competitors, team members, officials, and other participants agree to be bound by and comply with all applicable AORC rules and directives. It is each participant’s responsibility to read, understand, and comply with the Rules; failure to be familiar with the Rules will not excuse non-compliance. AORC rules are organized from broad to specific:
- General Rules (this document):
- Apply to all persons and activities at AORC-sanctioned events.
- Technical Rules:
- Published separately; govern equipment, construction, safety systems, and technical procedures by broad vehicle category (e.g., Car/Truck, UTV, Motorcycle/Quad, Youth). Note: These were previously called “Competition Regulations” by Best in the Desert.
- Class Rules:
- Published separately; govern class-specific eligibility and configuration requirements for the class a competitor elects to enter.
- Event Supplementary Regulations (“SRs”) & Official Bulletins:
- Event-specific instructions and season updates/clarifications issued by AORC. Once published, SRs and Bulletins carry full authority and must be observed. Note: If a conflict arises, SRs/Bulletins may supersede the General, Technical, and/or Class requirements. Where safety is implicated, the more restrictive requirement applies.
Rule Hierarchy & Precedence
These General Rules apply to all AORC-sanctioned activities. In the event of any conflict among AORC regulations, the following order of precedence governs for the affected Event:
- Event Supplementary Regulations and Official Bulletins (most specific)
- These General Rules
- Technical Rules / Competition Regulations
- Class Rulebooks
Mandatory briefing instructions issued by the Race Director may clarify or modify event-specific procedures and are binding for that Event, provided they do not override established safety requirements unless expressly authorized by AORC. Official Bulletins take force upon publication, prevail only over the specific provisions they expressly modify, and apply for the duration of the Event unless otherwise specified.
AORC reserves the right to interpret, alter, suspend, or update these Rules and to issue additional regulations at any time, with or without notice, in its sole discretion. Revisions and official bulletins take immediate effect upon publication.
No express or implied warranty of safety results from the publication of, or compliance with, these Rules. They are intended solely as a guide for the conduct of the sport. Off-road racing is an inherently dangerous activity that may result in serious injury or death. All participants assume full responsibility for their own safety and for the vehicles and equipment they use.
Liability
All AORC participants acknowledge that operating an off-road vehicle, and particularly doing so in high-speed competition, is inherently dangerous and involves significant risk of property damage, personal injury, or death at all times. Participation is voluntary, and all participants assume full responsibility for all risks associated with their involvement in AORC-sanctioned events, whether those risks are known or unknown, inherent or otherwise. All participants are required to execute the official waiver and release of liability prior to participation, and this waiver is a condition of entry.
The AORC, Unlimited Off-Road Racing, Best in the Desert, its owners, officers, directors, officials, staff, sponsors, affiliates, promoters, landowners, or venue operators assume no responsibility, legal or otherwise, for the design, manufacture, inspection, maintenance, preparation, or performance of any vehicle, equipment, product, venue, land, or facility used in competition. References to manufacturers, products, venues, or specifications in these Rules are intended solely as a guide. No express or implied warranty of safety shall result from publication of, or compliance with, these Rules.
The AORC assumes no responsibility for decisions, actions, or omissions by individuals, promoters, organizations, or manufacturers using these Rules in whole or in part. Compliance with these Rules does not guarantee safety.
Force Majeure: The AORC assumes no responsibility whatsoever for delays, postponements, or cancellations of all or part of any event for reasons including, but not limited to, inclement weather, acts of God, governmental actions, litigation, unsafe or impractical course or event conditions, or other circumstances beyond its reasonable control.
All event participants, officials, and volunteers are not employees of the AORC and are solely responsible for any taxes, premiums, or other charges resulting from prizes, awards, or giveaways earned by participants, officials, volunteers, or staff.
Event Admission & Promoter Authority
All AORC events are private. The AORC reserves the right to refuse admission or continued participation to any applicant, team, competitor, entrant, participant, spectator, or other person, at any time and for any reason, at its sole discretion.
Competitor Responsibility
All participants are solely responsible for their own safety, judgment, and conduct at all times, regardless of any Rules or Regulations contained herein. Participants are expected to exercise sound judgment and the highest level of sportsmanship. The specifications and standards contained in this Rulebook are minimum requirements, not guarantees of safety. Nothing herein prevents participants from adopting higher standards of safety or stricter preparation, provided they do not conflict with the Rules. This Rulebook does not constitute engineering or professional advice on how to design, build, fabricate, install, or use any vehicle, component, or system. Competitors remain solely responsible for the design, construction, and maintenance of their vehicles and equipment.
Compliance with Laws & Officials
All participants must at all times comply with applicable local, state, and federal laws, and with instructions from recognized law enforcement agencies, land management authorities, and race officials. This includes, without limitation, the Bureau of Land Management, state and local police and sheriffs, the AORC Race Director, Safety Director, Medical Director, and other designated officials, staff, or volunteers acting under their authority. Failure to comply may result in penalties, disqualification, or removal from the event.
How to Read This Rulebook (Construction & Interpretation)
“Must” and “shall” denote mandatory requirements; “should” denotes a recommended practice; “may” denotes permission or discretion. Examples are illustrative only, not exhaustive. “Including” means “including without limitation.” Singular includes plural, and vice versa. Headings are for convenience only and do not affect interpretation. The intent of a specific rule governs over a competitor’s contrary interpretation. The Race Director’s on-site interpretation controls, subject to the protest/appeal process established elsewhere in these Rules.
Official Language & Units
The official language of these Rules is English. If translated or summarized, the English version controls. Measurements may be stated in U.S. customary units and/or metric. In case of discrepancy, the AORC’s official measuring devices, conversion, and rounding method govern.
Notices, Publications & Effective Dates
The AORC may issue Official Bulletins, directives, or revisions by any reasonable means including website, email, digital notice board, registration portal, or mandatory briefing. Unless otherwise stated, they are effective upon publication and deemed received when issued to the contact information supplied at entry or posted to the official channel identified in the Event Supplementary Regulations. Failure to open or review a notice does not excuse non-compliance.
Severability & No Waiver
If any provision of these Rules is found invalid or unenforceable, the remaining provisions continue in full force and effect. Failure by the AORC to enforce any provision in a particular instance does not constitute a waiver of future enforcement.
Relationship to Waivers & Releases
Participation requires execution of applicable AORC waivers and releases. These Rules are intended to be read consistently with those documents. If a conflict arises, the executed waiver or release governs the scope of release and assumption-of-risk language. These Rules do not create or enlarge any duty of care owed by AORC beyond that expressed in the waiver.
General Provisions
In any and all cases where competitors registered with a third-party race series (including but not limited to Jeepspeed, TrophyLite, and Ultra4) participate in an AORC Event, the AORC General Rules, the Event Supplementary Regulations (SRs), AORC Technical Regulations, and any AORC Bulletins shall supersede and be the sole binding ruleset governing the Event. AORC may recognize third-party class technical specifications for vehicle eligibility and class placement; however, if any conflict arises between third-party rules and AORC documents, the AORC documents shall control. Entry into any AORC Event constitutes acceptance of this hierarchy and the authority of the AORC Race Director and recommendations of the Technical Directors.. Protests or appeals premised on conflicting third-party rules will be denied as non-applicable.
Definitions and General Information
Terminology
The terminology, definitions, and abbreviations contained herein apply to the AORC General Rules, Class Rulebooks, Supplementary Regulations, entry forms, bulletins, and for general use.
Rule Usage
“Must” and “shall” denote mandatory requirements; “should” denotes a recommended practice; “may” denotes permission or discretion. Examples are illustrative only, not exhaustive. “Including” means “including without limitation.” Singular includes plural, and vice versa.
Organization Terminology:
- AORC: The sanctioning body jointly administered by Unlimited Off-Road Racing and Best in the Desert Racing Association.
- Event: A contest between one or more vehicles competing against the clock and/or directly against each other under AORC sanction.
- Class: A category of vehicles as determined by engine size, seating capacity, age group, suspension type, or other criteria defined in the applicable Class Rulebook. Classes may be combined at the discretion of AORC.
- Entrant: An AORC member whose entry has been accepted for an Event.
- Driver/Rider of Record (DOR): The person listed on the official entry form as the primary operator of a vehicle. The DOR must sign all entry and release forms in person during registration and is responsible for the conduct of their team, pit crew, and all persons associated with their vehicle number.
- Co-Driver/Co-Rider: A person listed on the official entry form as eligible to drive or ride during an Event. Must sign all entry and release forms in person during registration.
- Contestant: Any person listed on an official entry form to compete as a Driver, Rider, or Co-Driver/Co-Rider.
Competition Classes:
- Pro Class Entrants: Eligible for points, trophies, contingencies, and monetary awards.
- Limited Pro Class Entrants: Eligible for points, trophies, contingencies, and monetary awards as specified by AORC.
- Sportsman Class Entrants: Eligible for points, trophies and contingencies. Monetary awards may be offered at AORC’s discretion.
Age Requirements:
- Car/Truck/UTV (Adult Classes): Minimum age for drivers is 14 years old on the date of the Event. Co-driver age is not restricted.
- Motorcycle/Quad: Minimum age for Riders and Co-Riders is 14 years old.
- Youth UTV Classes: Minimum age is 5 years old and maximum age is 12 years old.
- Other Youth Classes: Defined in the Youth Class Rulebook and measured as of the first race day of the season. All age minimums are subject to AORC insurance approval and proof of competency at AORC’s discretion.
Officials:
- Race Director: Chief executive officer of AORC events and head referee with final authority on all determinations, judgments, or penalties.
- Operations Manager: Operations Manager is second in command of race operations and operates the race event in the field. The Operations Manager communicates with the Race Director to ensure that all field situations are being mitigated and appropriately resolved. The Operations Manager will use the Course Marshalls in the field if needed to navigate areas of concern and address situations accordingly.
- Technical Director/Chief Technical Inspector: Directs vehicle inspection before and after Events. Decisions on whether a vehicle is legal is discussed with the Race Director for all final decisions.
- Assistant Technical Director/Inspector: Assists Tech Director and assumes duties in their absence.
- Scoring Director: Responsible for timing and scoring operations.
- Communications Director: Manages official Event communication networks.
- Race Official / Marshal / Captain / Starter: Individuals appointed by the Director or Operations Manager to officiate Event functions, including course marshals, checkpoint captains, paved road crossing captains, pit stop captains, and starters. Officials are encouraged to report competitors for violations within their assigned area to the Race Director for final issuance of any penalties or disqualifications..
Event Terminology:
- Supplementary Regulations (SRs): Regulations defining special or additional rules for a specific Event; carry the highest authority for that Event.
- Impound: A designated restricted-access area for containment of vehicles before and/or after an Event.
- Contingency: Commitments by manufacturers, companies, or individuals to post cash or product awards to eligible Contestants, subject to sponsor requirements. Unless otherwise stated, a Contestant must finish the Event to be eligible.
- Payback/Purse: Prize money or awards distributed to finishing entrants. AORC may publish specific purse structures prior to each Event.
Membership:
- Member: Any individual or entity who has completed registration and been accepted by AORC as a participant, entrant, or license holder. Membership is a condition of entry.
- Covered Individuals: Includes Drivers, Riders, Co-Drivers, Co-Riders, Entrants, Contestants, pit crew, team staff, officials, volunteers, contractors, and any other person issued credentials, wristbands, or authorization to access restricted areas.
- By becoming a Member, each individual agrees to be bound by these Rules, waivers, and directives issued by AORC. Membership may be suspended, revoked, or conditioned at AORC’s sole discretion. Membership does not create ownership, employment, or agency with AORC.
Interpretation of Undefined Terms
Capitalized terms not otherwise defined shall be interpreted according to their plain meaning within the context of these Rules.
Rules Abbreviations
For ease of reference, the following abbreviations may be used in these Rules, Class Rulebooks, Supplementary Regulations, and Official Bulletins:
AGR: General Rules
AEN: Entrants
ADC: Drivers / Co-Drivers and Rider
ATI: Pre-Race Technical Inspection
AEC: On-Course Procedures
APIT: Pits
AIP: Infractions and Penalties
AFN: Race Finish Line Procedures
APTI: Post-Race Technical Inspection
AGD: Disqualification
AGP: Protests
GENERAL RULES
AGR1: Off-road racing is an inherently hazardous sport. No participant may assert any claim against AORC, its owners, promoters, track builders, race operators, officers, agents, vendors, employees, volunteers, or directors for damage to any vehicle, personal injury or death, or monetary loss of any kind. All persons who voluntarily participate in AORC-sanctioned activities waive any such claims.
AGR2: AORC, through the Race Director, Operations Manager, or designated promoter, may conduct any AORC-sanctioned Event.
AGR3: Only the Race Director may penalize, suspend, or disqualify any entrant, crew member, or team representative for violations of these Rules, Supplementary Regulations, Bulletins, official directives, or for unsportsmanlike conduct. Officials appointed by them (e.g., marshals, captains, inspectors) are empowered to enforce the Rules and report any arising penalty concerns within their assigned areas to the Race Director.
AGR4: AORC may issue special rulings, directives, and Supplementary Regulations to address course conditions, weather, safety, or other circumstances. These carry full authority once published by any official channel.
AGR5: AORC assumes no responsibility for delays, postponements, or cancellations caused by inclement weather, unsafe course conditions, acts of God, or other circumstances beyond its control.
AGR6: All officials, including checkpoint captains and course marshals, report to the Race Director, who hold overall responsibility for Event conduct.
AGR7: No person under race jurisdiction shall subject officials to improper language, abuse, threats, intimidation, or other demeaning action.
AGR8: No driver, rider, co-driver, or crew member may participate while impaired by alcohol, drugs, or controlled substances. Violations may result in immediate suspension or disqualification.
AGR9: Entrants must compete in a fair and sportsmanlike manner. Deliberate blocking, reckless contact, or other unsafe conduct may result in penalties or disqualification.
AGR10: The official AORC race control frequency is 151.490 MHz. AORC reserves the right to change frequencies and will make reasonable efforts to notify entrants. All teams must monitor the official frequency during competition unless otherwise directed. Interference with official communications is prohibited except in medical emergencies.
AGR11: Checkpoint Captains are direct representatives of the AORC. They may designate restricted areas around checkpoints, enforce compliance, and penalize violations.
Unauthorized presence in restricted areas may result in penalties up to disqualification.
AGR12: Classes may be combined at the discretion of AORC for purposes of competition or course flow. Entrants will be awarded points in their respective classes regardless of combination.
AGR13: The Race Director has final authority in all matters involving an AORC Event, with full discretion to make determinations, judgments, suspensions, or penalties regarding these Rules.
ENTRANTS
AGE1: Any entrant who fails to fully complete and sign required entry forms and releases shall be disqualified and forfeit any prize money, points, and contingencies from that Event. Entry forms and releases must be signed in person before AORC registration personnel. Identification may be required. No person shall sign a release or entry form on behalf of another individual.
AGE2: The entry application of any person under the age of 18 must include the signature of a parent or legal guardian on the official Minor Waiver and Release form. A new Minor Waiver is required for each Event unless otherwise authorized by AORC.
AGE3: Any entrant who competes in a vehicle in which they are registered as Driver or Co-Driver of Record must sign all official registration documents. Failure to do so may result in vehicle disqualification.
AGE4: All Drivers and Co-Drivers of Record listed on the official entry form must attend the mandatory drivers/riders meeting, or provide a designated team representative approved by AORC. Failure to attend may result in penalties up to and including disqualification or fines. Wristband or armband checks and roll calls may be conducted and are binding.
AGE5: If a Driver of Record change is made after completion of event registration, the entrant will forfeit their original starting position and begin at the rear of their class. At AORC’s discretion, prior points for that Event may also be forfeited.
AGE6: No driver shall permit any person other than a registered Co-Driver in the designated riding position. No one may ride on or in any part of a race vehicle other than normal riding positions.
AGE7: No entrant, crew member, pit personnel, or other individual other than the Race Director, Operations Manager, or designated AORC official may remove, alter, or relocate course markings. Violations may result in disqualification, removal from the area, and refusal of entry to future Events.
AGE8: Pre-running of the official AORC racecourse is prohibited unless expressly authorized in the Supplementary Regulations. Where permitted, official Pre-Fun Runs may be conducted under published guidelines and at the entrant’s own risk. Unsafe or irresponsible conduct during a Pre-Fun Run may result in penalties, disqualification, suspension, and/or fines. Under no circumstances may pre-running or practice be conducted in event-registered race-prepared vehicles on or near the official marked racecourse.
AGE9: Failure to appear before the Race Director when requested may result in reprimand, fines, time penalties, disqualification, suspension, or other disciplinary action. Repeated failure to appear may subject the entrant to suspension for up to one year.
AGE10: All race vehicles must display official AORC identification decals as specified in the Supplementary Regulations. At a minimum, each Car/Truck/UTV must display two AORC decals (one per side). Each Motorcycle/Quad must display one AORC decal. No vehicle may display the logos, decals, or identifiers of another race promoter or series during AORC technical inspection, qualifying, contingency, or competition. Compliance is required for contingency eligibility and race payouts.
Vehicles not in compliance may be refused technical inspection until corrected.
AGE11: Each entrant is responsible for the conduct of their team, pit crew, and all persons associated with their entry.
DRIVERS / CO-DRIVERS and RIDERS
ADC1: Each seat in any race vehicle must be occupied during the entire duration of the Event as long as the vehicle remains in competition. The maximum number of seats allowed in any Class is three (3). Seating must allow all occupants a quick exit and must be approved by the Technical Director.
ADC2: Only entrants listed on the official entry form may drive or co-drive in the vehicle for which they are registered. In the event of an emergency, any registered, wristbanded entrant who has signed all required waivers may substitute, provided an AORC official (Race Director or Operations Manager) is notified immediately.
ADC3: AORC reserves the right to change race vehicle numbers and/or background colors.
ADC4: The Driver/Rider of Record (DOR) must sign all entry forms and releases during the official registration period to be eligible for points. Identification may be required. Special consideration registration may be permitted with advance approval of AORC.
ADC5: Only the DOR will receive season points. The race vehicle number is assigned to the DOR for the entire year. Points remain with the DOR and assigned vehicle number for championship purposes. To become a class champion, the DOR must enter all points-paying Events. Points do not transfer if the DOR changes during the season.
ADC6: The DOR must either start or finish the Event, must be registered to the race vehicle, must have signed all required releases, and must complete at least one official race mile. Failure to comply may result in disqualification unless a special exception is granted by AORC.
ADC7: A DOR may be replaced in a race vehicle for a single Event with advance written approval by AORC. Such exceptions must be granted prior to the start of the Event. Championship points do not transfer to the replacement.
ADC8: The qualifying driver must start the race, must be registered to the race vehicle, and must have signed all required releases. The qualifying driver will be issued a “Qualifying” wristband, which must be worn during both qualifying and the start of the race. Failure to comply will result in forfeiture of starting position and reassignment to the rear of class.
ADC9: Drivers/Riders may change places with Co-Drivers/Co-Riders only at officially designated pit stops. In an emergency, a change may be made on-course with the approval of the Race Director or Operations Manager.
PRE-RACE TECHNICAL INSPECTION
ATI1: It is the responsibility of all entrants, drivers, riders, owners, and sponsors to ensure compliance with AORC Rules and Regulations.
ATI2: AORC reserves the right to limit the number of personnel permitted into inspection or impound areas. Only two (2) team members, including the driver/rider, may accompany a race vehicle in pre- or post-race technical inspection unless otherwise authorized by the Technical Director.
ATI3: AORC reserves the right to seal or impound any and all race vehicles.
ATI4: AORC assumes no responsibility for loss or damage to impounded vehicles or parts but will maintain reasonable security measures.
ATI5: The Technical Director has primary authority to impound any vehicle or vehicle parts. The Race Director may order impound as necessary for safety or competition integrity.
ATI6: No vehicle may be touched or removed from an inspection or impound area without permission from the Technical Director and Race Director. Failure to comply may result in disqualification. Vehicles must be taken directly to inspection or impound when directed.
ATI7: The Technical Director may seize any unsafe or illegal parts, devices, or equipment. Such items become AORC property, will not be returned, and no compensation will be provided.
ATI8: Teams must attend pre-race registration and technical inspection during scheduled hours. Failure to do so may result in a late fee as published annually in the Supplementary Regulations, and late inspection at the discretion of AORC.
ATI9: AORC reserves the right to apply frame identification markers to all vehicles. These markers must remain intact for the life of the vehicle. If a marker must be removed due to repairs, the Driver of Record must notify AORC, document the number, and obtain a replacement before the next Event. Tampering with or altering frame markers is grounds for disqualification.
ATI10: Each vehicle must pass safety inspection before being permitted to race. A designated inspection marker will be applied and must remain on the vehicle through the finish. AORC decals and any required event sponsor decals must be displayed on both sides of the vehicle. Failure to display required decals may result in a time penalty, forfeiture of contingency eligibility, or other penalties at AORC’s discretion.
ATI11: All personal protective equipment (PPE) will be inspected, including but not limited to fire suits, helmets, head and neck restraints, gloves, boots, first-aid kits, extinguishers, seat belts, and nets.
- Cars/Trucks/UTVs: Fire suits, helmets, head and neck restraints, gloves, and other SFI- or FIA-approved gear will be checked.
- Motorcycle, Quad, Youth UTV: Helmets and boots are mandatory; additional PPE may be inspected. All PPE must meet current SFI/FIA certification standards, be within valid certification dates, and be free of damage or excessive wear. The Technical Director may seize any PPE deemed unsafe or non-compliant. Seized items will not be returned.
ATI12: Each vehicle will be issued a stuck stub at pre-race tech, which must remain in the vehicle along with a writing instrument. In the event of a breakdown or withdrawal, the stuck stub must be completed and given to the next checkpoint, paved road crossing, pit stop, or to an AORC official. Entrants are still required to notify AORC by radio (if so equipped) or in person at the next official location. Failure to return a stuck stub may result in penalties up to and including disqualification.
ATI13: At the discretion of the Technical Director, vehicles may be directed to pre-race impound following inspection. Access to pre-race impound is limited to those individuals authorized under ATI2.
ATI14: Prerace tech is for safety only, and passing prerace tech does not imply that a vehicle is legal for the class in which it’s entered. It is the racers responsibility to be legal for the class that they have entered.
ON-COURSE PROCEDURES
AEC1: The Race Director will set the racecourse, overall length, number of laps, allowable race time, pit closing times, and other class timings for each Event.
AEC2: Official time is total elapsed time from the assigned start time to crossing the official finish. Entrants missing staging for their assigned position will start at the rear of their class; if that class has already started, they may be staged at the next available time at the Race Director’s discretion. Timing begins at the assigned start time, not the actual start. Entrants may request a rear start; if approved, they start at the rear of their class and may be ineligible for qualifying as stated in the SRs.
AEC3: Class winners are those with the lowest elapsed time or the most laps within the Event time limit, subject to penalties.
START PROCEDURES AND ENTRY
AEC4: Starting procedures will be announced at the drivers/riders meeting and in the SRs.
AEC5: Driver/Rider of Record must start or finish the Event as specified in the SRs. A Driver of Record may not be listed for more than one vehicle in the same class, or run the same vehicle in more than one class.
AEC6: Wristbands or armbands may be checked at start or finish. Tech inspection stickers may be checked at any checkpoint or pit. Lack of credentials or stickers may result in disqualification.
AEC7: All competitors are to report to the designated staging area on time, with all safety equipment, ready to compete. Failure to do so may result in time penalties, back of class start position assignment, or back of group starting position at the discretion of the staging captain.
AEC8: Start Order
- Qualifying classes: set by qualifying times.
- Draw order: established by random draw; late entries placed in order received.
- Non-qualifying classes: may be set by points standings or random draw per SRs.
- Season opener: start order by random draw per class.
- Declining to qualify: racer starts after qualifiers, in draw order.
AEC9: Official Start occurs when a vehicle receives the green flag/light and crosses the Start Line; at that moment the vehicle’s Official Entry status begins for its designated first start, including qualifying or time trials when used, which are part of the Event. Every vehicle must leave the start line at its designated start time. Only vehicles crossing the finish within the time limit are official finishers.
AEC10: Jumping the start carries a minimum ten-minute penalty and may escalate to disqualification based on severity.
COURSE CONTROLS AND SIGNALS
AEC11: Drivers must operate at a speed appropriate to visibility and conditions and must immediately comply with all flag instructions, official directions, and posted signage. Flag meanings and driver /rider duties:
Green – Course Hot
- Meaning: Racing is underway.
- Driver Duty: Proceed at race speed; maintain awareness for local flags and course workers.
Orange – Caution
- Stationary Orange: Hazard ahead; track partially obstructed.
- Driver Duty: Slow to a safe speed; no passing from the first orange flag until completely clear of the incident area.
- Waving/Active Orange: Major hazard; track may be blocked or workers on foot.
- Driver Duty: Be prepared to stop; no passing; proceed only when safe and directed by officials.
Full-Course Orange (FCO)
- Meaning: Neutralized race control condition across the entire course.
- Driver Duty: Reduce to safe pace speed; no passing; maintain gaps; follow Race Control instructions by radio or at designated control points. Overtakes under FCO may incur penalties.
Red – Stop
- Meaning: Race stopped for safety or operational reasons.
- Driver Duty: Stop safely off the main race line as soon as practical; await instructions from officials. Do not proceed until directed. Time adjustments, if applicable, are handled by Timing & Scoring.
Black – Report to Race Control
- Meaning: Mechanical black or conduct violation.
- Driver Duty: Proceed at safe speed to the next designated control/check area or pits as directed. Failure to comply may result in DQ.
White – Final Lap Indication
- Meaning: One lap remaining.
- Driver Duty: Proceed at race speed. Do not slow or stop.
Checkered – Race Complete
- Meaning: Race distance for your class/vehicle is complete.
- Driver Duty: Finish line procedures as directed; reduce speed after crossing; exit the course via posted egress; follow officials to impound/tech if required.
AEC12: When a red flag is declared, race time is paused for all competitors unless otherwise announced by Race Control. Timing resumes upon restart per Race Director instructions. If a class restart is required, the restart procedure and any class-specific time adjustments will be announced on 151.490 MHz and posted to the official notice board.
AEC13: When in conflict, Race Control and on-site officials supersede flags, which supersede posted signage, which supersede team instruction.
AEC14: The Race Director may adjust the number of laps for any class during the event for safety, weather, incident, time-limit, or operational reasons. Changes will be announced on 151.490 MHz and posted to the official notice board; affected classes and teams are responsible for monitoring and complying with updates.
CHECKPOINTS, ROAD CROSSINGS & SPEED
AEC15: All vehicles must stop at all checkpoints and road crossings. Failure to stop may result in penalties up to disqualification.
AEC16: All vehicles must enter stop checkpoints and road crossings at safe speed. Unsafe racing into or through these areas is prohibited. Speeding through a stop checkpoint or road crossing is grounds for automatic disqualification. Rolling through carries a minimum five-minute penalty. “Safe speed” means a controlled stop without endangering anyone nearby.
AEC17: Passing is prohibited within 300 feet on either side of a paved road crossing or inside a designated pit, except at the direction of an AORC official. Violations may result in disqualification or a minimum five-minute penalty.
SAFETY AND INCIDENT REPORTING
AEC18: Each vehicle must carry either two battery-operated red flashing beacons, two long glow sticks, or two red free-standing reflective devices at least 12x12 inches. Place one device ~200 feet and one ~20 feet behind any disabled vehicle or incident on the same side of the track. Failure to mark a blind/unsafe location may result in penalties.
AEC19: Entrants must report accidents or breakdowns they witness to the next checkpoint, paved road crossing, pit stop, start/finish, or by radio if equipped, providing location, vehicle number, and injuries if any. If required by SRs, entrants must retrieve and deliver a “stuck stub” or equivalent.
AEC20: Vehicles must yield to stopped or disabled vehicles, recovery, medical, and official vehicles; passing recovery or medical vehicles is prohibited unless specifically directed by an official.
COURSE COMPLIANCE
AEC21: The marked course is the official route. Vehicles must follow the marked course. Passing
off-course is only permitted where wide enough and no sensitive areas are impacted. Short coursing is prohibited and may result in penalties or disqualification. Sensitive areas are identified by AORC markings and DQ signs. All vehicles must proceed in the correct race direction. Backward travel may result in disqualification and/or suspension.
AEC22: Virtual Check Points (VCPs) may be used to verify course compliance. Vehicles must pass within 50 feet of each VCP unless otherwise stated in SRs.
SIGNALING, OVERTAKING, AND CONDUCT
AEC23: Each vehicle must be equipped with a forward-facing audible warning device operable from the driver’s seat and an operational RacingTrax tracking unit as specified by AORC; the RacingTrax unit must be powered, mounted, and active at all times while on course unless otherwise stated in the SRs.
AEC24: At night or reduced visibility, headlight flash may be used in addition to the audible warning device to signal intent to overtake; horn or siren use remains primary. RacingTrax notifications, where available, may supplement but do not replace audible or visual signaling duties.
AEC25: When being overtaken, the overtaken vehicle must yield at the first safe opportunity and hold a predictable line; on single-lane sections the target yield window is within approximately one minute or one-half mile once aware of the overtake.
AEC26: The overtaking vehicle is responsible for executing a safe pass and may not force another vehicle off-course; deliberate contact to initiate or complete a pass is prohibited unless the SRs expressly authorize controlled contact in designated zones.
AEC27: Blocking is prohibited; more than one change of line in direct response to an overtaking attempt is considered blocking and is subject to penalty.
AEC28: Excessive dusting, brake-checking, swerving, or other unsportsmanlike tactics to impede a pass are prohibited and subject to penalty.
AEC29: Failure to yield, unsafe passing, blocking, or prohibited contact may result in graduated penalties up to disqualification; repeat or egregious offenses may carry enhanced penalties at the Race Director’s discretion.
AEC30: All drivers, co-drivers, and designated chase personnel are required to be familiar with RacingTrax basic functions and team usage as applicable to their role; AORC may brief procedures in the drivers/riders meeting. Classes identified in the SRs as exempt (including certain Youth categories) are not required to use or be trained on RacingTrax.
AIRCRAFT AND DRONES
AEC31: “Aircraft” includes helicopters, fixed-wing, ultralights, and UAS/drones. All aircraft (including drones) must be registered with AORC no later than 7 days prior to operating at any AORC Event. Pilot(s) must attend the mandatory aerial safety briefing.
Helicopters (only) may provide live course spotting limited to safety/traffic advisories, such as:
- Upcoming traffic and relative proximity of overtaking or being-overtaken vehicles;
- Accidents/incidents, stopped vehicles, emergency vehicles, wildlife, closures, neutralizations;
- Publicly announced status changes (e.g.,flags/speed reductions) already issued by Race Control. Spotting must not include pace targets, split times, or tactical instructions.
Prohibited Aerial Support (non-exhaustive): Active course notes/navigation (e.g., “crest into right 3,” line choice, cut lines, waypoints), competitor coaching, or pace/strategy calls (fuel, tire, pit delta); Transporting drivers/co-drivers/crew to or from a vehicle or delivering parts/tools/fluids; Landing on or near the racecourse (except when expressly authorized by AORC) or flying directly over race vehicles; Operating without registration/briefing or outside published flight corridors/altitudes.
All operations must comply with FAA regulations and AORC-published event flight corridors. AORC may impose time-of-day, weather, TFR, and altitude restrictions at any time for safety. Medical and retrieval aircraft operating under AORC direction are exempt from the spotting-only limitation.
Media aircraft or drones require advance approval, credentials, and adherence to the AORC Media & Drone Rules and any mandatory briefing stated in the SRs. Separate/additional rules apply to helicopters and drones and must be followed.
Violations may result in time penalties, Disqualification, removal of flight privileges, credential revocation, and/or denial of access to future AORC events. Media personnel operating drones in violation are subject to removal and loss of credentials.
RETIREMENT, FINISH AND PODIUM
AEC32: Any entrant who retires must notify AORC by radio on the race frequency or in person at a checkpoint, road crossing, pit stop, or start/finish. If “stuck stub” is used, it must be turned in when retiring.
AEC33: No vehicle shall be towed, pushed, pulled, or transported on the course by a non-race-entered vehicle while the Event is live, except by official retrieval crews. A race-entered or official vehicle may push/pull/tow a disabled vehicle to the nearest pit or checkpoint but not through. Repairs must enable departure under its own power. No towing/pushing within 200 yards of the finish. Only occupants at the time of breakdown may push it across. AORC officials may render reasonable assistance.
AEC34: Grand Prix type finish, if applicable, will be defined in the SRs. If used, the race ends when the Overall Leader takes the checkered flag after required laps. All other vehicles must then take the checkered flag and meet minimum laps to be finishers.
AEC35: Podium finish is first, second, and third place, unless otherwise specified in the SRs.
PITS & ACCESS ROADS
AEC36: Hot pit speed is 25 mph at all times the course is hot or vehicles are present, including pit lane, fueling boxes, and any coned/taped corridors adjacent to the lane unless otherwise posted in the SRs.
AEC37: Access, staging, and return roads open to race traffic are limited to 25 mph unless otherwise posted in the SRs or by signage; where spectators, workers, or congestion are present, drivers must slow to a safe speed.
AEC38: No passing is permitted in the hot pit lane unless specifically directed by an AORC official; merge and lane-change instructions by officials must be followed immediately.
AEC39: Speed enforcement may be based on official observation, radar, video, GPS/telemetry (including RacingTrax), or any combination thereof. Penalties may be graduated for first/second offenses; reckless operation or egregious speeding may result in disqualification at the Race Director’s discretion.
AEC40: Pit support vehicles (including UTVs, golf carts, and motorcycles) are subject to posted pit/access-road limits and must be operated by licensed adults; riding in beds or on external areas is prohibited; headlights/marker lights are required after dark.
PITS
APIT1: All official pits are designated and marked by AORC. Pit Captains control their zones Access is restricted to registered crew with pit passes, wristbands, or credentials issued by AORC. Unauthorized persons are prohibited. Security checkpoints may be established at entry/exit points. The Driver of Record is fully responsible for the conduct of their pit crew, chase crew, and guests.
APIT2: Pits must be set back a minimum of 50 feet from the course edge unless otherwise marked by AORC. No pits may be located on the outside of turns, in narrow sections, or within 300 feet of the start/finish, checkpoints, paved road crossings, or other designated “no pit” areas. Pit Captains have final discretion over safe placement. All equipment (EZ-ups, trailers, barriers, etc.) must be securely anchored to withstand wind and dust conditions.
In some cases, overnight camping may be allowed in or directly adjacent to the pits; in other cases it may not be allowed. Camping rules will be communicated on a race-by-race basis in the Supplementary Regulations.
APIT3: All pit crews and race vehicles must also obey any locally posted speed limits in and around pit access roads or staging areas. Speed is measured by AORC officials using radar, timing data, visual estimation, or any combination thereof. Violations may result in penalties at the discretion of AORC officials.
- Speed limit inside designated pit areas: 25 mph.
- Speed limit on designated pit access roads: 25 mph.
- Speed limit in adjacent non-race public areas: 25 mph, unless otherwise posted.
Violations carry penalties up to disqualification at the discretion of the Race Director.
APIT4: Fueling is permitted only in designated pits under the supervision of crew in proper PPE.
Mandatory for all fueling personnel:
- SFI 3.2A/5 fire suit.
- Fire-resistant balaclava, gloves, and apron.
- Closed-toe leather boots (SFI/FIA recommended)
Fire-resistant helmets and shoes are strongly recommended.
Each pit must have:
- One (1) fire extinguisher (min 5 lbs, ABC-rated) per fueling vehicle or UTV/Moto entry.
- Two (2) fire extinguishers (min 10 lbs each, ABC-rated) per fueling station for car/truck entries.
- Secondary fuel containers stored on approved spill mats.
- An approved fuel containment mat under all vehicles during fueling.
- Pit crews must refuel from the cold side of the pit (away from racecourse traffic) where feasible.
APIT5: Children under the age of 18 must remain under direct adult supervision at all times. Pets are not recommended but may be allowed if leashed and under the owner’s direct supervision at all times. Owners must clean up pet waste immediately. All crew must remain behind barriers or marked safe zones unless actively servicing a vehicle. Violations may result in removal of pit access, disqualification, fines, or suspension.
Absolutely prohibited in pits:
- Alcohol or drugs
- Fireworks, firearms, drones, or remote-control devices
- Open flames or campfires - while any active racing is taking place.
- Smoking within 50 feet of fuel containers or fueling activity.
APIT6: Each race team is responsible for collecting and removing all trash from its designated pit area. Mandatory use of spill mats under all vehicles and fuel containers. Teams must remove all fluids, including oil, fuel, or coolant, and dispose of them in compliance with local, state, and federal law.
Penalties, fines, or suspension may be assessed for teams leaving trash, debris, or fluids on the ground.
APIT7: All pit zones must remain accessible to emergency vehicles at all times. Crews must immediately clear lanes when instructed by AORC officials or emergency personnel. Failure to yield to emergency vehicles is grounds for penalties up to disqualification.
APIT8: No passing is permitted inside pits or within 300 feet on either side of a pit entry/exit, except under the direction of an AORC official. Drivers must come to a complete stop in the designated pit box for service. Unsafe driving or contact in the pits is grounds for penalties, including disqualification. Pit Captains may black flag or stop unsafe vehicles until corrected.
INFRACTIONS AND PENALTIES
AIP1: AORC officials may impose penalties for any conduct, violation, or act deemed detrimental to the sport, regardless of whether specifically listed. Penalties may include reprimand, time penalties, position loss, fines, disqualification, suspension, or expulsion.
AIP2: The following are examples of infractions subject to penalty. This list is illustrative, not exhaustive:
- Failure to appear when requested by AORC officials.
- Failure to attend mandatory driver/rider meetings.
- Failure to stop at checkpoints, paved road crossings, or stop controls.
- Rolling through a stop checkpoint, pit stop, or paved road crossing.
- Unsafe or reckless driving in pits, staging, or course access areas.
- Abusive nerfing, deliberate contact, or unsafe passing.
- Leaving designated course boundaries or short coursing.
- Unauthorized removal or relocation of course markings.
- Pit area violations, including unsafe fueling or noncompliance with safety rules.
- Verbal abuse, threats, or physical contact with AORC officials, other entrants, or crew.
- Unsportsmanlike conduct or behavior detrimental to AORC.
AIP3: Penalties assessed to teams or drivers/riders of record will be administered in the following manner:
- First offense may result in reprimand, fine, or time penalty.
- Second offense of the same rule may result in increased penalty, including loss of position or disqualification.
- Third offense or any act deemed severe may result in suspension up to one year or expulsion from AORC events.
- Officials may apply minimum penalties (e.g., five-minute time penalty for rolling a stop checkpoint) or escalate up to disqualification depending on severity.
AIP4: While all penalties are imposed at the discretion of the Race Director, the RD will consider all Official AORC Staff recommendations. Infractions reviewed under protest or appeal will be resolved in accordance with AGP: Protests and Appeals. All rulings stand unless overturned through the official appeal process.
RACE FINISH LINE PROCEDURES
AFN1: The Driver or Rider of Record is solely responsible for knowing how many laps have been completed and when their race is finished.
Do not rely on AORC finish line staff to signal completion. In some cases, staff may direct competitors due to changing course conditions, class adjustments, or safety considerations. Such instructions must be obeyed at all times.
AFN2: Upon leaving the course and entering the designated finishers’ corral, competitors must immediately reduce speed to 5 mph. Vested AORC officials will direct vehicles and assign them into lanes to group finishers by class and order of finish.
When finishing after dark, all competitors must turn off headlights to avoid blinding staff. Drivers should look for lighted batons and exercise caution when entering the corral area.
AFN3: Placement in finish corral lanes is not an official finishing position. All finish line results are preliminary and subject to confirmation by AORC timing and scoring officials.
Final results may change after review of timing data, penalties, infractions, and protests. Official results are certified within 24–48 hours after the conclusion of the Event.
AFN4: Finish line and staging staff do not score or referee races. Competitors must not dispute results, penalties, or protests with finish line staff. Protests and complaints must follow the procedures in AGP: Protests and Appeals.
AFN5: The finish corral and finishers’ stage are reserved for Drivers, Co-Drivers, and Riders of Record.
At AORC’s discretion, crew members, friends, and family may be admitted to the finish area provided they follow all staff instructions and do not interfere with operations.
AFN6: Unsportsmanlike conduct of any kind will not be tolerated at the finish line or in the finishers’ corral. This includes, but is not limited to:
- Abusive language, threats, or harassment toward officials, media, or other participants.
- Erratic, aggressive, or unsafe operation of vehicles in the finish area.
- Littering, including dropping catheters, fuel containers, or trash on the ground.
- Disorderly behavior by team members, guests, or associates.
The Driver or Rider of Record is responsible for the conduct of all team members, crew, and associates present at the finish line.
Violations may result in penalties up to and including time penalties, disqualification, forfeiture of awards, fines, suspension, or revocation of AORC membership.
POST-RACE TECHNICAL INSPECTION
APTI1: AORC reserves the right to subject any vehicle to mechanical inspection post-race. The Driver of Record is responsible for removing or preparing components for inspection. Failure to comply will result in disqualification and possible suspension.
APTI2: The Race Director may require post-incident inspection of vehicles involved in accidents. Refusal may result in time penalties, disqualification and suspension.
APTI3: Post-race impound of finishing vehicles is at the discretion of AORC. Vehicles may be held up to one hour after the official finish, or longer if protests, complaints, or engine claims are pending.
APTI4: Refusal to comply with engine claim rules as defined in Class Rulebooks may result in disqualification, forfeiture of awards, and suspension from all AORC events for one year.
DISQUALIFICATION
AGD1: Drinking intoxicating beverages in the official pre-race technical inspection area, post-race technical inspection areas (including impound), pits, racecourse, or surrounding areas is prohibited. The use of narcotics, stimulants, depressants, or similar substances is also prohibited. Any entrant, crew member, or support personnel showing evidence of alcohol or drug use shall be subject to removal from the premises, penalties, suspension, and/or disqualification. See also AGR8.
AGD2: Any entrant who makes a false statement on an entry form, contingency form, or other official AORC document, or submits a falsified signature, shall be disqualified and forfeit all prize money, points, and contingencies from that Event. The entrant may also be suspended from future Events for up to one year.
AGD3: Any entrant disqualified from an Event for any reason forfeits all rights to prize money, points, and contingencies. Entry fees are non-refundable.
AGD4: Outside assistance on or near the racecourse during the Event is prohibited except in designated pits or gas stops as published by AORC. Traveling on the racecourse in non-registered vehicles before the end of the official race time limit is prohibited. Situations involving safety are at the discretion of the Race Director.
AGD4.1: If a vehicle breaks down on the course, the following options are approved. Any deviation may result in penalties, suspension, or disqualification:
- The Driver/Rider or Co-Driver/Co-Rider may walk to and from the nearest official AORC-designated pit stop only, to retrieve equipment or parts. Anyone else delivering equipment or parts will subject that vehicle to penalties or disqualification.
- Another race-entered vehicle may pick up equipment or parts at the previous official
AORC-designated pit stop and deliver them, traveling only in the proper race direction. Traveling backward on the course will subject both entrants to penalties or disqualification.
- Any AORC Official may assist an entrant if done in a safe and controlled manner, with permission from the Race Director, Operations Manager, or Communications Director.
AGD5: Any entrant or support personnel who subjects an AORC official, another entrant, or their support personnel to verbal threats, intimidation, or physical abuse shall be subject to penalties, suspension, and/or disqualification. Acts of physical abuse may be referred to law enforcement.
AGD6: Any entrant found guilty of course cutting, short coursing, or intentionally leaving the marked course without authorization may be penalized with a time penalty, suspension, and/or disqualification at the discretion of race officials.
AGD7: Any entrant or crew member who tampers with, disables, or manipulates official scoring or timing equipment may be penalized with a time penalty, suspension, and/or disqualification at the discretion of race officials.
AGD8: Any entrant, crew member, or support personnel who alters, tampers with, or otherwise modifies a vehicle or race equipment after the completion of pre-race technical inspection and before post-race technical inspection to gain a competitive advantage (including, but not limited to, adding or removing weight, adjusting engine performance settings electronically or mechanically, modifying suspension, fuel systems, or control software) may be penalized with fines, time penalties, suspension, and/or disqualification at the discretion of race officials. Vehicles found to have been altered may be declared ineligible and subject to seizure for inspection. Adjustments expressly permitted by ATR or the Event Supplementary Regulations and performed in designated areas in accordance with published procedures are exempt when properly documented.
PROTESTS
AGP1: The Race Director, with or without a protest, has the authority to penalize, fine, disqualify, and/or suspend any vehicle, entrant, or team for violations of these Rules, Supplementary Regulations, or official directives. Interpretation of all rules, violations, and penalties is at the discretion of AORC. Penalties levied at the discretion of AORC are final, subject only to the limited appeal process described in AGP6.
AGP2: Only entrants within the same class may lodge a technical or engine protest against another entrant. All protests must:
Be submitted electronically using the official protest link on the AORC website under /racerinfo (as also provided by email and at the drivers meeting),
Be accompanied by the appropriate protest fee, paid electronically at the time of submittal, and
Be submitted no later than thirty (30) minutes after the official end of the Event time limit.
Any supporting photo or video evidence must be uploaded or transmitted electronically at the time of filing. Protests considered frivolous, unsportsmanlike, or filed in bad faith may be rejected. In such cases, fees are forfeited and additional penalties may be imposed at AORC’s discretion.
AGP3: Technical and engine protests must be accompanied by a fee per item protested. Fee amounts are set by AORC and may be updated annually by bulletin. The current schedule is:
- Technical Protests (all classes) – $1,000
- Engine Protests – UTV, Motorcycle, Quad – $1,500
- Engine Protests – Class 1000 – $2,500
- Engine Protests – Other Car/Truck – $5,000
In some cases, AORC may retain fifteen percent (15%) of the protest fee to cover inspection and administrative costs. The balance is returned to the protestor if the protest is upheld, awarded to the protested party if denied, or forfeited to AORC if the protest is deemed frivolous.
AGP4: Any entrant whose vehicle is officially protested must submit to inspection of the protested item(s). Failure to comply may result in time penalties and/or disqualification and/or suspension.
Inspection may include disassembly and measurement. Entrants are responsible for costs of disassembly/reassembly if the protest is upheld.
If disassembly/reassembly requires outside shop labor, those costs are billed directly to the protested party if the protest is upheld against them.
Those permitted to attend the inspection are:
- The protestor or their designated representative,
- The protested competitor or their designated representative,
- The protested competitor’s mechanic,
- AORC officials (including the Race Director or Operations Manager),
- The AORC Technical Director (who supervises the inspection), and
- At AORC’s discretion, with the protested competitor’s approval, members of the press may observe for reporting purposes only.
No other persons may attend or witness until the inspection has concluded.
AGP5: A complaint filed for improper driving or conduct does not require a fee.
The complaint must be submitted electronically via the official protest link no later than thirty (30) minutes after the official Event time limit.
If the complainant is broken down on course, the complaint may be verbally filed with a radio-equipped AORC official, who will notify race control.
The entrant against whom the complaint is filed will be held in impound until the complainant arrives.
The complainant must make every reasonable effort to arrive at impound within one (1) hour after the official end of the Event.
AGP6: An entrant may appeal in writing within twenty-four (24) hours to the AORC Competition Committee only on the grounds of (i) scoring error, (ii) procedural error, or (iii) abuse of discretion. Appeals must state specific grounds and include supporting documentation. The Competition Committee’s ruling is final and binding. Decisions of the Race Director on protests, penalties, and rule interpretations are not appealable.
2026 AORC Technical Regulations:
Technical regulations apply to all classes unless otherwise noted in class regulations. Class requirements or safety regulations that are class specific may take precedence over technical regulations.
If class rules specifically state that a modification or optional equipment is allowed, it will be allowed. American Off-Road Racing Championship's intent when prescribing specifications for safety equipment for vehicles/entrants that will compete under American Off-Road Racing Championship rules is to provide protection to all entrants, crew members, officials, and spectators.
American Off-Road Racing Championship does not intend to restrict the general or specific design of any vehicle, but does encourage all entrants to give full attention to safety requirements.
Any deviation from the technical rules at any American Off-Road Racing Championship promoted or sanctioned event will be contingent upon the approval of American Off-Road Racing Championship in writing in advance of the event.
When operating vehicles on the race course, at any time, entrants must use an approved helmet, protective clothing, eye protection, and safety equipment.
SAFETY EQUIPMENT
TR1 HELMETS
Helmets used in four-wheel vehicles must meet the following requirements:
- Snell memorial foundation, with a legible Snell sticker attached:
- SA2020
- SA2025
- FIA Standard, with a legible with a legible FIA sticker attached:
- 8860-2018
- 8860-2018-ABP
- 8860-2010
- 8859-2024
Youth rider/driver may use SNELL/FIA CM2016.
American Off-Road Racing Championship recommends each helmet be labeled (painted) with the driver/rider’s name, blood type, allergies, or any other medical information. Left hand side of the helmet must be free of all stickers. Straps must have "D" rings, no snaps or Velcro.
As of January 1st 2026, SAH2015, SA2015, FIA 8859-2015 and FIA 8860-2004 helmets will no longer be allowed.
TR2 PROTECTIVE CLOTHING
4-Wheel Vehicles
Driving suits are required that cover the body from the neck to the ankles and to the wrist. Suits must be manufactured from fire resistant material with the manufacturer's fire-resistant label attached. Suits must be labeled SFI 3.2A/5 or higher. ONE PIECE DRIVING SUITS ARE MANDATORY. Drivers’ suits must be in good condition, clean and free of damage (i.e., holes, tears, rips, etc.) Driving gloves and shoes must meet SFI 3.3 requirements and be free of holes are mandatory. Fire retardant Head sock rated to the SFI 3.3 specification or a helmet skirt rated to the SFI 3.3/5 specification are mandatory.
Only cotton undergarments or fire-retardant long sleeve tops, and long bottom undergarments as well as fire retardant socks rated to the SFI 3.3 specification are allowed.
TR3 EYE PROTECTION and DENTURES
Shatter resistant eye protection is required for all occupants competing in/on vehicles without full windshields. Those competing in closed cockpit vehicles must have eye protection available in the event the windshield is knocked out or broken.
It is highly recommended that entrants with removable dentures remove them prior to competing in an off-road event.
TR4 HEAD AND NECK RESTRAINT
All drivers/riders in four (4) wheel vehicles must wear a frontal head restraint (FHR) bearing the SFI, Foundation’s 38.1 manufacturer’s certification label. All head and neck restraints must be replaced or recertified 5 years from the date of manufacture. MERU Safety restraints or any restraint using shock absorber will not be allowed.
TR5 FIRST AID KIT
4-Wheel Vehicles
A suitable, weatherproof, emergency kit composed of individually packaged units must be carried in each vehicle. Each individual unit must contain at least the following items:
(1) - 4" Bandage Compress
(2) - 2" Bandage Compress
(1) - Triangular Bandage
(6) - 2" x 3" Adhesive Pads
(8) - 1" x 3.375" Adhesive Bandages
(6) - Prep Pads Treated
(1) - Eye Dressing Packet
(5) - Ammonia Inhalants
(1) - Ace Bandage
Not required for short course vehicles.
TR6 EMERGENCY SIGNALING DEVICES
All vehicles must carry a minimum of two emergency warning devices. Two (2) battery-operated red flashing beacons, two large glow sticks or two red reflective devices must be carried in the vehicle. Reflective devices must be at least 12 inches high and 12 inches long and be free standing. American Off-Road Racing Championship stuck stubs are supplied to each entrant at registration. The stuck stub must be kept with the vehicle along with a writing instrument. If a break down or out-of-race condition occurs, the stuck stub must be completed and given to another.
Not required for short course vehicles.
TR7 HORNS
It is required that all vehicles to be equipped with a loud sounding device. Sirens may be used in addition to horns. Some classes may be required to run collision warning transponders at designated events.
Not required for short course vehicles.
TR8 REFLECTORS
All vehicles must have two (2) (four-wheeled Vehicles) 2" minimum diameter red reflectors on the rear of the vehicle and/or helmet. LED lights are not reflective and do not fulfill this rule.
TR9 FIRE EXTINGUISHER
Each vehicle shall have one (1) hand-held portable UL approved 2.5 lb. minimum ABC rated dry chemical type or halon, AFFF Foam, Novec 1230, FE-36 fire extinguisher equipped with capacity gauge. Fire extinguishers must have a gage and must be fully charged and easily accessible from inside the vehicle. One (1) minimum 5-lb. ABC- class, dry chemical fire extinguisher or foam equivalent must be mounted on the exterior of the vehicle. Battery powered vehicles will be required to carry an additional Class D fire extinguisher. Must be accessible to outside of the vehicle and mounted to prevent damage to fire extinguisher during rollover. A “On-board fire suppressant” having three (3) nozzles located in these areas, driving compartment, fuel compartment and engine compartment is recommended. All fire extinguishers must be red or white in color, no black extinguishers allowed.
TR10 SURVIVAL SUPPLIES
All vehicles competing in long course events must carry at least two days of survival supplies and at least one (1) quart of water or other suitable liquid for each occupant/rider.
Not required for short course vehicles.
SUSPENSION COMPONENTS
For classes that have wheel travel limitations the following will apply:
Front wheel travel will be measured at the centerline of the front spindle from metal stop to metal stop. Rear wheel travel will be measured at the centerline of the axle from metal stop to metal stop. Stops will be non-removable and nonadjustable. If limiter straps are to be used for stopping the bolts that mount them must be drilled with a minimum 1/8(.125) inch hole so that a American Off-Road Racing Championship may seal them.
TR11 SHOCK ABSORBERS and BUMP STOPS
At least one shock absorber per wheel, in working condition, must be used on all 4-wheel vehicles. Other systems may be used with prior approval of American Off-Road Racing Championship.
Suspension bump stops must be static and can only be made of rubber, plastic, urethane, etc. In classes that are allowed movable bump stops or secondary suspension, movable stops are allowed.
TR12 SECONDARY SUSPENSION
Secondary suspension shall include leaf springs, torsion bars, coil over shocks, air bags, air shocks, Haga balls or any other item that changes the wheel rate at any point in its travel other than primary suspension system that was delivered on the vehicle.
Shocks will be considered air shocks/secondary suspension when charged to 200 PSI in its fully extended state and the static shaft pressure exceeds 300 PSI when fully collapsed.
Bump stops will be considered secondary suspension if they contact the suspension unit more than 4" before the end of its travel.
TR13 WHEELS and TIRES
Snap-on hubcaps or wheel covers of any type are not permitted on any class of vehicle during competition. All rims including spares must be stamped with vehicle race number. Number stamp must be 1/4(.250) inch tall, and be located within two (2) inches of valve stem. Tires will be visually checked for condition and must be considered safe by American Off-Road Racing Championship prior to competing. It is highly recommended that all paint be removed from the mounting surfaces of the rim and the hub.
Maximum tire size is 45" Outside Diameter (O.D.). Pressure checked at 18 PSI on rim to be used.
DOT tire classes are restricted to tires that are intended for highway use. All tires must be designed, built, and sold for use on passenger car, SUV or pickup truck ONLY stamped with D.O.T. number.
TR14 FASTENERS
All nuts, bolts, and component parts on each vehicle's suspension system, chassis and running gear must be secured with Grade 8 or better nuts and bolts and secured with either lock nut, cotter keys or safety wire and have at least one full thread showing through the nut.
STEERING and BRAKE COMPONENTS
TR15 STEERING
Steering wheel play must be kept to a minimum. Drag link and tie-rod ends must be secured and keyed. Steering must be considered safe by American Off-Road Racing Championship before the vehicle will be permitted to race.
TR16 BRAKES
Brakes must be in a safe working condition and able to apply adequate braking force to "Lock-up" all four wheels. Turning or steering brakes are allowed unless not allowed by class rules.
ELECTRICAL SYSTEM
TR17 IGNITION
Each vehicle in competition must have a positive action on-off switch in good working order. The switch must be located within easy reach of the driver and marked or labeled "ignition" ON-Off. All electric fuel pump switches must be labeled as "FUEL" and must be accessible to the driver and outside personnel.
TR18 BATTERIES
Batteries must be securely mounted. All batteries mounted in the driver's compartment must be fully enclosed including the sides and bottom of the battery. Batteries will be considered to be located in the driver's compartment if there is not a full bulkhead (firewall) separating the driver and the battery. Regardless of location, the battery positive terminal must be insulated.
TR19 LIGHTS
Four-wheel Vehicles
All four-wheel vehicles must have a minimum of two (2) headlights, two (2) brake lights, and two (2) taillights. Taillights must be mounted at least 45 inches from the ground if other than stock. The brake light must be at least 3" in diameter. All tail lights must be DOT and in operating condition at all times.
All four-wheel vehicles must have a rearward facing amber colored light. Amber and blue Lights (if required) must be at least 3” diameter and DOT approved. These lights must be connected to the ignition and remain on during the race. Amber and blue lights must be seen 180° and not blocked by tires or parts. The bulb must be 25 to 55 watts, or LED with equivalent lumens as long as it has an amber/blue colored lens. Light must be mounted at least 48 inches off of the ground. The light must be visible from any position aft of the vehicle and must be protected from damage in case of roll over.
Rearward facing lights must be in an operational condition before the vehicle will be allowed to start an event. During an event if the light goes out it must be fixed or replaced at the next available pit location before proceeding in the race. Any light that is connected to a switch that allows the vehicle to move in any direction without the light being on will cause that entry to be disqualified.
Not required for short course vehicles.
TR20 STARTERS
All vehicles must have a battery and a starter capable of starting the engine.
FUEL SYSTEM
TR21 FUEL
Any of the following commercially available gasoline’s, LPG, or diesel fuel may be used:
- Service station type pump fuel.
- Racing gasoline as manufactured.
- Commercial aviation gasoline.
- Natural or Propane Gas.
- Commercially available Ethanol i.e., E85, C85 or C95 is allowed. No oxygen bearing fuel including alcohol or nitromethane is allowed. Commercially produced, nationally advertised fuel additives may be used only in the quantities specified by the manufacturer and only if a sample of the gasoline with the additive is supplied for inspection to American Off-Road Racing Championship. Fuel samples may be taken at random before, during, and after the event.
TR22 FUEL TANKS
Safety fuel cells are required for all classes. Auxiliary fuel tanks may be added to a vehicle in all classes except Class 11. Auxiliary fuel tanks must be safety fuel cells. All fuel cells must be securely mounted, filled foam and vented to the outside of the vehicle, and have a substantial cross-member between the fuel cell and driver in vehicles with rear mounted cells.
No GI cans or fuel containers similar in construction or purpose will be allowed in/on any vehicle during a race. Safety fuel cells shall consist of a bladder enclosed in a metal (minimum of .060 thickness) container as follows:
Bladders shall be constructed of nylon or Dacron woven fabric impregnated and coated with a fuel resistant elastomer. Rotary molded polymer cells are not allowed. The minimum standards acceptable for physical properties are:
| Test Type | Minimum Standard | Test Specification |
|---|---|---|
| Tensile Strength | 450 lbs. | Spec. CCC-T-1916, Method 5102 |
| Tear Strength | 50 lbs. | Spec. CC-T-1916, Method 5134 |
| Puncture Test | 175 lbs. | Spec. Mil-T-6396, Article 4.5.17 |
These physical properties must be maintained throughout all areas of the finished bladder, including seams, joints and fittings.
Container
The bladder shall be fully surrounded in a smooth skinned casing. The container shall be made of .060" Aluminum or steel. Other materials may be approved on request. Use of magnesium prohibited.
TR23 FUEL FILLER LINES, VENTS, and CAPS
Fuel filler lines and caps must be mounted in a location where they cannot be knocked open or torn off of the vehicle. All fillers must be located within frame or body structure so as to prevent opening or damage during a roll-over or accidental impact. Fuel pick-up openings, lines, breather vents, and fuel filler lines shall be designed and installed not to allow spillage under any conditions. Fuel breather lines must have a check valve and in addition the line must be routed around the fuel cell. Fuel tank breathers must be vented outside the driver's compartment to the rear of the vehicle.
All fuel fillers attached to the frame or body must have a flexible coupling to the tank. Positive locking non-vented fuel filler caps are required. A check valve must be incorporated in the fuel tank to prevent fuel escaping if the cap and filler neck are torn from the tank. All fuel fillers must be surrounded with a splash guard or boot designed to direct spilled fuel to the outside of the vehicle away from the driver, engine, and exhaust system when fueling.
Must have inline external discriminator valve.
ENGINES, TRANSMISSIONS and DRIVELINES
TR24 ENGINE and ENGINE DISPLACEMENT
See class rules. Engine location and displacement may be inspected at any time. Engines may be sealed or marked by American Off-Road Racing Championship at any event.
TR25 ENGINE REPLACEMENT
Engine may be replaced during the event. Entrant must notify American Off-Road Racing Championship that engine is being replaced. Engine replacement must be performed at a designated location.
TR26 TRANSMISSION
Every vehicle in competition must have a functional reverse. All automatic transmissions must have a scatter shield of scatter blanket.
TR27 THROTTLES
Every vehicle except must have a throttle incorporating two (2) positive action return springs with a minimum pull of two (2) pounds each. A positive stop and override prevention system must be used to keep linkage from passing over center and sticking in an open position.
TR28 EXHAUST
All vehicles are required to be equipped with forestry approved spark arrestor or with approved mufflers. Exhaust system must be installed to direct the exhaust gases out of the body, rearward, behind the driver, away from the fuel tanks and tires, and placed in such a manner that will minimize the producing of dust. Exhaust pipes must extend at least twelve (12) inches to the rear of the driver's compartment.
TR29 DRIVE SHAFTS
All front engine vehicles with an open drive shaft must have a retainer hoop securely mounted and located within 6" of the front universal joint. The retainer hoop may consist of either a .25" x 2" steel strap, 2" wide nylon webbing, or .750 diameter tubing. Hoop or strap must be securely attached to a body or frame member.
TR30 FLYWHEEL SHIELDS
All front engine vehicles with standard transmissions must have a SEMA/SFI approved bell housing or cover. All front engine vehicles with an automatic transmission must have a scatter shield or scatter blanket.
TR31 FLUID COOLERS
Oil coolers, transmission coolers, and radiators mounted ahead of the driver or in the passenger compartment must have a shroud behind the cooler that will prevent liquids from the cooler or its lines from blowing back onto the driver or co-driver. All hoses that run through the passenger compartment must be shielded.
TR32 AUXILIARY EQUIPMENT
A generator, fan, water pump (water-cooled engines), and a complete functional electrical system must be connected and in operation at the start of the race.
TR33 SUPERCHARGERS and TURBOCHARGERS
Superchargers and turbochargers are only allowed in those classes noted. Diesel or gasoline engines in stock classes which utilize stock turbochargers may be approved on an individual basis.
VEHICLE SAFETY EQUIPMENT
TR34 ROLL CAGES
All vehicles must be equipped with a roll cage. Minimum design and tubing size based on seamless 4130 chromoly tubing or ASTM 1018/1026 CDS/DOM. No aluminum or other nonferrous material permitted.
Material
Material for roll cage construction must be 4130 chromoly tubing or ASTM 1018/1026 CDS/DOM.
All welding must be of the highest quality with full penetration and no undercutting of the parent metal. All welds shall conform to the American Welding Society D1.1, Structural Welding Code,
Chapter 10, Tubular Structures and Standards for the material used. It is strongly recommended that the welder inspect all welds using magnetic iron powder or die-penetrate testing.
All tubes must be welded 360-degrees around the circumference of the tube. No oxy-acetylene brazing or welding allowed.
None of the tubing may show any signs of crimping or wall failure. All bends must be mandrel type. The center radius of the bends may not be less than three (3) times the outside diameter of the roll cage tubing.
Roll Cage Tubing Sizes
For the purposes of determining roll bar tubing sizes, vehicle weight is as raced, but without fuel and driver. Note: There is an allowance of minus 0.010 inches on all tubing thicknesses. Minimum tubing size for the roll cage is:
- Up to 2000 lbs: 1.500” x 0.095” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
- 2001 - 2500 lbs: 1.500” x 0.120” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
- 2501 - 3000 lbs: 1.750” x 0.095” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
- 3001 - 4000 lbs: 1.750” x 0.120” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
- 4000 - 6000 lbs: 2.000” x 0.120” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
- Over 6000 lbs: 2.000” x 0.120” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
- Additional tubes required. Upper and lower B-Pillar plans must have “X” bracing. Windshield tubes must have lower support tubes. Roof plane must be “X” braced. (see fig2)
- Roll Cage tube size will be determined by the weight of the race vehicle as race ready (sitting on the starting line.) With all spares, tools, etc, full of fuel. Driver and co-drivers are not included in the gross weight.
Construction Procedures
Cages must be securely mounted to the frame or body and gusseted and braced at all points of intersection. Cab or body mounted cages must not be attached to the body structure by direct welding, but must be bolted through and attached by the use of doubler plates (one on either side) with a minimum thickness of 3/16(.187) inch. Where bolt and nuts are used the bolts shall be at least 3/8 (.375) inch diameter SAE Grade 8 or equivalent. Roll cage terminal ends must be located to a frame or body structure that will support maximum impact and not shear. Minimum material dimension requirements for roll cages apply to the following members of the roll cage:
- Front and rear hoop or side lateral tubes
- Front and rear interconnecting bars
- Rear down braces
- Lateral bracing
- Elbow and door bars
- Lower A-pillar tubes, and lower B-pillar tubes
- A-Pillar brace (Wind wing tubes)
- Front Crossover braces (Windshield tubes)
Roll Cage Design
All roll cages must be constructed with at least one (1) front hoop (top of cage to floor), one (1) rear hoop (top of cage to floor), or two (2) side lateral hoops, two (2) interconnecting top bars, two (2) rear down braces and one (1) diagonal brace and necessary gussets. If front and/or rear hoop terminate at elbow/door bar, lower A-pillar and/or B-pillar must be made of the same tubing size as the roll cage. Upper main, front, rear, and lateral roll bar hoops must be made in one piece without joints. Centerlines of all required tubes must converge at intersections.
Any vehicle that is not equipped with stock steel doors for driver and co-driver must have sidebars, at least one on each side that will protect the occupants from side impact. Side bars must be parallel to the ground and be located vertically in relation to the occupants to provide maximum protection without causing difficulty in entering or exiting the vehicle. The sidebars must be constructed of tubing of the same material and dimensions as the roll cage. Additional side tubes may be required to limit cockpit intrusion, additional tubes must be of the same size tubing as the roll cage. Tubes must be placed in such a manner as to limit openings adjacent to the occupants. Maximum opening size in this area is limited to 370 square inches.
All roll cage bars must be at least 3” in any direction from the driver and co-driver’s helmets in their normal driving positions.
Gussets must be installed at all main intersections on the main cage including diagonal and rear down braces, and where single weld fractures can affect driver’s safety. Gussets may be constructed of .125” X 3” X 3” flat plate, split, formed and welded corner tubing, or tubing gussets the same thickness as the main cage material. Rear down braces and diagonal braces must angle no less than 30 degrees from vertical.
If a low back seat is used, head/neck restraints designed to prevent whiplash are required on all vehicles. These restraints must be a headrest of approximately 36 square inches, with a resilient padding at least 2” thick. Any portion of the roll bar or bracing which might come in contact with the helmet must be padded.
Full body Class 5, 5-1600 and Class 11 a-pillar tube support or wind shield tube is not required.
Figure 1: The illustration provided is an example of acceptable cage design.
Actual tube locations may vary from illustration (Locations and sizes subject to American Off-Road Racing Championship approval).
Figure 1: Under 6,000 pound vehicles:
- Red tubes must be size required by weight.
- Blue tubes must be one tube size smaller than required size.
Figure 2: The illustration provided is an example of acceptable cage design.
Actual tube locations may vary from illustration (Locations and sizes subject to American Off-Road Racing Championship approval).
Figure 2: 6000+ Pound Vehicle:
- Red tubes must be 2.000” x 0.120”
- Blue tubes may be 2 standard sizes smaller, diameter or wall thickness, or a combination of the two.
- Tube locations may vary from illustration.
- Locations and sizes subject to American Off-Road Racing Championship approval.
TR35 SAFETY HARNESS
All vehicles must have a heavy-duty type five-point fast release (no push button or quick release type) seat belt and shoulder harness with metal-to-metal buckles and connectors for each occupant. Harnesses must have SFI Foundation's 16.1 or 16.5 labels and expiration date labels. The single anti-submarine strap of the five-point system shall be attached so that it will exert maximum restraint to the upward movement of the belt and harness. The five-point system consists of a 2" seat belt, a 2" anti-submarine belt, and two 2" shoulder straps. No "Y" type shoulder belts. All belts must show the manufacturer's name, month, and year of manufacture. All belts must be changed after three (2) years of date of manufacture. American Off-Road Racing Championship recommends all belts be changed after one (1) year of use. Harness materials shall be nylon or Dacron polyester and in new or perfect condition with no cuts or frayed layers, chemical stains, or excessive dirt.
Shoulder harnesses should be mounted behind the driver/co-driver. The recommended mounting point is approximately 4" below the top of the shoulder. Lap belts should be kept at a minimum at least 2.5" forward of seat and backrest intersection. All belts must be mounted directly to a main structure member of the same size specification as the roll cage and with gussets. All adjustment buckles should be kept at a minimum distance of 1.5" from the seat to prevent accidental loosening or chafing. Mounting hardware must utilize at least 3/8(.375) inch grade 8 steel bolts with 1.5" diameter washers attached through body or frame using lock nuts or cotter key. All belt hardware must be safety wired.
Where slip buckles ("E" rings) are used, they must be doubled up. Example two (2) slip rings per connection.
TR36 SAFETY NETS
Safety nets are mandatory on all enclosed vehicles and must cover the complete open area of side window openings. Safety nets are required with or without side glass and must be labeled SFI 27.1. The net must be fastened every 6 inches around the outside of the net. Fixed corners must be fastened with metal fasteners i.e., hose clamps, Adel clamps, bolts etc. The net border or edge and tie downs shall be made of materials that are as strong or stronger than the netting itself. Acceptable methods of tying the nets into the vehicle include, but are not limited to: hose clamps, snaps, nylon ties, Velcro, metal hooks and steel rods.
Rod must be made from a minimum of 1/2-inch solid steel and go 1 inch through the upper rear mounting tab. 1/2- inch rod top and bottom. No fixed upper rods. • All window net mounts must be welded to the roll cage. The window net, when in closed position, must fit tight and be secured with a safety belt type of latch. Push button latches are not allowed. Spring type mounting of nets on the top or bottom is not permitted.
Nets shall be installed so that the driver and/or co-driver can release the netting and exit the vehicle unassisted regardless of vehicle position. Net installation must meet with the approval of the chief technical inspector.
Netting must be installed on the inside of the roll cage bars so that it will not be damaged or come off the car in the event of a roll-over or slide on the side. All nets must have no more than a 1 inch gap on all borders to contain hands and fingers inside the vehicle. Nets attached to the door frame, or attached to an opening frame covering the entire opening are approved as long as the door/frame is equipped with a secondary latching device.
TR37 SEATING
Only seats manufactured for racing will be allowed. All seats must be securely mounted using minimum 3/8(.375) inch grade 8 hardware. Adjustable track type seats must be securely fastened so as to allow no vertical or lateral motion. If stock VW type seat runners are used, they must be clamped to the floor with a minimum of two (2) U-bolts per rail and have 1" diameter washers on the underside. Head and neck restraints are mandatory. Low back seats are not allowed.
GENERAL VEHICLE COMPONENTS
TR38 DRIVER'S COMPARTMENT
Driver and/or co-driver are to enter and exit the driving compartment unassisted with ease, with the vehicle in any position. The driving compartment must be separated by metal firewalls or bulkheads from any acids or fuels. The roof shall also be covered with sheet metal or sheet aluminum (minimum thickness .080 inch) covering all areas. No items inside the driving compartment should be a danger to the occupants, and is subject to Technical Director's approval.
TR39 DOORS and LATCHES
All vehicles with operable doors must have positive locking mechanisms, and must have a secondary latching device.
TR40 FIREWALLS
All vehicles must utilize an all-metal (.040 thick) firewall to separate the driver's compartment from any dangers. Firewalls will keep occupants protected from, fire from the engine and any fuel supplies, any fluids hot or cold. A minimum firewall must extend from the driver's shoulder height to the vehicle floor and body. Maximum gap around any item is 1/16(.062) inch. If rear mounted safety fuel cell is higher than shoulder height, the firewall must be extended at least two inches above the fuel cell.
TR41 BALLAST
Any material used for the purpose of adding weight to meet minimum weight requirements, must be properly attached to the vehicle's structure. Any material added to make minimum weight requirements must also have holes drilled in material so that it may be sealed to a non- removable structure member.
TR42 WEIGHT
Vehicle race weight shall be considered dry weight. (Dry weight is with all fuel tanks drained.) Tools, spare tires, and parts removed, but otherwise the vehicle must be race ready. Official weight will be considered weight shown on official scales.
TR43 FLOORBOARDS
Floorboards or belly pans are required on all vehicles and must be held on by a minimum of six (6) .25" bolts per side if the floor is not an integral part of the body or chassis. Floorboards must cover the entire area from the front of the pedal assembly to the back of the seat(s) and from outside edge to outside edge on the sides. Floorboards will protect occupants from dust and debris.
TR44 BUMPERS and HAZARDOUS PROTRUSIONS
No hazardous front or rear bumpers, nerf bars, frame ends or other protruding objects from the vehicles are allowed. All ends must be rounded and capped off. All vehicles must be equipped with safe front and rear bumpers.
TR45 MIRRORS
A rear-view mirror is required on all. Mirrors are subject to Technical Directors approval.
TR46 SKID PLATES
Skid plates designed to protect the front suspension, steering, and brake components are required on all vehicles. Skid plates must be designed of metal and be securely mounted.
TR47 STORAGE
All spare parts and extra equipment carried on or in a vehicle must be securely fastened to prevent their movement.
TR48 CHASSIS and BODY
All body components shall remain on the vehicle (accidental damage excluded) during the entire event. Body/chassis series must be maintained with body/chassis combinations. as specified in individual class rules.
Fenders must be securely attached to the vehicle if required. The removal of fenders not damaged during the race, after the race has started, will cause the vehicle to be disqualified.
TR49 HOSES
All hoses including metal lines and fittings must be securely clamped and/or safety wired in place.
TR50 IDENTIFICATION MARKINGS
All vehicles in competition must be identified with the correct vehicle number displayed according to the following rules.
All numbers must be displayed on a contrasting background. Number plate background will be distinguishable from the color of the vehicle.
American Off-Road Racing Championship assumes no responsibility for scoring vehicles that have unrecognizable identification numbers. It is the driver's responsibility to keep numbers recognizable at all times during the event.
Four-Wheel Vehicles
- Visible from both sides of the vehicle, one (1) number per side. Numbers must be a minimum of 10" high with a minimum 1" wide stroke.
- Visible from the rear, one (1) number. Numbers must be a minimum of 6" high with a 1" wide stroke.
- Visible from the front, one (1) number upper left Driver's Side visor area. Numbers must be a minimum of 4" high.
- Visible from above, one (1) number. Numbers must be a minimum of 8" high with a 1" wide stroke.
PIT-SUPPORT VEHICLES
All pit-support vehicles will have a minimum 4-inch-high white number of race vehicles on both sides of the vehicle on side windows, on upper passenger-side corner of front windshield and on rear window. Pit support vehicles must have a current American Off-Road Racing Championship pit pass attached to the lower passenger side portion of the front windshield.
TR51 ADVERTISING on VEHICLES
Advertisements may be displayed on vehicles provided they are in good taste and do not interfere with identification marks.
TR52 RADIO EQUIPMENT
Race vehicle/support vehicle radio equipment and or broad casts may not at anytime interfere with Race Communications.
TR53 WORKMANSHIP
All construction, modifications and alterations must be performed in a workmanlike manner. Meet all rules and regulations and is subject to American Off-Road Racing Championship approval.
TR54 TRACKING DEVICE
All vehicles will be mandated to run a GPS tracking/scoring device designated by American Off-Road Racing Championship.
Technical regulations apply to all classes unless otherwise noted in class regulations. Class requirements or safety regulations that are class specific may take precedence over technical regulations.
If class rules specifically state that a modification or optional equipment is allowed, it will be allowed. American Off-Road Racing Championship's intent when prescribing specifications for safety equipment for vehicles/entrants that will compete under American Off-Road Racing Championship rules is to provide protection to all entrants, crew members, officials, and spectators.
American Off-Road Racing Championship does not intend to restrict the general or specific design of any vehicle, but does encourage all entrants to give full attention to safety requirements.
Any deviation from the technical rules at any American Off-Road Racing Championship promoted or sanctioned event will be contingent upon the approval of American Off-Road Racing Championship in writing in advance of the event.
When operating vehicles on the race course, at any time, entrants must use an approved helmet, protective clothing, eye protection, and safety equipment.
SAFETY EQUIPMENT
UTR1 HELMETS
Helmets used in four-wheel vehicles must meet the following requirements:
- Snell memorial foundation, with a legible Snell sticker attached:
- SA2020
- SA2025
- FIA Standard, with a legible with a legible FIA sticker attached:
- 8860-2018
- 8860-2018-ABP
- 8860-2010
- 8859-2024
Youth driver may use SNELL/FIA CM2016.
American Off-Road Racing Championship recommends each helmet be labeled (painted) with the driver/rider’s name, blood type, allergies, or any other medical information. Left hand side of the helmet must be free of all stickers. Straps must have "D" rings, no snaps or Velcro.
As of January 1st 2026, SAH2015, SA2015, FIA 8859-2015 and FIA 8860-2004 helmets will no longer be allowed.
UTR2 PROTECTIVE CLOTHING
4-Wheel Vehicles
Driving suits are required that cover the body from the neck to the ankles and to the wrist. Suits must be manufactured from fire resistant material with the manufacturer's fire-resistant label attached. Suits must be labeled SFI 3.2A/5 or higher. ONE PIECE DRIVING SUITS ARE MANDATORY. Drivers’ suits must be in good condition, clean and free of damage (i.e., holes, tears, rips, etc.) Driving gloves and shoes must meet SFI 3.3 requirements and be free of holes are mandatory. Fire retardant Head sock rated to the SFI 3.3 specification or a helmet skirt rated to the SFI 3.3/5 specification are mandatory. Only cotton undergarments or fire-retardant
long sleeve tops, and long bottom undergarments as well as fire retardant socks rated to the SFI 3.3 specification are allowed.
UTR3 EYE PROTECTION and DENTURES
Shatter resistant eye protection is required for all occupants competing in/on vehicles without full windshields. Those competing in closed cockpit vehicles must have eye protection available in the event the windshield is knocked out or broken.
It is highly recommended that entrants with removable dentures remove them prior to competing in an off-road event.
UTR4 HEAD AND NECK RESTRAINT
All drivers/riders in four (4) wheel vehicles must wear a frontal head restraint (FHR) bearing the SFI, Foundation’s 38.1 manufacturer’s certification label. All head and neck restraints must be replaced or recertified 5 years from date of manufacture. MERU Safety restraints or any restraint using shock absorber will not be allowed.
UTR5 FIRST AID KIT
4-Wheel Vehicles
A suitable, weatherproof, emergency kit composed of individually packaged units must be carried in each vehicle. Each individual unit must contain at least the following items:
(1) - 4" Bandage Compress
(2) - 2" Bandage Compress
(1) - Triangular Bandage
(6) - 2" x 3" Adhesive Pads
(8) - 1" x 3.375" Adhesive Bandages (6) - Prep Pads Treated
(1) - Eye Dressing Packet (5) - Ammonia Inhalants (1) - Ace Bandage
Not required for short course vehicles.
UTR6 EMERGENCY SIGNALING DEVICES
All vehicles must carry a minimum of two emergency warning devices. Two (2) battery-operated red flashing beacons, two large glow sticks or two red reflective devices must be carried in the vehicle. Reflective devices must be at least 12 inches high and 12 inches long and be free standing. American Off-Road Racing Championship stuck stubs are supplied to each entrant at registration. The stuck stub must be kept with the vehicle along with a writing instrument. If a break down or out-of-race condition occurs, the stuck stub must be completed and given to another.
Not required for short course vehicles.
UTR7 HORNS
It is required that all vehicles must be equipped with a loud sounding device. Sirens may be used in addition to horns. Some classes may be required to run collision warning transponders at designated events.
Not required for short course vehicles.
UTR8 REFLECTORS
All vehicles must have either two (2) (four-wheeled Vehicles) 2" minimum diameter red reflectors on the rear of the vehicle and/or helmet. LED lights are not reflective and do not fulfill this rule.
UTR9 FIRE EXTINGUISHER
Each vehicle must have one (1) hand-held portable UL approved 2.5lb minimum ABC rated dry chemical type or halon, AFFF Foam, Novec 1230, FE-36 fire extinguisher equipped with capacity gauge. Fire extinguisher must have a gage and must be fully charged and easily accessible from inside of vehicle.
One(1) minimum 5lb ABC- class, dry chemical fire extinguisher or foam equivalent must be mounted on the exterior of the vehicle. Must be accessible outside of vehicle and mounted to prevent damage to fire extinguisher during rollover. A “On-board fire suppressant” having three (3) nozzles located in these areas, driving compartment, fuel compartment and engine compartment is recommended. All fire extinguishers must be red or white in color, no black extinguishers allowed.
UTR10 SURVIVAL SUPPLIES
All vehicles competing in long course events must carry at least two days of survival supplies and at least one (1) quart of water or other suitable liquid for each occupant/rider.
Not required for short course vehicles.
SUSPENSION COMPONENTS
For classes that have wheel travel limitations the following will apply:
Front wheel travel will be measured at the centerline of the front spindle from metal stop to metal stop. Rear wheel travel will be measured at the centerline of the axle from metal stop to metal stop. Stops will be non-removable and nonadjustable. If limiter straps are to be used for stops the bolts that mount them must be drilled with a minimum 1/8(.125) inch hole so that a American Off-Road Racing Championship may seal them.
UTR11 SHOCK ABSORBERS and BUMP STOPS
At least one shock absorber per wheel, in working condition, must be used on all 4 wheel vehicles. Other systems may be used with prior approval of American Off-Road Racing Championship.
Suspension bump stops must be static and can only be made of rubber, plastic, urethane, etc. In classes that are allowed movable bump stops or secondary suspension, movable stops are allowed.
UTR12 SECONDARY SUSPENSION
Secondary suspension shall include leaf springs, torsion bars, coil over shocks, air bags, air shocks, Haga balls or any other item that changes the wheel rate at any point in its travel other than primary suspension system that was delivered on the vehicle.
Shocks will be considered air shocks/secondary suspension when charged to 200 PSI in its fully extended state and the static shaft pressure exceeds 300 PSI when fully collapsed.
Bump stops will be considered secondary suspension if they contact the suspension unit more than 4" before the end of its travel.
UTR13 WHEELS and TIRES
Snap-on hubcaps or wheel covers of any type are not permitted on any class of vehicle during competition. All rims including spares must be stamped with vehicle race number. Number stamp must be 1/4(.250) inch tall, and be located within two (2) inches of valve stem. Tires will be visually checked for condition and must be considered safe by American Off-Road Racing Championship prior to competing. It is highly recommended that all paint be removed from the mounting surfaces of the rim and the hub.
Maximum tire size is 35" Outside Diameter (O.D.). Pressure checked at 18 PSI on rim to be used.
DOT tire classes are restricted to tires that are intended for highway use. All tires must be designed, built, and sold for use on passenger car, SUV or pickup truck ONLY stamped with D.O.T. number.
UTR14 FASTENERS
All nuts, bolts, and component parts on each vehicle's suspension system, chassis and running gear must be secured with Grade 8 or better nuts and bolts and secured with either lock nut, cotter keys or safety wire and have at least one full thread showing through the nut.
STEERING and BRAKE COMPONENTS
UTR15 STEERING
Steering wheel play must be kept to a minimum. Drag link and tie-rod ends must be secured and keyed. Steering must be considered safe by American Off-Road Racing Championship before the vehicle will be permitted to race.
UTR16 BRAKES
Brakes must be in a safe working condition and able to apply adequate braking force to "Lock-up" all four wheels. Turning or steering brakes are allowed unless allowed by class rules.
ELECTRICAL SYSTEM
UTR17 IGNITION
Each vehicle in competition must have a positive action on-off switch in good working order. The switch must be located within easy reach of the driver and marked or labeled "ignition" ON-Off. All electric fuel pump switches must be labeled as "FUEL" and must be accessible to driver and outside personnel.
UTR18 BATTERIES
Batteries must be securely mounted. All batteries mounted in the driver's compartment must be fully enclosed including the sides and bottom of the battery. Batteries will be considered to be located in the driver's compartment if there is not a full bulkhead (firewall) separating the driver and the battery. Regardless of location battery positive terminal must be insulated.
UTR19 LIGHTS
Four-wheel Vehicles
All four-wheel vehicles must have a minimum of two (2) headlights, two (2) brake lights, and two (2) taillights. Taillights must be mounted at least 48 inches from the ground if other than stock. The brake light must be at least 3" in diameter, or seven square inches.. All UTV's must also have two (2) additional rear facing safety lights. One (1) solid amber and one (1) flashing amber All safety lights must be LED with a minimum of 2000 lumens output. All safety lights must be wired directly to the battery switch. All tail lights must be DOT and in operating condition at all times.
All four-wheel vehicles must have a rearward facing amber colored light. Amber lights must be at least 3” diameter and DOT approved. These lights must be connected to the ignition and remain on during the race. Amber lights must be seen 180° and not blocked by tires or parts. The bulb must be 25 to 55 watts, or LED with equivalent lumens as long as it has an amber colored lens. Light must be mounted at least 48 inches off of the ground. The light must be visible from any position aft of the vehicle and must be protected from damage in case of roll over. A light bar that has all the correct lights may fill these requirements.
Rearward facing lights must be in an operational condition before the vehicle will be allowed to start an event. During an event if the light goes out it must be fixed or replaced at the next available pit location before proceeding in the race. Any light that is connected to a switch that allows the vehicle to move in any direction without the light being on will cause that entry to be disqualified.
Not required for short course vehicles.
UTR20 STARTERS
All vehicles must have a battery and a starter capable of starting the engine.
FUEL SYSTEM
Any of the following commercially available gasoline’s, LPG, or diesel fuel may be used:
- Service station type pump fuel.
- Racing gasoline as manufactured.
- Commercial aviation gasoline.
- Natural or Propane Gas.
- Commercially available Ethanol i.e, E85, C85 or C95 is not allowed. No oxygen bearing fuel including alcohol or nitromethane is allowed. Commercially produced, nationally advertised fuel additives may be used only in the quantities specified by the manufacturer and only if a sample of the gasoline with the additive is supplied for inspection to American Off-Road Racing Championship. Fuel samples may be taken at random before, during, and after the event.
UTR22 FUEL TANKS
Safety fuel cells are required for all classes except some noted UTV classes. Auxiliary fuel tanks may be added to a vehicle in all classes except Class 11. Auxiliary fuel tanks must be safety fuel cells. All fuel cells must be securely mounted, filled with foam and vented to the outside of the vehicle, and have a substantial cross-member between the fuel cell and driver in vehicles with rear mounted cells.
UTV classes that allow a stock fuel tank are required to have the tank and all stock components in the stock location.
No GI cans or fuel containers similar in construction or purpose will be allowed in/on any vehicle during a race. Safety fuel cells shall consist of a bladder enclosed in a metal (minimum of .060 thickness) container as follows:
Bladders shall be constructed of nylon or Dacron woven fabric impregnated and coated with a fuel resistant elastomer. Rotary molded polymer cells are not allowed. The minimum standards acceptable for physical properties are:
| Test Type | Minimum Standard | Test Specification |
| Tensile Strength | 450 lbs. | Spec. CCC-T-1916, Method 5102 |
| Tear Strength | 50 lbs. | Spec. CC-T-1916, Method 5134 |
| Puncture Test | 175 lbs. | Spec. Mil-T-6396, Article 4.5.17 |
These physical properties must be maintained throughout all areas of the finished bladder including seams, joints and fittings.
Container
The bladder shall be fully surrounded in a smooth skinned casing. The container shall be made of .060" Aluminum or steel. Other materials may be approved on request. Use of magnesium prohibited.
UTR23 FUEL FILLER LINES, VENTS, and CAPS
Fuel filler lines and caps must be mounted in a location where they cannot be knocked open or torn off of the vehicle. All fillers must be located within frame or body structure so as to prevent opening or damage during a roll-over or accidental impact. Fuel pick-up openings, lines, breather vents, and fuel filler lines shall be designed and installed not to allow spillage under any conditions. Fuel breather lines must have a check valve and in addition the line must be routed around the fuel cell. Fuel tank breathers must be vented outside the driver's compartment to the rear of the vehicle.
All fuel fillers attached to the frame or body must have a flexible coupling to the tank. Positive locking non-vented fuel filler caps are required. A check valve must be incorporated in the fuel tank to prevent fuel escaping if the cap and filler neck are torn from the tank. All fuel fillers must be surrounded with a splash guard or boot designed to direct spilled fuel to the outside of the vehicle away from the driver, engine, and exhaust system when fueling.
ENGINES, TRANSMISSIONS and DRIVELINES
UTR24 ENGINE and ENGINE DISPLACEMENT
See class rules. Engine location and displacement may be inspected at any time. Engines may be sealed or marked by American Off-Road Racing Championship at any event.
UTR25 ENGINE REPLACEMENT
Engine may be replaced during the event. Entrant must notify American Off-Road Racing Championship that engine is being replaced. Engine replacement must be performed at a designated location.
UTR26 TRANSMISSION
Every vehicle in competition must have a functional reverse.
UTR27 THROTTLES
Every vehicle must have a throttle incorporating two (2) positive action return springs with a minimum pull of two (2) pounds each. A positive stop and override prevention system must be used to keep linkage from passing over center and sticking in an open position. Stock OEM is acceptable.
UTR28 EXHAUST
All vehicles are required to be equipped with forestry approved spark arrestor or with approved mufflers. Exhaust system must be installed to direct the exhaust gases out of the body, rearward, behind the driver, away from the fuel tanks and tires, and placed in such a manner that will minimize the producing of dust. Exhaust pipes must extend at least twelve (12) inches to the rear of the driver's compartment.
UTR29 DRIVE SHAFTS
All front engine vehicles with an open drive shaft must have a retainer hoop securely mounted and located within 6" of the front universal joint. The retainer hoop may consist of either a .25" x 2" steel strap, 2" wide nylon webbing, or .750 diameter tubing. Hoop or strap must be securely attached to a body or frame member.
UTR30 FLYWHEEL SHIELDS
All front engine vehicles with standard transmissions must have a SEMA-approved bell housing or cover. All front engine vehicles with an automatic transmission must have a scatter shield or scatter blanket.
UTR31 FLUID COOLERS
Oil coolers, transmission coolers, and radiators mounted ahead of the driver or in the passenger compartment must have a shroud behind the cooler that will prevent liquids from the cooler or its lines from blowing back onto the driver or co-driver. All hoses that run through the passenger compartment must be shielded.
UTR32 AUXILIARY EQUIPMENT
A generator, fan, water pump (water-cooled engines), and a complete functional electrical system must be connected and in operation at the start of race.
UTR33 SUPERCHARGERS and TURBOCHARGERS
Superchargers and turbochargers are only allowed in those classes noted. Diesel or gasoline engines in stock classes which utilize stock turbochargers may be approved on an individual basis.
VEHICLE SAFETY EQUIPMENT
UTR34 ROLL CAGES
All vehicles must be equipped with a roll cage. Stock UTV cages are not allowed. Minimum design and tubing size based on seamless 4130 chromoly tubing or ASTM 1018/1026 CDS/DOM. All bolt together cage adapters must be welded together. No aluminum or other nonferrous material permitted. A-pillar support tube mandatory.
Material
Material for roll cage construction must be 4130 chromoly tubing or ASTM 1018/1026 CDS/DOM.
All welding must be of the highest quality with full penetration and no undercutting of the parent metal. All welds shall conform to the American Welding Society D1.1, Structural Welding Code, Chapter 10, Tubular Structures and Standards for the material used. It is strongly recommended that the welder inspect all welds using magnetic iron powder or die-penetrate testing.
All tubes must be welded 360-degrees around the circumference of the tube. All bolt together cage adapters must be welded together. No oxy-acetylene brazing or welding allowed.
None of the tubing may show any signs of crimping or wall failure. All bends must be mandrel type. The center radius of the bends may not be less than three (3) times the outside diameter of the roll cage tubing.
Roll Cage Tubing Sizes
For the purposes of determining roll bar tubing sizes, vehicle weight is as raced, but without fuel and driver. Note: There is an allowance of minus 0.010 inches on all tubing thicknesses. Minimum tubing size for the roll cage is:
Up to 2000 lbs: 1.500” x 0.095” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
2001 - 2500 lbs: 1.500” x 0.120” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
2501 - 3000 lbs: 1.750” x 0.095” Cond N/4130/Seamless or ASTM 1018/1026 CDS/DOM
Roll Cage tube size will be determined by the weight of the race vehicle as race ready (sitting on the starting line.) With all spares, tools, etc, full of fuel. Driver and co-drivers are not included in the gross weight.
Construction Procedures
Cages must be securely mounted to the frame or body and gusseted and braced at all points of intersection. Cab or body mounted cages must not be attached to the body structure by direct welding, but must be bolted through and attached by the use of doubler plates (one on either side) with a minimum thickness of 3/16(.187) inch. Where bolt and nuts are used the bolts shall be at least 3/8 (.375) inch diameter SAE Grade 8 or equivalent. Roll cage terminal ends must be located to a frame or body structure that will support maximum impact and not shear. Minimum material dimension requirements for roll cages apply to the following members of the roll cage:
- Front and rear hoop or side lateral tubes
- Front and rear interconnecting bars
- Rear down braces
- Lateral bracing
- Elbow and door bars
- Lower A-pillar tubes, and lower B-pillar tubes
Figure 1: The illustration provided is an example of acceptable cage design.
Actual tube locations may vary from illustration (Locations and sizes subject to American Off-Road Racing Championship approval).
Desert UTV Roll Cage Design (Figure 1):
- Red tubes must be size required by weight.
- Yellow tubes may be one tube size smaller than required size.
All roll cages must be constructed with at least one (1) front hoop (top of cage to floor), one (1) rear hoop (top of cage to floor), or two (2) side lateral hoops, two (2) interconnecting top bars, two (2) rear down braces and one (1) diagonal brace and necessary gussets. If the front and/or rear hoop terminate at elbow/door bar, lower A-pillar and/or B-pillar must be made of the same tubing size as roll cage. Upper main, front, rear, and lateral roll bar hoops must be made in one piece without joints. Centerlines of all required tubes must converge at intersections.
Any vehicle that is not equipped with stock steel doors for driver and co-driver must have sidebars, at least one on each side that will protect the occupants from side impact. Side bars must be parallel to the ground and be located vertically in relation to the occupants to provide maximum protection without causing difficulty in entering or exiting the vehicle. The sidebars must be constructed of tubing of the same material and dimensions as the roll cage. Additional side tubes may be required to limit cockpit intrusion, additional tubes must be of the same size tubing as the roll cage. Tubes must be placed in such a manner as to limit openings adjacent to the occupants. Maximum opening size in this area is limited to 370 square inches.
All roll cage bars must be at least 3” in any direction from the driver and co-driver’s helmets in their normal driving positions.
Gussets must be installed at all main intersections on the main cage including diagonal and rear down braces, and where single weld fractures can affect driver’s safety. Gussets may be constructed of .125” X 3” X 3” flat plate, split, formed and welded corner tubing, or tubing gussets the same thickness as the main cage material. Rear down braces and diagonal braces must angle no less than 30 degrees from vertical.
Head/neck restraints designed to prevent whiplash are required on all vehicles. These restraints must be a headrest of approximately 36 square inches, with a resilient padding at least 2” thick. Any portion of the roll bar or bracing which might come in contact with the helmet must be padded.
Figure 3: The illustration provided is an example of acceptable cage design.
Actual tube locations may vary from illustration (Locations and sizes subject to American Off-Road Racing Championship approval).
Youth 1000/570 UTV (Figure 3):
Minimum roll cage tubing diameter and thickness requirements are shown in the drawings at the end of the UTV class rules. Minimum tubing diameter and thickness are:
- Red tubes are required to have a minimum of 1.5” x .095” tubing
- Blue tubes are required to have a minimum of 1.5” x .095” tubing
- Yellow tubes are required to have a minimum of 1.25” x .095” tubing
1 ½ inch x .095 inch minimum 4130 Chromoly or DOM tubing is required for the main roll cage.
2-seat cars: Top of roll cage above driver’s head must have either an ‘X’ or a front to back center bar with a single diagonal above the driver’s head
RS1 cars: Top of roll cage above the driver’s head must have a diagonal brace.
Figure 4: The illustration provided is an example of acceptable cage design.
Actual tube locations may vary from illustration (Locations and sizes subject to American Off-Road Racing Championship approval).
RZR 170/200/250 (Figure 4):
Minimum tubing diameter and thickness are:
- Red tubes are required to have a minimum of 1.25” x 095” tubing
- Blue tubes are required to have a minimum of 1.25” x .083” tubing
- Yellow tubes are required to have a minimum of 1” x .083” tubing
Minimum roll cage tubing diameter and thickness requirements are shown in the drawings at the end of the UTV class rules.
Top of the roll cage above the driver's head must have either an ‘X’ or a front to back center bar.
UTR35 SAFETY HARNESS
All vehicles except Motorcycles and ATV's must have a heavy-duty type five-point fast release (no push button or quick release type) seat belt and shoulder harness with metal-to-metal buckles and connectors for each occupant. Harnesses must have SFI Foundation's 16.1 or 16.5 labels and expiration date labels. The single antisubmarine strap of the five-point system shall be attached so that it will exert maximum restraint to the upward movement of the belt and harness. The five-point system consists of a 2" seat belt, a 2" antisubmarine belt, and two 2" shoulder straps. No "Y" type shoulder belts. All belts must show manufacturer's name, month, and year of manufacture. All belts must be changed after three (2) years of date of manufacture. American Off-Road Racing Championship recommends all belts be changed after one (1) year of use. Harness materials shall be nylon or Dacron polyester and in new or perfect condition with no cuts or frayed layers, chemical stains, or excessive dirt.
Shoulder harness should be mounted behind the driver/co-driver. The recommended mounting point is approximately 4" below the top of the shoulder. Lap belts should be kept at a minimum at least 2.5" forward of seat and backrest intersection. All belts must be mounted directly to a main structure member of the same size specification as the roll cage and with gussets. All adjustment buckles should be kept at a minimum distance of 1.5" from the seat to prevent accidental loosening or chafing. Mounting hardware must utilize at least 3/8(.375) inch grade 8 steel bolts with 1.5" diameter washers attached through body or frame using lock nuts or cotter key. All belt hardware must be safety wired.
Where slip buckles ("E" rings) are used, they must be doubled up. Example two (2) slip rings per connection.
UTR36 SAFETY NETS
Safety nets are mandatory on all enclosed vehicles and must cover the complete open area of side window openings. Safety nets are required with or without side glass and must be labeled SFI 27.1. The net must be fastened every 6 inches around the outside of the net. Fixed corners must be fastened with metal fasteners i.e., hose clamps, Adel clamps, bolts etc. The net border or edge and tie downs shall be made of materials that are as strong or stronger than the netting itself. Acceptable methods of tying the nets into the vehicle include, but are not limited to: hose clamps, snaps, nylon ties, Velcro, metal hooks and steel rods.
Rod must be made from a minimum of 1/2-inch solid steel and go 1 inch through the upper rear mounting tab. 1/2- inch rod top and bottom. No fixed upper rods. • All window net mounts must be welded to the roll cage. The window net, when in closed position, must fit tight and be secured with a safety belt type of latch. Push button latches are not allowed. Spring type mounting of nets on the top or bottom is not permitted.
Nets shall be installed so that the driver and/or co-driver can release the netting and exit the vehicle unassisted regardless of vehicle position. Net installation must meet with the approval of the chief technical inspector.
Netting must be installed on the inside of the roll cage bars so that it will not be damaged or come off the car in the event of a roll-over or slide on the side. All nets must have no more than a 1inch gap on all borders to contain hands and fingers inside the vehicle. Nets attached to the door frame, or attached to an opening frame covering the entire opening are approved as long as the door/frame is equipped with a secondary latching device.
UTR37 SEATING
Only seats manufactured for racing will be allowed. All stock seats must be removed. All seats must be securely mounted using minimum 3/8(.375) inch grade 8 hardware. Adjustable track type seats must be securely fastened so as to allow no vertical or lateral motion. If stock type seat runners are used, they must be clamped to the floor with a minimum of two (2) U-bolts per rail and have 1" diameter washers on the underside. Head and neck restraints are mandatory. Low back seats are not allowed.
GENERAL VEHICLE COMPONENTS
UTR38 DRIVER'S COMPARTMENT
Driver and/or co-driver are to enter and exit the driving compartment unassisted with ease, with the vehicle in any position. The driving compartment must be separated by firewalls or bulkheads from any acids or fuels. The roof shall also be covered with sheet metal or sheet aluminum (minimum thickness .080 inch) covering all areas. No items inside the driving compartment should be a danger to the occupants, and is subject to Technical Director’s approval.
UTR39 DOORS and LATCHES
All vehicles with operable doors must have positive locking mechanisms, and must have a secondary latching device.
UTR40 FIREWALLS
All vehicles must utilize an all-metal firewall to separate the driver's compartment from any dangers. Firewalls will keep occupants protected from, fire from the engine and any fuel supplies, any fluids hot or cold. A minimum firewall must extend from the driver's shoulder height to the vehicle floor and body. Maximum gap around any item is 1/16(.062) inch. If rear mounted safety fuel cell is higher than shoulder height, the firewall must be extended at least two inches above the fuel cell.
UTR41 BALLAST
Any material used for the purpose of adding weight to meet minimum weight requirements, must be properly attached to the vehicle's structure. Any material added to make minimum weight requirements must also have holes drilled in material so that it may be sealed to a non- removable structure member.
UTR42 WEIGHT
Vehicle race weight shall be considered dry weight. (Dry weight is with all fuel tanks drained.) Tools, spare tires, and parts removed, but otherwise the vehicle must be race ready. Some classes are wet weight including driver. Official weight will be considered weight shown on official scales.
UTR43 FLOORBOARDS
Floorboards or belly pans are required on all vehicles and must be held on by a minimum of six (6) .25" bolts per side if the floor is not an integral part of the body or chassis. Floorboards must cover the entire area from the front of the pedal assembly to the back of the seat(s) and from outside edge to outside edge on the sides. Floorboards will protect occupants from dust and debris.
UTR44 BUMPERS and HAZARDOUS PROTRUSIONS
No hazardous front or rear bumpers, nerf bars, frame ends or other protruding objects from the vehicles are allowed. All ends must be rounded and capped off. No sharp corners or hazardous protrusions. All vehicles must be equipped with safe front and rear bumpers.
UTR45 MIRRORS
A rear-view mirror is required on all. Mirrors are subject to Technical Directors approval.
UTR46 SKID PLATES
Open. Skid plates designed to protect the front suspension, steering, and brake components are required on all vehicles. Skid plates must be designed of metal and be securely mounted.
UTR47 STORAGE
All spare parts and extra equipment carried on or in a vehicle must be securely fastened to prevent their movement.
UTR48 CHASSIS and BODY
All body components shall remain on the vehicle (accidental damage excluded) during the entire event. Body/chassis series must be maintained with body/chassis combinations. as specified in individual class rules.
Fenders must be securely attached to the vehicle if required. The removal of fenders not damaged during the race, after the race has started, will cause the vehicle to be disqualified.
UTR49 HOSES
All hoses including metal lines and fittings must be securely clamped and/or safety wired in place.
UTR50 IDENTIFICATION MARKINGS
American Off-Road Racing Championship will assign race numbers.
All vehicles in competition must be identified with the correct vehicle number displayed according to the following rules.
All numbers must be displayed on a contrasting background. Number plate background will be distinguishable from the color of the vehicle.
Sportsman classes must have black numbers on a yellow background.
American Off-Road Racing Championship assumes no responsibility for scoring vehicles that have unrecognizable identification numbers. It is the driver's responsibility to keep numbers recognizable at all times during the event.
Four-wheel Vehicles
- Visible from both sides of the vehicle, one (1) number per side. Numbers must be a minimum of 10" high with a minimum 1" wide stroke.
- Visible from the rear, one (1) number. Numbers must be a minimum of 6" high with a 1" wide stroke.
- Visible from the front, one (1) number upper left Driver's Side visor area. Numbers must be a minimum of 4" high.
- Visible from above, one (1) number. Numbers must be a minimum of 8" high with a 1" wide stroke.
PIT-SUPPORT VEHICLES
All pit-support vehicles will have a minimum 4-inch high white number of race vehicle on both sides of vehicle on side windows, on upper passenger-side corner of front windshield and on rear window. Pit support vehicles must have a current American Off-Road Racing Championship pit pass attached to lower passenger side portion of the front windshield.
UTR51 ADVERTISING on VEHICLES
Advertisements may be displayed on vehicles provided they are in good taste and do not interfere with identification marks.
UTR52 RADIO EQUIPMENT
Race vehicle/support vehicle radio equipment and or broad casts may not at anytime interfere with Race Communications.
UTR53 WORKMANSHIP
All construction, modifications and alterations must be performed in a workmanlike manner. Meet all rules and regulations and is subject to American Off-Road Racing Championship approval.
UTR54 TRACKING DEVICE
All vehicles will be mandated to run a GPS tracking/scoring device designated by American Off-Road Racing Championship.
Technical regulations apply to all classes unless otherwise noted in class regulations. Class requirements or safety regulations that are class specific may take precedence over technical regulations.
If class rules specifically state that a modification or optional equipment is allowed, it will be allowed. American Off-Road Racing Championship's intent when prescribing specifications for safety equipment for vehicles/entrants that will compete under American Off-Road Racing Championship rules is to provide protection to all entrants, crew members, officials, and spectators.
American Off-Road Racing Championship does not intend to restrict the general or specific design of any vehicle, but does encourage all entrants to give full attention to safety requirements.
Any deviation from the technical rules at any American Off-Road Racing Championship promoted or sanctioned event will be contingent upon the approval of American Off-Road Racing Championship in writing in advance of the event.
When operating vehicles on the race course, at any time, entrants must use an approved helmet, protective clothing, eye protection, and safety equipment.
SAFETY EQUIPMENT
MTR1 HELMETS
Motorcycle and ATV’s must meet the following requirements:
- Snell memorial foundation, with a legible Snell sticker attached:
- M2020D
- M2020R
- M2025D
- M2025R
- FIA standard, with a legible sticker attached:
- 8860-2018
- 8860-2018-ABP
- 8860-2010
- 8859-2024
- ECE 22-05
- ECE 22-06
American Off-Road Racing Championship recommends each helmet be labeled (painted) with the driver/rider’s name, blood type, allergies, or any other medical information. Left hand side of the helmet must be free of all stickers. Straps must have "D" rings, no snaps or Velcro.
As of January 1st 2026, M2015, FIA 8860-2004, FIA 8859-2015 helmets will no longer be allowed.
MTR2 PROTECTIVE CLOTHING
Full-length boots, gloves, goggles, shoulder pads, chest protectors, and padded trousers are required items.
MTR3 EYE PROTECTION and DENTURES
Shatter resistant eye protection is required for all occupants competing in/on vehicles without full windshields. Those competing in closed cockpit vehicles must have eye protection available in the event the windshield is knocked out or broken.
It is highly recommended that entrants with removable dentures remove them prior to competing in an off-road event.
MTR5 FIRST AID KIT
Each rider must carry a suitable, weatherproof, emergency kit composed of individually packaged units. Each individual unit must contain at least the following items:
(1) - 4" Bandage Compress
(1) - Eye Dressing Packet
(8) - 2" x 3" Adhesive Pads
(8) - 1" x 3.375" Bandages
(1) - 8cc Antiseptic
MTR8 REFLECTORS
All vehicles must have 1 Motorcycles and Quads 2" minimum diameter red reflectors on the rear of the vehicle and/or helmet. LED lights are not reflective and do not fulfill this rule.
MTR10 SURVIVAL SUPPLIES
All vehicles competing in long course events must carry at least two days of survival supplies and at least one (1) quart of water or other suitable liquid for each occupant/rider.
Not required for short course vehicles.
SUSPENSION COMPONENTS
MTR14 FASTENERS
All nuts, bolts, and component parts on each vehicle's suspension system, chassis and running gear must be secured with Grade 8 or better nuts and bolts and secured with either lock nut, cotter keys or safety wire and have at least one full thread showing through the nut.
STEERING and BRAKE COMPONENTS
MTR15 STEERING
Steering must be considered safe by American Off-Road Racing Championship before the vehicle will be permitted to race.
MTR16 BRAKES
Brakes must be in a safe working condition and able to apply adequate braking force to "Lock-up" both wheels.
ELECTRICAL SYSTEM
MTR17 IGNITION
Each vehicle in competition must have a positive action on-off switch in good working order. The switch must be located within easy reach of the rider and marked or labeled "ignition" ON-Off.
MTR18 BATTERIES
Batteries must be securely mounted. Regardless of location, the battery positive terminal must be insulated.
MTR19 LIGHTS
All Motorcycles and Quads must also have a minimum of one (1) headlight and one (1) taillight. Headlights are only required if racing after sunset or before sunrise. All lights must be in operating condition at all times. Taillights must be on during the entire race. Tail light must be either powered by the Motorcycle or Quad AC generating system or be a American Off-Road Racing Championship approved battery powered unit capable of operating for the entire event.
FUEL SYSTEM
MTR21 FUEL
Any of the following commercially available gasoline’s, LPG, or diesel fuel may be used:
- Service station type pump fuel.
- Racing gasoline as manufactured.
- Commercial aviation gasoline.
- Natural or Propane Gas.
- Commercially available Ethanol i.e., E85, C85 or C95 is allowed. No oxygen bearing fuel including alcohol or nitromethane is allowed. Commercially produced, nationally advertised fuel additives may be used only in the quantities specified by the manufacturer and only if a sample of the gasoline with the additive is supplied for inspection to American Off-Road Racing Championship. Fuel samples may be taken at random before, during, and after the event.
MTR22 FUEL TANKS
MTR23 FUEL FILLER LINES, VENTS, and CAPS
Fuel filler lines and caps must be mounted in a location where they cannot be knocked open or torn off of the vehicle. Fuel pick-up openings, lines, breather vents, and fuel filler lines shall be designed and installed not to allow spillage under any conditions. Fuel breather lines must have a check valve and in addition the line must be routed around the fuel cell.
Positive locking fuel filler caps are required.
ENGINES, TRANSMISSIONS and DRIVELINES
MTR24 ENGINE and ENGINE DISPLACEMENT
See class rules. Engine location and displacement may be inspected at any time. Engines may be sealed or marked by American Off-Road Racing Championship at any event.
MTR25 ENGINE REPLACEMENT
Engine may be replaced during the event. Entrant must notify American Off-Road Racing Championship that engine is being replaced. Engine replacement must be performed at a designated location.
MTR26 TRANSMISSION
MTR27 THROTTLES
MTR28 EXHAUST
All vehicles are required to be equipped with forestry approved spark arrestor or with approved mufflers. Exhaust system must be installed to direct the exhaust gases rearward, behind the rider, away from the fuel tanks and tires, and placed in such a manner that will minimize the production of dust.
MTR31 FLUID COOLERS
Oil coolers, transmission coolers, and radiators mounted ahead of the rider must have a shroud behind the cooler that will prevent liquids from the cooler or its lines from blowing back onto the rider.
MTR32 AUXILIARY EQUIPMENT
MTR49 HOSES
All hoses including metal lines and fittings must be securely clamped and/or safety wired in place.
MTR50 IDENTIFICATION MARKINGS
- Visible from the side, one (1) number per side on both sides of the rear wheel. Numbers must be a minimum of 6" high with a minimum 1" stroke width and attached to a number plate of sufficient size to accommodate them.
- Visible from the front, one (1) number. Numbers must be a minimum of 6" high with a 1" stroke width and attached to a number plate of sufficient size to accommodate them.
- A blank space (21⁄2" high by 8" width minimum) anywhere on the vehicle must be left.
- Any letters used for identification purposes by American Off-Road Racing Championship in your number may be 1/2 the size of the number.
PIT-SUPPORT VEHICLES
All pit-support vehicles will have a minimum 4-inch-high white number of race vehicles on both sides of the vehicle on side windows, on upper passenger-side corner of front windshield and on rear window. Pit support vehicles must have a current American Off-Road Racing Championship pit pass attached to the lower passenger side portion of the front windshield.
MTR51 ADVERTISING on VEHICLES
Advertisements may be displayed on vehicles provided they are in good taste and do not interfere with identification marks.
MTR52 RADIO EQUIPMENT
Race vehicle/support vehicle radio equipment and or broad casts may not at anytime interfere with Race Communications.
MTR53 WORKMANSHIP
All construction, modifications and alterations must be performed in a workmanlike manner. Meet all rules and regulations and is subject to American Off-Road Racing Championship approval.
MTR54 TRACKING DEVICE
All vehicles will be mandated to run a GPS tracking/scoring device designated by American Off-Road Racing Championship.
American Off-Road Racing Championship has opened up the availability of motors in all limited engine classes to create a more competitive atmosphere for both performance and pricing.
All of the following motors have been approved by American Off-Road Racing Championship to compete:
- Turnkey Engines
- Redline Performance
- Wiks Racing Engine
- Roush Competition Engines
- Danzio Performance
- Lozano Performance
- CBM Motorsports
- Major Performance
- Dougans Racing Engines
- Moruzzi Race Motors
Sealed GM LS3 or GM 525RLB engine rebuilders:
- Wiks Racing Engines
- Roush Competition Engines
- Klein Engines
Any other engine builders interested please contact us at tech@unlimitedoffroadracing.com
2026 AORC Class Regulations:
The TR abbreviations listed under this class (I.E. TR1 HELMETS) refer to TR cross reference listings in the front of this book. These TR cross-referenced listings are part of the class rules. Where a conflict occurs between the TR cross-referenced listing and a rule contained under this class, the rule contained under this class takes priority.
Unlimited Truck Legends
L01 - L99
Unlimited vehicles with truck or SUV body. Drivers over the age of 50.
Class 1 SPEC / 6200
6200 - 6299
Unlimited 4 wheel, single and two seat vehicles. Limited to IRS. No straight axle suspension.
Pre-Runner Class
P001 - P299
This class is only available at The Mint 400 and open to all Driver of Records racing in the Unlimited Race on Saturday.
TrophyLite
6000 - 6099
Purpose built SPEC race truck, 4 cylinder engine, SPEC suspension, parts and bodies.
Class 3000
3000 - 3099
Limited two(2) or three(3) seat mini or mid-sized vehicle. Engine is limited to sealed SPEC.
Jeepspeed Trophy
4700 - 4799
Identical to Jeepspeed Outlaws but with open class specific exceptions.
Jeepspeed Outlaws
3700 - 3799
Jeep or Dodge sport utility vehicles and light trucks with original frame.
Class 2000
2000 - 2099
Production mini or full-size truck. Production steel body and doors must be used.
Jeepspeed Cup
2700 - 2799
Jeep and Dodge vehicles that maintain the original appearance and profile.
Modern Vintage
V300 - V399
Vintage Trucks, Buggies and Heavy Metal Vehicles built/raced before and including 1995.
Class 9 Challenger
900 - 999
Single and two seat vehicles with a maximum wheelbase of 100". Vehicle parts are based on a Type I VW.
Scrambler Sportsman Motorcycle
SC01 - SC99
750cc or larger, Max 2 Riders. Ducati Scrambler, Triumph Scrambler, Indian FTR Scrambler and HD Pan America.
| Class Name | Numbers | Category | Class Description |
|---|---|---|---|
| Unlimited Truck (4WD) | 1-99 | Car/Truck | Four-Wheel Drive Unlimited vehicles with truck or SUV body. |
| Unlimited Truck (2WD) | 1 - 99 | Car/Truck | Two-Wheel Drive Unlimited vehicles with truck or SUV body. |
| Class 1 Unlimited | 100U-199U | Car/Truck | Unlimited Two or Four Wheel Drive Open Wheel Vehicle |
| Class 1 | 100-199 | Car/Truck | Unlimited open wheel vehicles |
| Unlimited Truck SPEC | 200 - 299 | Car/Truck | Unlimited chassis and suspension truck or SUV with limited engine. |
| Unlimited Truck Legends | L1-L99 | Car/Truck | Unlimited vehicles with truck or SUV body. Drivers over the age of 50. |
| Class 1 SPEC / 6200 | 6200 - 6299 | Car/Truck | Unlimited 4 wheel, single and two seat vehicles. Limited to IRS. No straight axle suspension. |
| Class 8 | 800 - 849 | Car/Truck | Limited Full Size truck or SUV |
| R400: Unlimited | 4400 - 4499 | Rock | Unlimited |
| Class 7 | 700 - 799 | Car/Truck | Unlimited chassis Mini or Mid size truck or SUV. Maximum six cylinder engine. |
| Pre-Runner Class | PR1 - PR299 | Car/Truck | This class is only available at The Mint 400 and open to all Driver of Records racing in the Unlimited Race on Saturday. |
| UTV Pro | T1 - T999 | UTV Desert | Maximum engine size: 2000cc NA, 1000cc Turbo |
| Class 10 | 1000 - 1099 | Car/Truck | Unlimited open wheel vehicles with limited engine. |
| UTV Pro Turbo | B1 - B999 | UTV Desert | Non R/H2 vehicles. Maximum engine size: 1000cc Turbo, 40mm max |
| UTV Pro NA | R1 - R999 | UTV Desert | Non R/H2 vehicles. Maximum engine size: 1000cc NA |
| UTV Pro Stock Modified | Z1-Z999 | UTV Desert | Maximum engine size: 2000cc NA, 1000cc Turbo |
| UTV Pro Stock | S1-S999 | UTV Desert | Maximum engine size: 2000cc NA, 1000cc Turbo |
| R900: Pro Open UTV | O4900 - O4999 | UTV Rock | Open UTV |
| R900: Pro Modified UTV | M4900 - M4999 | UTV Rock | Pro Modified UTV |
| Class 5 Unlimited | 500 - 549 | Car/Truck | Unlimited Baja Bug |
| TrophyLite | 6000 - 6099 | Car/Truck | Purpose built SPEC race truck, 4 cylinder engine, SPEC suspension, parts and bodies. |
| Class 3000 | 3000 - 3099 | Car/Truck | Limited two(2) or three(3) seat mini or mid-sized vehicle. Engine is limited to sealed SPEC. |
| Class 12 | 1200 - 1299 | Car/Truck | Limited Open Wheel Vehicle |
| 1/2 1600 | 1600 - 1699 | Car/Truck | Limited chassis, limited engine open wheel vehicle. |
| Jeepspeed Trophy | 4700 - 4799 | Car/Truck | Identical to Jeepspeed Outlaws but with open class specific exceptions. |
| Jeepspeed Outlaws | 3700 - 3799 | Car/Truck | Jeep or Dodge sport utility vehicles and light trucks with original frame. |
| Class 1450 | 1400 - 1499 | Car/Truck | Open production full sized or mini truck. Must have production steel body. |
| Class 2000 | 2000 - 2099 | Car/Truck | Production mini or full-size truck. Production steel body and doors must be used. |
| UTV Stock Modified | UM900-UM999 | UTV Desert | Maximum engine size: 2000cc NA, 1000cc Turbo |
| UTV Stock | U1 - U999 | UTV Desert | Non R/H2 vehicles. Maximum engine size: 1000cc NA or Turbo, 40mm max |
| UTV Sportsman | US1 - U999 | UTV Desert | Maximum engine size: 2000cc NA, 1000cc Turbo |
| R900: UTV Stock | S4900 - S4999 | UTV Rock | Stock |
| UTV EV/Hybrid | E1 - E999 | UTV Desert | Non R/H2 vehicles. Must be EV or Hybrid |
| Class 7F | 700F - 739F | Car/Truck | Class rules coming soon... |
| Class 7S | 7100 - 7199 | Car/Truck | Limited Mini or Mid size truck or SUV Sportsman |
| Jeepspeed Cup | 2700 - 2799 | Car/Truck | Jeep and Dodge vehicles that maintain the original appearance and profile. |
| Jeepspeed Challenge | 1700 - 1799 | Car/Truck | Short wheel base Jeeps with 6 Cylinder and 4 cylinder engines. |
| R500: Modified | 4500 - 4599 | Rock | Modified |
| R600: Stock Class | 4600 - 4699 | Rock | Stock |
| R800: Legends | 4800 - 4899 | Rock | Legends |
| 5-1600 | 550 - 599 | Car/Truck | Limited Baja Bug |
| Modern Vintage | V300 - V399 | Car/Truck | Vintage Trucks, Buggies and Heavy Metal Vehicles built/raced before and including 1995. |
| Vintage Open | V200 - V299 | Car/Truck | Race cars 1989 and older. |
| Vintage | V100 - V199 | Car/Truck | Race cars 1982 and older. |
| Stock Production Truck Mini/Mid | 7300 - 7399 | Car/Truck | Stock Production Mini or Mid size truck or SUV. |
| Stock Production Truck Full | 850 - 899 | Car/Truck | Stock Production Full size truck or SUV |
| Open Sportsman | 8100 - 8199 | Car/Truck | Unlimited Vehicle Sportsman Class. |
| Class 9 Challenger | 900 - 999 | Car/Truck | Single and two seat vehicles with a maximum wheelbase of 100". Vehicle parts are based on a Type I VW. |
| Class 11 | 1100 - 1199 | Car/Truck | Stock Production VW Bug |
| EV Unlimited | EV300 - EV399 | Car/Truck | Open EV |
| EV Open Production | EV200 - EV299 | Car/Truck | Open Production EV Truck/SUV |
| EV Production | EV100 - EV199 | Car/Truck | Stock Production EV Truck/SUV |
| Hybrid Unlimited | H300 - H399 | Car/Truck | Open Hybrid |
| Hybrid Open Production | H200 - H299 | Car/Truck | Open Production Hybrid Truck/SUV |
| Hybrid Production | H100 - H199 | Car/Truck | Stock Production Hybrid Truck/SUV |
| Modern Military | M1 - M99 | Car/Truck | TBD |
| Vintage Military | M100 - M199 | Car/Truck | TBD |
| Gambler 500/Hooptie X Modified | G01 - G99 | Car/Truck | Modified Gambler 500/Hooptie X vehicle |
| Open Pro Motorcycle | N1 - N99 | Motorcycle | Open |
| 399 Pro Motorcycle | X1 - X99 | Up to 399cc | |
| Lites Pro Motorcycle | A1 - A99 | Up to 250cc | |
| Ironman Pro Motorcycle | J1 - J99 | Open | |
| Over 30 Pro Motorcycle | P1 - P99 | Open | |
| Over 40 Pro Motorcycle | C1 - C99 | Open | |
| Quad Pro | Q1 - Q99 | Open | |
| Open Expert Motorcycle | 301 - 350 | Open | |
| 399 Expert Motorcycle | X101 - X199 | Up to 399cc | |
| Lites Expert Motorcycle | K101 - K150 | Up to 250cc | |
| Ironman Expert Motorcycle | O1 - O50 | Open | |
| Over 30 Expert Motorcycle | M501 - M599 | Open | |
| Over 40 Expert Motorcycle | M701 - M799 | Open | |
| Over 50 Expert Motorcycle | M801 - M899 | Open | |
| Over 60 Expert Motorcycle | M901 - M999 | Open | |
| Women’s Expert Motorcycle | W1 - W99 | Open | |
| Family Expert Motorcycle | F1 - F99 | Open | |
| Quad Expert | 401 - 450 | Open | |
| Quad IM Expert | 601 - 699 | Open | |
| Open Amateur Motorcycle | 351 - 399 | Open | |
| 399 Amateur Motorcycle | X201 - X299 | Up to 399cc | |
| Ironman Amateur Motorcycle | O51 - O99 | Open | |
| EV Motorcycle | EM1 - EM99 | Motorcycle | EV, Max 3 Riders |
| 1974 & Down Sportsman Motorcycle | VM1 - VM99 | Motorcycle | Any cc, Max 2 Riders |
| 1975-1982 Sportsman Motorcycle | VM100 - VM199 | Motorcycle | Any cc, Max 2 Riders |
| 1983-1995 Sportsman Motorcycle | VM200 - VM299 | Motorcycle | Any cc, Max 2 Riders |
| Scrambler Sportsman Motorcycle | SC01 - SC99 | Motorcycle | 750cc or larger, Max 2 Riders. Ducati Scrambler, Triumph Scrambler, Indian FTR Scrambler and HD Pan America. |
| Hooligan Sportsman Motorcycle | H01 - H99 | Motorcycle | 750cc or larger, Max 2 Riders. Harley Sportster only. |
| Adventure Bike Sportsman Motorcycle | AB1 - AB99 | Motorcycle | 640cc & Up, Max 2 Riders |
| Youth 1000 | Y1000 - Y1999 | Youth | Limited Youth Normally Aspirated 1000 UTV |
| Youth 570 | Y500 - Y599 | Youth | Youth 570cc UTV |
| Youth 250 | Y200 - Y299 | Youth | Unlimited Youth 250 UTV |
| Youth 200 | L200 - L299 | Youth | Limited Youth 200 UTV |
| Youth 170 Open | YO1 - YO199 | Youth | Limited Youth 170 UTV |
| Youth 170 Production | Y1 - Y199 | Youth | Limited Youth 170 UTV |