c. Spaceframe Vehicles. Must comply with Arts. 11.4. a – c above. 15.2. All ROPS must comply with Arts. 12.1 – 12.5 above.
15.3. All Vehicles must have hand-held fire extinguisher complying with Ch. 7 App. 6 Art. 3 and tanks, fillers, vents and caps must confirm with Ch. 7 App. 4 Art. 2.
15.4. All Vehicles must have a minimum of 4-point safety belt in accordance with Ch. 7 App. 7 Art. 7. 15.5. Fitment of an external circuit breaker in accordance with Ch. 7 App. 5 Art. 5 is recommended. 15.6. If a windscreen is fitted it must be of either laminated glass or plastic of a minimum thickness of 4mm. 15.7. If a plastic windscreen is perforated for viewing purposes goggles or visors must be worn.
15.8. A Passenger grab rail / handle or strap should be fitted in front of the Passenger and where fitted must be constructed and installed so as not to compromise the safety of the Crew.
16. Challenge Events
16.1. All open or soft top Vehicles must comply with Safety Criteria Ch. 7 App. 13 Diagram 10 or rear stays to Ch. 7 App. 3 Art. 22 per Ch. 7 App. 13 Diagrams 53, 50 or 38.
16.2. All Vehicles with manufacturer’ s hard top or truck cab are recommended to adopt Safety Criteria in Ch. 7 App. 3 Art. 22 relating to Series Production or Touring or Sports Cars and to have minimum rollover hoop with rearward stays per Ch. 7 App. 13 Diagram 10.
16.3. All Vehicles must have a hand-held fire extinguisher complying with Ch. 7 App. 6 Art. 3 and tanks, fillers, vents and caps must conform with Ch. 7 App. 4 Art. 2.
16.4. All Vehicles must have a minimum 3-point safety belt in conformity with Ch. 7 App. 7 Art. 6. 16.5. If a windscreen is fitted it must be of either laminated glass or plastic of a minimum thickness of 4mm. 16.6. If a plastic windscreen is perforated for viewing purposes goggles or visors must be worn.
16.7. Where a windscreen and / or rear window is not fitted to Art. 16.5 above a full width wire mesh is mandatory of a 2in maximum square aperture and a minimum 10g weld-mesh and must be securely fitted.
16.8. All Vehicles must carry a Small Spill Kit capable of absorbing minor spillages up to 1.25 litres of all Vehicle fluids. Used Spill Kits are to be disposed of in accordance with local or National guidelines.
17. Road Legal Challenge Vehicle
17.1. Road Legal Challenge Vehicles must fully comply with C & U Regulations in all respects. Official Documents may not relax this requirement.
17.2. Vehicles must comply with Art. 2.4 of this Appendix( mudguards). 17.3. Vehicles must not be fitted with“ Tree Wires” nor carry equipment on the front bumper nor front bodywork. 17.4. Any Vehicle not complying with the above shall be deemed a Challenge Special.
18. Challenge Special
18.1. All Vehicles must be fitted with a circuit breaker( s) which isolates the battery from all electrical circuits which simultaneously stops the engine and which is operable by the driver whilst correctly seated. An external circuit breaker in compliance with the provisions of Ch. 7 App. 5 Art. 5 is recommended. Vehicles fitted with electric winches may use a second isolator operated by the primary circuit breaker either by means of a mechanical linkage or via a control circuit to ensure that all winches and their control solenoids are isolated on operation of the primary circuit breaker.
18.2. Rear and four wheel steering is permitted unless prohibited by Official Documents.
18.3. Steering provided by hydraulic or other method of operation( i. e. not by a direct mechanical link) is permitted. Hydraulic systems may not exceed an operating pressure of 150bar.
18.4. Independently operated front and / or rear brakes are permitted
Motorsport UK National Competition Rules 2026 Edition 1
Chapter 20 Appendix 10- Technical Regulations 762