to be applied by the driver through the braking system to each axle. For Cars in Category 1 the adjustment of brake balance must not be possible by either the Driver or the Co-Driver when normally seated in the car.
13.7.13.10. A hydraulic handbrake is permitted where a functioning mechanical system is also present. The hydraulic handbrake lever shall operate in an arc not exceeding 50 degrees from the horizontal( See Drawing 1 App. 23).
13.8. For Vehicles in Categories 2 or 3 or 4 Art. 13.6 does not apply where OE specification tyre aspect ratios are less than those specified therein.
14. Miscellaneous Electrical Systems
5.1.14.1. Vehicles must have a maximum of four forward facing beams as well as side and indicator lights unless further restrictions are specified in the Official Documents.
5.2.14.2. Light pods are not permitted. 5.3.14.3. A headlamp must provide the main beam and dipped beam functions.
5.414.4. An auxiliary lamp provides a beam other than that provided by the headlamp. With the exception of cars built before 31st December 1946, the maximum width of the lamp body of any auxiliary lamp must not exceed 222mm.
5.514.5. A headlamp may consist of a single reflector with a dual filament bulb or separate reflectors each with single filament bulbs providing the functions of main beam and dipped beam separately. This will be considered as equivalent to a single dual filament headlamp unit. Lamp units comprising two reflectors where one is fitted with a dual filament bulb will be considered as a combined headlamp and auxiliary lamp. In this instance therefore no additional auxiliary lamps may be fitted.
5.6.14.6. Auxiliary lamps unless fitted by the manufacturer as standard equipment using gas discharge or LED technology are not permitted unless fitted by the manufacturer as standard equipment, and gas discharge or LED headlamp units may not be retro-fitted. The maximum voltage rating of any auxiliary lamps must not exceed 12v. It is expressly prohibited to use 24v auxiliary lamps.
5.7.14.7. Auxiliary lights must not be used in neutral Sections except in poor visibility as permitted by law.
5.8.14.8. Where more than four beams are fitted as standard only four may be used and the remainder must be rendered unusable for the duration of the Event.
5.9.14.9. Vehicles must have all lights fitted and used according to Motor Vehicle Lighting Regulations to comply with construction and use, with the following restrictions on reversing lights:
a. A maximum of two reversing lights may be fitted to the Vehicle. c.
d.
Only incandescent type lamp units with a maximum power of 24W, of a nonfocused beam type, may be utilised.
Reversing lights must be extinguished when the Vehicle is travelling forwards in accordance with the Road Vehicles Lighting Regulations 1989.
5.10. 14.10. External navigational or Marshal lights are not permitted.
5.11. 14.11. For Events taking place wholly between 07.00 and 22.00hrs Arts. 14.1 14.6, 14.8 and 4.10 above do not apply.
15. Standard Production Cars compliant with Art. 9.2. c and d. must comply with Arts. 9.3 – 14.2 inclusive and the following regulations: Miscellaneous
14.115.1. Vehicles must not use racing style numbers nor carry advertising other than Event sponsor decals, or a sunstrip compliant with Art. 15.4 below.
14.215.2. Vehicles must use Permitted Fuel as defined in Ch. 8 App. 1 Art. 1.7 a, c, or d.
Motorsport UK National Competition Rules 2026 Edition 5
Chapter 22 Appendix 13 – Rally( Chapter 13) 830