1. General
1.1. Vehicles competing in Events must conform to the Technical Regulations and any specific discipline class regulations and Championship Regulations as appropriate. If it does not conform it will not be eligible to compete. Failure to conform is a breach of the NCR and may be subject of penalty( Chapter 2) and guideline penalties at Event are provided by App. 13.
1.2. The deliberate presentation of a Vehicle or any component part of it that is not eligible under the applicable Technical Regulations is considered as a dishonest act offending the overarching principle of sporting fairness embodied in the Code and the NCR and will be referred to the ASN Disciplinary Officer and may result in the matter being referred to the National Court and the Competitor subject of interim suspension of Competition Licence. Non-deliberate matters will proceed in accordance with the relevant provisions of the NCR and guideline penalties are provided by App. 13.
1.3. The ASN reserves the right to amend these Regulations at any time on grounds of safety or in the interests of fair and orderly Competition( Chapter 1 Art. 1.4). Without prejudice to the generality of that reserved authority the ASN will normally provide for amended Technical Regulations to be published as effective from the next ensuing calendar year. Amendments to present NCR and this Chapter are published on the ASN website. It is the Competitor’ s responsibility to be aware of all applicable Regulations.
2. Specific Regulations 2.1. The general Technical Regulations applying to Vehicles are set out in App. 1.
2.2. Specific Regulations are provided by the relevant Appendices of this Chapter and all Official Documents relating to Technical matters including Championship Technical Regulations and where applicable all discipline-related Technical Regulations and any relevant FIA Homologation.
2.3. Where Supplementary Regulations( SRs) leave any doubt as to the category in which a particular type of Vehicle falls for the purposes of the Competition the position shall be governed by the definitions set out in these Regulations.
2.4. Competition Car Log Books / Vehicle Passports are required for certain sporting disciplines as detailed in the Specific Regulations. Vehicle Passports are available from International, National and other approved Scrutineers. Vehicle inspections can be arranged by appointment with an appropriate grade local Scrutineer.
2.5. The Specific Regulations relating to Competition Car Log Books and Vehicle Passports are provided in App. 1.
2.6. By reciprocal arrangement the ASN will recognise Log Books issued by Motor Sport Ireland. Such Log Books are considered valid for Competitions within the UK.
2.7. As a general principal of all Technical Regulations it is prohibited to carry out any tuning or modification unless expressly permitted by the relevant Regulation( s) or a component is stated to be‘ free’.
2.8. Specific Regulations applying to Vehicles that are not powered exclusively by an internal combustion engine are to be contained in Official Documents and those Vehicles are additionally subject to the relevant provisions of Apps. 2 – 10 of this Chapter.
2.9. The Regulations for Electrified Vehicles are provided by App. 11. 2.10. The Regulations for Roll-Over Protection Systems( ROPS) are provided by App. 3. 2.11. The Regulations for Fuel Systems are provided by App. 4
2.12. The Regulations for Electrical Systems except Electrified Vehicles are provided by App. 5 Regulations for Electrical Systems except EV.
2.13. The Regulations for Fire Extinguishers and Systems are provided by App. 6. 2.14. The Regulations for seats harnesses and headrests are provided by App. 7. 2.15. The Regulations for exhaust systems and sound testing are provided by App. 8.
Motorsport UK 2025 National Competition Rules Version 11
Chapter 7- Competitor Vehicles and Vehicle Safety Equipment 240