14. Fuel
13.12. The measurement position should be selected so that the effects of ambient and reflected noise is minimised. This position will be shown on the Track Licence.
13.13. Maximum noise levels will be 108 dBA with a microphone set at a height of 1.8m ± 0.1m or 105 dBA with a microphone set at a height of 3.6m ± 0.1m above the track.
14.1. Fuel must be Permitted Fuel as defined in Ch. 8 part( a) plus lubricant where applicable. CIK-FIA compliant Fuel as defined in Ch. 8 part( b) may be used if specified in Championship Regulations.
14.2. The petrol / lubricant mixture as well as petrol only must comply with the ASN defined specifications in Ch. 8.
14.3. The use of power boosting or octane boosting additives by competitors in any fuel is prohibited.
14.4. All systems of injection and / or spraying of products other than fuel are forbidden unless specifically permitted in Class Regulations.
14.5. Electrically powered Karts are permitted subject to ASN approval. 14.6. Alternative fuels may be permitted subject to ASN prior approval.
14.7. The fuel tank must be fixed in such a way that neither it nor the fuel pipes which must be flexible present any danger of leakage during the Competition.
14.8. The use of fuel catalyst devices fitted to fuel lines is prohibited. 14.9. If plastic is used for the tank it must be of a type suitable for carrying fuel. 14.10. The tank must supply the fuel pump with petrol under normal air pressure only. 14.11. Unless otherwise specified the petrol tank must be mounted within the area of the Chassis Frame. 14.12. Where appropriate the Class Regulations will specify tank capacity.
14.13. For all Classes to enable a fuel test to be conducted three litres of fuel should be present and a minimum of one litre of fuel must be present at the end of each Race. The penalty for failure to have the minimum quantity present is disqualification from the results in that Race.
14.14. Fuel samples will be tested in accordance with the procedure in Ch. 8 App. 2.
14.15. If control fuel is specified for use in an Event or Championship this must be specified in the Official Documents.
14.16. Any Competitor found to be using fuel or lubricants in contravention of Regulations may in addition to any other penalty be referred to the ASN for further action( Ch. 8 App. 2 Art. 1.9).
14.17. Competitors must declare the percentage of lubricant used and further must provide when requested a minimum of 0.5 litre of that lubricant.
15. Bodywork and Bumpers 15.1. The following regulations apply unless specifically varied in Class Regulations.
16. Short Circuit Karts 16.1. All Short Circuit Karts must be fitted with bumpers and bodywork providing front rear and side protection.
16.2. All bodywork fitted to Short Circuit Karts( with the exception of Bambinos and pre-2023 900mm Cadet chassis) must be CIK-FIA Homologated. CIK-FIA Homologated bodywork that was homologated from 2015 or later must be used, with the exception of the Rear Wheel Protection( Art. 20).
16.3. CIK-FIA Homologated bodywork consists of a Front Fairing Front Panel( Nassau Panel) Rear Wheel Protection and Side Pods as well as their homologated bumpers / bars and fixings. All parts must at all times conform to the relevant homologation fiche in every way.
Motorsport UK National Competition Rules 2026 Edition 1
Chapter 18 Appendix 8- General Technical Regulations 672