* Indicates maximum figures that may be reduced in the Official Documents.
3.1. Endurance Race. A Race scheduled to have a minimum of 90 minutes duration with refuelling permitted and / or Driver stops and / or Driver changes as an integral part of the Race.
3.2. Endurance Races should be started by Rolling Start unless otherwise stated in the Official Documents.
3.3. There is no restriction on the maximum number of Drivers for each Vehicle. 3.4. * A Driver may not drive for more than 3 hours in any 5-hour period. 3.5. For races over 6 hours any one Driver must not exceed 60 % of the scheduled Race.
3.6. A Driver may drive a maximum of 2 Vehicles during the Event provided that Driver is properly entered and qualified in each Vehicle.
3.7. To be classified in the results of an Endurance Race a Competitor must have completed at least a minimum of 50 % of the race duration completed by the winner unless otherwise specified in the Championship Regulations.
4. Specific Provisions relating to Scrutineering
4.1. At least 25 % of Competitors and Vehicles must be presented for scrutiny when requested as specified in the Official Documents. Any Scrutineering Label relating to a previous Event must be removed before presentation of the Vehicle for scrutineering. Homologation papers must be presented when appropriate.
4.2. All Competitor Personal Safety Equipment must comply with Chapter 9). 4.3. Any Competitor not reporting as instructed may be fined or Disqualified( see Chapter 2).
4.4. Vehicles competing in Race Events must comply with App. 13 to this Chapter and Chapter 7 and any appropriate Approved Formula Regulations.
4.5. No Vehicle requested to be presented at Scrutineering may be driven in the Event until it has been approved by an ASN Licensed Scrutineer of the Event for safety and eligibility.
4.6. If after approval for an Event any Vehicle is dismantled or modified in a manner which may affect its safety or eligibility or is involved in any incident which is likely to have a similar effect or is driven in Practice or Competition at another Event it shall be represented for approval. The Entrant is responsible for seeking such fresh approval.
4.7. In the event of an accident or collision occurring during a Race or Practice, the Vehicle or Vehicles involved may be required to halt for examination.
4.8. A Vehicle involved in an Incident and which is rendered unable to proceed or where any person is injured must not be touched by any person other than Officials without the specific approval of the Clerk of the Course. The Driver concerned may not Race again without the approval of the Chief Medical Officer.
4.9. No Vehicle taking part in a Race may be taken away from the Circuit before the final technical checks have been concluded for that Race( s) and Vehicles released from Parc Fermé without the prior authority of the Chief Scrutineer who will report such to the Clerk of the Course.
4.10. No Vehicle should compete in more than four consecutive Events without being physically scrutineered.
4.11. Vehicle Identification Stickers( Chapter 7 App. 1 Art. 1.11) and Event Scrutineering records( Chapter 7 App. 1 Art. 1.12) may be required for Vehicles competing in Race Events.
Radios and the transmission of electronic signals
4.12. Vehicles will be permitted to carry radio transmitters or receivers for which Ofcom licences where required will be checked at scrutineering in the following races only:
a.
International( non-Historic status) and British Championship Races
Motorsport UK 2025 National Competition Rules Version 11
Chapter 12 Appendix 4- Organisers’ Regulations and Restrictions 401