4.7. If the result of this second test confirms compliance, then the remaining third sample will be tested; the Entrant must be given the opportunity to be present at this test.
4.8. Where testing takes place under Art. 3.7 above the result of this third test alone will conclusively determine the eligibility of the tyre( s) and notification will be given under Art. 5 below.
5. Storage of Samples 5.1. Samples retained by the ASN or its authorised Officials must be stored in a secure location.
5.2. If there is any evidence that any seal and / or container has been tampered with, then that sample will be deemed to be invalid.
6. Notification of Results
6.1. The result of either Analysis or Comparison tyre testing will be reported to the ASN or its authorised official and must be communicated to the Entrant, Clerk of the Course, Technical Commissioner( s), Chief Scrutineer and Eligibility Scrutineer prior to the relevant Judicial Official proceeding in accordance with Arts. 1.6 and 1.9 above.
7. Cost of Testing
7.1. Unless TTP is specifically authorised by the ASN the cost of testing shall be initially borne by the Club, organisation or individual requesting the test. However, whenever the conclusion of the testing procedure confirms non-compliance, then the Entrant shall be ultimately responsible for all costs and fees arising from the testing procedure.
7.2. The analysis of a laboratory on the UKAS list( or a laboratory approved by another ASN in respect of Article 2.4 above) or by an ASN approved comparison test, will be taken as a finding of fact.
8. Tyre Checking( Karting)
8.1. It shall be an offence to use a tyre which does not comply with the tyre specification laid down in the Technical Regulations, or the Official Documents of the Event( or Championship).
8.2. The analysis of a laboratory on the UKAS list( or a laboratory approved by another ASN in respect of U20.3.4.) or by an ASN approved comparison test, will be taken as a finding of fact.
8.3. The provisions of Ch. 2 App. 8 will apply in the case of a tyre or tyres found to be ineligible and additional penalties may be applied by the ASN and / or the ASN National Court.
Motorsport UK 2025 National Competition Rules Version 11
Chapter 8 Appendix 3- Tyre Testing and Checking 328