g. Unauthorised servicing. h. Unauthorised smoking. i. Excessive Vehicle Noise( observed during the Event). j. Violation of out of bounds areas. k. Violation of the regulations regarding crash helmets seat belts or flame-retardant overalls.
4.41. Driving Standards Observers may be appointed to adjudicate on:
a. Excessive Vehicle Noise( observed during the Event). b. Excessive speed. c. Driving in a manner likely to bring motor sport into disrepute.
4.42. Checks operated by Judges of Fact or DSOs need not be manned for the whole period during which Competitors may report and so may operate on a random basis.
4.43. Organisers should include in their Official Documents the following notice to Competitors: Judges of Fact and / or DSOs will be appointed to report on noise levels. Excessive noise will include instantaneous occurrence of noise such as but not exclusively that produced by backfiring caused by anti-lag systems. The penalty for excessive noise may go as far as Disqualification.
4.44. Any Competitor driving at an excessive speed or recklessly or in a manner likely to bring motor sport into disrepute or who is convicted of any driving offence committed during the Event may be Disqualified.
4.45. The Official in charge of any Control or Check may mark or withhold a Competitor’ s Road Book or Time Card if the Vehicle concerned has suffered damage to its exhaust system.
4.46. The Clerk of the Course can appoint Officials empowered to search Competitors and their Vehicles for Unauthorised Pace Notes.
4.47. There should be two such Officials one male to check male Competitors and one female to check female Competitors.
4.48. An Organiser may permit the supply of subjective route notes. This must be stated in the Official Documents and the subjective route notes must be prepared by a ASN registered supplier.
Motorsport UK National Competition Rules 2026 Edition 1
Chapter 13 Appendix 2- Duties and Responsibilities of Clerks of the Course for All Types of Rally’
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