The National Competition Rules contain all the basic rules governing participation in motorsport events in the UK.
Formerly the Motorsport UK Year Book (Blue Book), the transition to the 2025 National Competition Rules primarily represents a format overhaul with minimal material amendments to the existing regulations. While the essence and standards of the sport remain unchanged, the adoption of a digital-only format and the introduction of discipline-specific ‘Yearbooks’ aim to enhance clarity, accessibility, and navigability for all participants. The revisions ensure that all participants can easily access and interpret the regulations while maintaining the integrity of the sport.