Restrictor. Any device with stated orifice and minimum thickness 3mm of non-porous material, imposed or inserted either in an inlet tract for the purpose of Controlling the passage of the air / fuel mixture into the induction system and / or combustion chamber, or inserted in the exhaust tract to Control the passage of exhaust gases.
Road Book or Route Card. A document supplied to Competitors instructing them how to proceed from one point to another, and containing such information as to the Controls and Checks that they are to visit during the Event, how they will establish that they have visited checks not manned by Officials, details of Tests, etc.
Road Safety Rally. An Event organised with the intention of promoting Road Safety and falling within the provisions of automatic authorisation under the Motor Vehicles( Competitions and Trials) Regulations( where applicable). Such Events may qualify for an exemption of Permit.
Road Section. Any section of the route of a Special Stage Rally( excluding Control and service areas) whether on the Public Highway or not that links Special Stages.
Rollover Protection System( ROPS). Multi-tubular structure installed in the cockpit and fitted close to the bodyshell, the function of which is to reduce the deformation of the bodyshell( Chassis) in case of an impact.( See Chapter 7 App. 3 Roll-Over Protection Systems.)
RTA Licence. A driving licence issued by or on behalf of a national government. Saloon Car. See Touring Car.
Scheduled Speed. The average speed calculated from the time allowed to Competitors to cover a certain distance. In the case of highways this distance shall be that determined from 1:50,000 Ordnance Survey maps( or equivalent local maps) along the route specified by the Organisers, or if no route is specified by the shortest route.
Section. That portion of the route of a Competition between two Controls, or that portion of a route of a Competition to which specific requirements apply, eg:
a.
b.
Standard Section. Any section of a Rally where a Penalty is imposed for late arrival or arrival before Scheduled Time.
Neutral Section. Any Section of a Rally where the Organiser must impose an early arrival Penalty and, where applicable, a maximum lateness Penalty and where a Competitor is supplied with supplementary information by the Organiser that requires the Crew to observe special restrictions as to their driving behaviour and being a Section where a Competitor may not make up time.
c. Observed Section. A Section of a Trial that has to be traversed non-stop to avoid Penalty. d.
e.
Regularity Section. A Section of a Rally in which Competitors are required at all times to adhere to a set speed and in which adherence to that speed may be checked at intervals during the Section. The start and finish must be clearly defined.
Transport Section. Any Section of a Rally, being at least four miles in length, where no Penalty is applied for early arrival, other than in accordance with Chapter 13 App. 4 Art. 7 but where applicable, a maximum lateness Penalty can be applied. A Section whose sole purpose is to transport Competitors between other types of section.
Seminar. An educational presentation by or on behalf of the ASN with or without participation by the attendees.
Series Production Car. A Vehicle of which at least 1,000 identical examples have or are being manufactured within a twelve consecutive month period.
Series Production Engine. An engine sourced from a Series production Vehicle The origin of the cylinder head and cylinder block must always be established.
Servicing. Work carried out on the Competition Vehicle by any person, other than the competing Crew, or the use of any part or tools not carried in the Competition Vehicle.
Shortest Route. The shortest route between two points using only Public Highways, unless specific permission has been obtained for the use of private property and all Competitors so informed.
Signal. A means of communication to a Competitor by ASN( or FIA where applicable) approved flag or light signals.
Motorsport UK National Competition Rules 2026 Edition 1
Chapter 1 Appendix 1- Definitions and Nomenclature 39