# The Road Vehicles (Construction and Use) Regulations 1986, Paragraph 4


For the purposes of this Part of this Schedule, in the case of a vehicle of a description specified in the Annex to the emissions publication, the engine shall be regarded as running at a normal idling speed if and only if the engine is running at a rotational speed between the minimum and maximum limits shown against that description of vehicle in columns 2(b) and (c) respectively of that Annex.

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Source: https://www.legislation.gov.uk/uksi/1986/1078/schedule/7B/paragraph/4 (the official version)
Page: https://openlegislation.uk/road-vehicles-construction-and-use-regulations-1986/schedule-7B/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.