# The Carriage of Explosives by Road Regulations 1996, Paragraph 2


(1) The fire extinguisher referred to in paragraph 1(a) need not be suitable for fighting a fire in the engine if the vehicle is equipped with a fixed fire extinguisher, suitable for fighting a fire in the engine, which either works automatically or is easily brought into action.
(2) Where the vehicle is a motor vehicle with a permissible maximum weight of less than 3.5 tonnes, the fire extinguisher referred to in paragraph 1(b) may be replaced by a fire extinguisher with a minimum capacity of 2 kilograms of dry powder or other suitable extinguishant with an equivalent test fire rating of at least 5A and 34B as defined in British Standard BSEN 3-1: 1996.

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Source: https://www.legislation.gov.uk/uksi/1996/2093/schedule/8/paragraph/2 (the official version)
Page: https://openlegislation.uk/carriage-of-explosives-by-road-regulations-1996/schedule-8/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.