# Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999, Regulation 22: Vacuum or pressure brake warning devices


(1) Subject to paragraph (2), a motor vehicle which is equipped with a braking system which embodies a vacuum or pressure reservoir or reservoirs shall be equipped with a device so placed as to be readily visible to the driver of the vehicle and capable of indicating any impending failure of, or deficiency in, the vacuum or pressure system.
(2) The requirement specified in paragraph (1) does not apply to—
(a) a vehicle to which paragraphs (1), (2), (4) or (5) of regulation 20 applies, or which complies with the requirements of that regulation, of Community Directive 79/489, 85/647, 88/194 or 91/422 or of ECE Regulation 13.03, 13.04, 13.05 or 13.06;
(b) an agricultural motor vehicle which complies with Community Directive 76/432;
(c) a vehicle with an unladen weight not exceeding 3,050 kg propelled by an internal combustion engine, if the vacuum in the reservoir is derived directly from the induction system of the engine, and if, in the event of a failure of, or deficiency in, the vacuum system, the brakes of that braking system are sufficient under the most adverse conditions to bring the vehicle to rest within a reasonable distance; or
(d) a vehicle first used before 1st October 1937.

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Source: https://www.legislation.gov.uk/nisr/1999/454/regulation/22 (the official version)
Page: https://openlegislation.uk/motor-vehicles-construction-and-use-regulations-northern-ireland-1999/regulation-22
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.