# Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999, Regulation 42: Speed limiters fitted to buses and coaches


(1) This regulation applies to every bus and coach which—
(a) has a maximum gross weight exceeding 10 tonnes;
(b) has, or if a speed limiter were not fitted to it would have, a maximum speed exceeding 100 km/h; and
(c) was first used on or after 1st January 1988.
(2) Every vehicle to which this regulation applies shall be fitted with a speed limiter which must—
(a) be sealed by an authorised sealer in such a manner as to protect the limiter against any improper interference or adjustment and against any interference of its power supply;
(b) be maintained in good and efficient working order; and
(c) be calibrated to a set speed not exceeding 100 km/h.
(3) A speed limiter fitted before 1st October 1994 to a vehicle to which this regulation applies must comply with—
(a) Part 1 of the British Standard; or
(b) the Annexes to Community Directive 92/24.
(4) A speed limiter fitted on or after 1st October 1994 to a vehicle to which this regulation applies must comply with the Annexes to Community Directive 92/24.
(5) This regulation does not apply to a vehicle—
(a) being taken to a place where a speed limiter is to be installed, calibrated, repaired or replaced; or
(b) completing a journey in the course of which the speed limiter has accidentally ceased to function.
(6) Paragraph (2)(a) shall have effect in relation to—
(a) a speed limiter fitted before 1st January 1995 to a vehicle first used before that date; or
(b) a speed limiter sealed outside the United Kingdom,
as if the words “by an authorised sealer” were omitted.
(7) Paragraph (3) does not apply to a speed limiter fitted to a vehicle if the speed limiter complies with an equivalent standard.
(8) Until 22nd February 2001, in relation to a vehicle not used for transport operations outside the United Kingdom and first used before 22nd February 2000, paragraph (2)(c) shall have effect as if for “100 km/h” there were substituted “105 km/h”.
(9) In this regulation—
“authorised sealer” means a person authorised by the Department in accordance with Schedule 3 of these Regulations, or by the Secretary of State for Transport in accordance with Schedule 3B of the Road Vehicles (Construction and Use) Regulations 1986;
“equivalent standard” means—
(i) a standard or code of practice of a national standards body or equivalent body of any EEA State; or
(ii) any international standard recognised for use as a standard by any EEA State; or
(iii) a technical specification or code of practice which, whether mandatory or not, is recognised for use as a standard by a public authority of any EEA State,
where the standard, code of practice, international standard or technical specification provides, in relation to speed limiters, a level of speed control equivalent to that provided by Part 1 of the British Standard;
“Part 1 of the British Standard” means the British Standard for Maximum Road Speed Limiters for Motor Vehicles which was published by the British Standards Institution under the number BS/AU 217: Part 1: 1987 and which came into effect on 28th May 1987; and
“speed limiter” means a device whose primary function is to control the fuel feed to the engine in order to limit the vehicle speed to the specified value.

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Source: https://www.legislation.gov.uk/nisr/1999/454/regulation/42 (the official version)
Page: https://openlegislation.uk/motor-vehicles-construction-and-use-regulations-northern-ireland-1999/regulation-42
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.