{
  "url": "https://openlegislation.uk/motor-vehicles-construction-and-use-regulations-northern-ireland-1999/regulation-42",
  "json_url": "https://openlegislation.uk/motor-vehicles-construction-and-use-regulations-northern-ireland-1999/regulation-42.json",
  "legislation": "nisr/1999/454",
  "legislation_title": "Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999",
  "legislation_url": "https://openlegislation.uk/motor-vehicles-construction-and-use-regulations-northern-ireland-1999",
  "path": "regulation/42",
  "kind": "regulation",
  "number": "42",
  "heading": "Speed limiters fitted to buses and coaches",
  "text": "(1) This regulation applies to every bus and coach which—\n(a) has a maximum gross weight exceeding 10 tonnes;\n(b) has, or if a speed limiter were not fitted to it would have, a maximum speed exceeding 100 km/h; and\n(c) was first used on or after 1st January 1988.\n(2) Every vehicle to which this regulation applies shall be fitted with a speed limiter which must—\n(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;\n(b) be maintained in good and efficient working order; and\n(c) be calibrated to a set speed not exceeding 100 km/h.\n(3) A speed limiter fitted before 1st October 1994 to a vehicle to which this regulation applies must comply with—\n(a) Part 1 of the British Standard; or\n(b) the Annexes to Community Directive 92/24.\n(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.\n(5) This regulation does not apply to a vehicle—\n(a) being taken to a place where a speed limiter is to be installed, calibrated, repaired or replaced; or\n(b) completing a journey in the course of which the speed limiter has accidentally ceased to function.\n(6) Paragraph (2)(a) shall have effect in relation to—\n(a) a speed limiter fitted before 1st January 1995 to a vehicle first used before that date; or\n(b) a speed limiter sealed outside the United Kingdom,\nas if the words “by an authorised sealer” were omitted.\n(7) Paragraph (3) does not apply to a speed limiter fitted to a vehicle if the speed limiter complies with an equivalent standard.\n(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”.\n(9) In this regulation—\n“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;\n“equivalent standard” means—\n(i) a standard or code of practice of a national standards body or equivalent body of any EEA State; or\n(ii) any international standard recognised for use as a standard by any EEA State; or\n(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,\nwhere 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;\n“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\n“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.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "S.I. 1986/1078; relevant amending instruments are S.I.s 1988/271 and 1524, S.I. 1991/1527 and S.I. 1992/422"
    }
  ],
  "outstanding_effects": [
    {
      "type": "substituted",
      "affecting": "nisr/2005/249",
      "affecting_title": "The Motor Vehicles (Construction and Use) (Amendment No. 2) Regulations (Northern Ireland) 2005"
    },
    {
      "type": "word omitted",
      "affecting": "nisr/2011/303",
      "affecting_title": "The Motor Vehicles (Construction and Use) (Amendment No. 2) Regulations (Northern Ireland) 2011"
    },
    {
      "type": "added",
      "affecting": "nisr/2011/303",
      "affecting_title": "The Motor Vehicles (Construction and Use) (Amendment No. 2) Regulations (Northern Ireland) 2011"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/1999/454/regulation/42",
    "retrieved_at": "2026-10-29T02:17:32.000361+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}