# Road Vehicles Lighting Regulations (Northern Ireland) 2000, Paragraph 2: Small Buses


In a small bus a three position switch shall be fitted for the purpose of enabling the driver to—
(a) switch on the illuminable sign and warning lights, or the bulb or lamp of a roof bar and its associated warning lights;
(b) switch on the illuminable sign continuously and switch off the warning lights, or switch on the lamp or bulb of a roof bar on continuously and switch off the associated warning lights; and
(c) switch off the illuminable sign and warning lights or switch off the bulb or lamp of a roof bar and its associated warning lights.
(2) A delay shall be built into the systems so that the warning lights will continue to flash 4-8 seconds after they are switched off.

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Source: https://www.legislation.gov.uk/nisr/2000/169/schedule/22E/paragraph/2 (the official version)
Page: https://openlegislation.uk/road-vehicles-lighting-regulations-northern-ireland-2000/schedule-22E/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.