# The Road Vehicles Lighting Regulations 1989, Regulation 13: Lamps to show a steady light

Extent: E+W+S

(1) Save as provided in paragraph (2), no vehicle shall be fitted with a lamp which automatically emits a flashing light.
(2) Paragraph (1) does not apply in respect of–
(a) a direction indicator;
(b) a headlamp fitted to an emergency vehicle or a vehicle used for special forces purposes;
(c) a warning beacon or special warning lamp;
(d) a lamp or illuminated sign fitted to a vehicle used for police purposes;
(e) a green warning lamp used as an anti-lock brake indicator; ...
(f) lamps forming part of a traffic sign;
(g) a front position lamp capable of emitting a flashing light (whether or not it is also capable of emitting a steady light) which is fitted to—
(i) a pedal cycle; or
(ii) a trailer drawn by, or a sidecar attached to, a pedal cycle;
and which, if it is a lamp which is required to be fitted pursuant to regulation 18, is capable, when emitting a flashing light, of emitting light to the front of the pedal cycle, trailer or sidecar (as the case may be) of an intensity of not less than 4 candelas; or
(h) a rear position lamp capable of emitting a flashing light (whether or not it is also capable of emitting a steady light) which is fitted to—
(i) a pedal cycle; or
(ii) a trailer drawn by, or a sidecar attached to, a pedal cycle;
and which, if it is a lamp which is required to be fitted pursuant to regulation 18, is capable, when emitting a flashing light, of emitting light to the rear of the pedal cycle, trailer or sidecar (as the case may be) of an intensity of not less than 4 candelas.

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Source: https://www.legislation.gov.uk/uksi/1989/1796/regulation/13 (the official version)
Page: https://openlegislation.uk/road-vehicles-lighting-regulations-1989/regulation-13
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.