The Road Vehicles Lighting Regulations 1989

Lamps to show a steady lightE+W+S

13.—(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 [F1or 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; F2...

(f)lamps forming part of a traffic sign;

[F3(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.]