Lamps to show a steady light
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;
(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; or
(f)lamps forming part of a traffic sign.