a headlamp capable of being partly or completely hidden when not in use. This result may be achieved by means of a movable cover, by displacement of the headlamp or by any other suitable means. The term "retractable" is used more particularly to describe a concealable lamp the displacement of which enables it to be inserted within the bodywork.
Concealable lamps 3.15.1. The concealment of lamps shall be prohibited, with the exception of the main-beam headlamp, the dipped-beam headlamp and the front fog lamp, which may be concealed when not in use.
