Point to Point Transport (Taxis and Hire Vehicles) Regulation 2017
12 Signs, lights and markings—taxis
(1) A taxi that plies or stands for hire on a road or road related area must be fitted with—(a) a roof sign that displays the word “TAXI” in black lettering at least 70 mm high, and(b) a roof light that is clearly visible in daylight from a distance of 40 metres by a person having normal eyesight.(2) The roof light must be lit when the taxi is available for hire on a road or road related area but must not be lit at any other time.(3) A taxi that plies or stands for hire on a road or road related area must be painted or marked so that—(a) it is clearly identifiable as a taxi, and(b) the name or other identifying logo or colours of, and the contact information for, the provider of the taxi service are displayed prominently and are clearly visible on the taxi.(4) The following are responsible persons for this safety standard—(a) the provider of a taxi service (other than an affiliated service), if the taxi is used to provide the taxi service,(b) the facilitator of an affiliated service and the affiliated provider, if the taxi is used to provide the affiliated service,(c) the holder of the taxi licence for the taxi.