27. No person shall use, or cause or permit to be used, on a road any vehicle on which any lamp, hazard warning signal device or warning beacon of a type specified in an item in column 2 of the Table below is used in a manner specified in that item in column 3.
| (1) | (2) | (3) |
|---|---|---|
| Item No. | Type of lamp, hazard warning signal device or warning beacon | Manner of use prohibited |
| 1 | Headlamp | (a)Used so as to cause undue dazzle or discomfort to other persons using the road. (b)Used so as to be lit when a vehicle is parked. |
| 2 | Front fog lamp | (a)Used so as to cause undue dazzle or discomfort to other persons using the road. (b)Used so as to be lit at any time other than in conditions of seriously reduced visibility. (c)Used so as to be lit when a vehicle is parked. |
| 3 | Rear fog lamp | (a)Used so as to cause undue dazzle or discomfort to the driver of a following vehicle. (b)Used so as to be lit at any time other than in conditions of seriously reduced visibility. (c)Save in the case of an emergency vehicle, used so as to be lit when a vehicle is parked. |
| 4 | Reversing lamp | Used so as to be lit except for the purpose of reversing the vehicle. |
| 5 | Hazard warning signal device | Used other than– (i) to warn persons using the road of a temporary obstruction when the vehicle is at rest; or (ii) on a motorway or unrestricted dual-carriageway, to warn following drivers of a need to slow down due to a temporary obstruction ahead; or (iii) in the case of a bus, to summon assistance for the driver or any person acting as a conductor or inspector on the vehicle. |
| 6 | Warning beacon emitting blue light and special warning lamp | Used so as to be lit except– (i) at the scene of an emergency; or (ii) when it is necessary or desirable either to indicate to persons using the road the urgency of the purpose for which the vehicle is being used, or to warn persons of the presence of the vehicle or a hazard on the road. |
| 7 | Warning beacon emitting amber light | Used so as to be lit except– (i) at the scene of an emergency; (ii) when it is necessary or desirable to warn persons of the presence of the vehicle; and (iii) in the case of a breakdown vehicle, while it is being used in connection with, and in the immediate vicinity of, an accident or breakdown, or while it is being used to draw a broken-down vehicle. |
| 8 | Warning beacon emitting green light | Used so as to be lit except whilst occupied by a medical practitioner registered by the General Medical Council (whether with full, provisional or limited registration) and used for the purposes of an emergency. |
| 9 | Warning beacon emitting yellow light | Used so as to be lit on a road. |
| 10 | Work lamp | (a)Used so as to cause undue dazzle or discomfort to the driver of any vehicle. (b)Used so as to be lit except for the purpose of illuminating a working area, accident, breakdown or works in the vicinity of the vehicle. |
| 11 | Any other lamp | Used so as to cause undue dazzle or discomfort to other persons using the road. |