The road vehicle lighting regulations act got amended in the United Kingdom. It now covers the legal requirements for the use of headlamps and front fog lamps.
The Vehicle Certification Agency is an executive agency of the Department for Transport.
VCA is the national approval authority which decides a set of environmental and safety standards.
Their standards relate to all new road vehicles, agricultural tractors, off-road vehicles (e.g. quad bikes), and their individual systems and components.
Note: The conditions described below are provided for guidance only. We cannot be held responsible for any mistakes or misinterpretations that exist or for any action taken after reading this information. Check the UK Highway Code for further details on British road rules.
1. Save as provided in paragraph 2, no person shall use, or cause or permit to be used, on a road a vehicle which is fitted with obligatory dipped-beam headlamps unless every such lamp is kept lit:
2. The provisions of paragraph 1 do not apply:
3. For the purposes of this regulation a headlamp shall not be regarded as lit if its intensity is reduced by a dim-dip device.
Vehicle Lighting Requirements | When to use sidelights, dipped headlights, and hazard warning lights.
Vehicle Maintenance and Safety | Information and rules for drivers on maintenance, safety, and security.
Motor Vehicle Lighting Regulations in the United Kingdom