The Road Vehicles Lighting Regulations 1989 as amended govern the in-use fitment and maintenance of vehicle headlamps and were last updated in 2019. To minimise the risk of glare these regulations require that approved vehicle lamps are fitted only with approved light sources, including LEDs. International activity is ongoing at the United Nations and proposals to amend headlamp aiming criteria are expected to be agreed in April, together with requirements for mandatory automatic headlamp levelling.