AAATHE 4.Lighting requirements  113. You MUST  ● ensure all sidelights and rear registration plate lights are lit  between sunset and sunrise  ● use headlights at night, except on a road which has lit street  lighting. These roads are generally restricted to a speed limit  of 30 mph (48 km/h) unless otherwise specified  ● use headlights when visibility is seriously reduced (see Rule  226).  114. You MUST NOT  ● use any lights in a way which would dazzle or cause  discomfort to other road users, including pedestrians,  cyclists and horse riders  ● use front or rear fog lights unless visibility is seriously  reduced. You MUST   switch them off when visibility improves  to avoid dazzling other road users (see Rule 226).  Night (the hours of darkness) is defined as the period between half an hour after sunset and half an hour before sunrise).  Laws RVLR regs 3, 24, & 25, (In Scotland - RTRA 1984 sect 82 (as  amended by NRSWA, para 59 of sched 8))  In stationary queues of traffic, drivers should apply the parking  brake and, once the following traffic has stopped, take their foot off the footbrake to deactivate the vehicle brake lights. This will  minimise glare to road users behind until the traffic moves again.  Law RVLR reg 27  highwaycodeuk.co.uk 62 