Rule 148
Safe driving and riding needs concentration. Avoid distractions when driving or riding such as loud music (this may mask other sounds) trying to read maps starting or adjusting any music or radio arguing with your passengers or other road users eating and drinking smoking You MUST NOT smoke in public transport vehicles or in vehicles used for work purposes in certain prescribed circumstances. Separate regulations apply to England, Wales and Scotland. In England and Wales, the driver MUST NOT smoke or allow anyone to smoke in an enclosed private vehicle carrying someone under 18, including motor caravans. In Scotland it is an offence for anyone aged 18 or over to smoke in a private motor vehicle (unless it is parked and being used as living accommodation) when there is someone under 18 in the vehicle and the vehicle is in a public place. Laws TSf(EV)R , TSfP(W)R , TPSCP(S)R , S-f(PV)R , S-f(W)R & SP(CIMV)(S)A