Surrey : Règlement no 13007, art. 4(2) — Highway and Traffic Bylaw

the driver of any emergency vehicle:

• (a) while it is responding to an emergency call and sounding an audible signal, siren, or bell, and showing at least a flashing red light; or at the scene of an emergency and showing at least a flashing red light;
• (b) who is a Peace Officer in immediate pursuit of an actual or suspected violator of the law; or
• (c) who is a Peace Officer engaged in a police duty of a nature that the sounding of an audible signal or siren would unduly hamper the performance of that duty;