Vehicle Excise and Registration Act 1994

6 (1) An ambulance is an exempt vehicle. U.K.

(2) In sub-paragraph (1) “ambulance” means a vehicle which—

(a) is constructed or adapted for, and used for no purpose other than, the carriage of sick, injured or disabled people to or from welfare centres or places where medical or dental treatment is given, and

(b) is readily identifiable as a vehicle used for the carriage of such people by being marked “Ambulance” on both sides.