Regulation 2 Restrictions on drivers

a distinguishing mark in the form set out in the Schedule shall be displayed in a conspicuous manner on the front and rear of any motor vehicle while it is being driven on a road by a person who is subject to the prescribed restrictions when driving that vehicle; and

a person who is subject to the prescribed restrictions shall not drive a motor vehicle on a road at a speed exceeding 45 miles per hour.

any member of the Naval, Military or Air Forces of Her Majesty, while in uniform and driving a motor vehicle which is the property of the Crown;

any member of the Royal Ulster Constabulary while driving a motor vehicle which is being used for police purposes;

the holder of a driving licence granted under the 1981 Order by reason of a test of competence passed by him at a time when he held a licence or permit which, by virtue of an order made under the Motor Vehicles (International Circulation) Act 1952^f1, entitled him to drive motor vehicles in Northern Ireland; or

any person while driving a motor vehicle the maximum speed of which is restricted by the Motor Vehicles (Speed Limits) Regulations (Northern Ireland) 1989^f2 to 45 miles per hour or less.