All vehicles shall comply in all respects with the requirements of the Motor Vehicle (Type Approval) Regulations 1980, Motor Vehicle (Type Approval) Regulations (Great Britain) 1984 and the Road Vehicles (Construction and Use) Regulations 1986. In addition, all vehicles must comply in all respects with the British and European Vehicle Regulations and be type approved to the requirements of the M1 category of European Whole Type Approval 70/156/EEC as amended.

Vehicles converted from vans which have a type approval other than M1 will not be acceptable unless they are presented with approved M1 certification for the resultant vehicle.

If a vehicle has been registered with DVLA and issued with an appropriate registration index number, no change, structural alteration or rearrangement of detail shall be carried out to the vehicle unless such change shall have been subsequently granted M1 Whole Type Approval.