138.This section provides details about the form and content of approval certificates. The approval certificate must state the date the premises or vehicle was approved by the local authority (the “approval date”); the special procedure for which the premises or vehicle is approved; and the date upon which the approval will expire. If the approval certificate relates to a premises, it must also state the address of the premises it covers. In the case of a vehicle, the approval certificate must state the registration number of the vehicle, if it has one, or otherwise identify the vehicle in whatever way the local authority considers appropriate. Subsection (4) enables the Welsh Ministers to make further provision by way of regulations about the form and content of approval certificates.