The Maintenance Programme for an aircraft operated commercially under an ICAO Article 83bis agreement or CAR OPS 1 or CAR OPS 3 | Commercial Air Transport is required to be approved by the CAA SMR before a Certificate of Airworthiness can be issued.
A full description of the CAA SMR policies and guidance on acceptable maintenance programmes are contained in CAP 13 | Maintenance Programme.
A formal application can be made using FORM SM 73, which is required to be sent along with FORM SM 74.