3.—(1) The Secretary of State, or a contractor, or any person appointed by, or acting on behalf of the Secretary of State, must charge the fee specified in fees regulations in respect of the exercise of the functions in connection with immigration or nationality that are specified in this Order.
(2) The fee specified in such regulations may not exceed the maximum amount specified in this Order in respect of the relevant function.
(3) The fee specified in such regulations must be calculated in the manner specified in this Order.
(4) Where no particular manner is specified, the fee must be a fixed amount.