The Executive shall submit to the Department a scheme for determining the rent to be charged by the Executive for any housing accommodation provided by it.

The Department may approve a scheme submitted under paragraph (1) with or without modifications.

The Executive shall comply with a scheme approved by the Department under paragraph (2).

The Executive may at any time, and if the Department so directs shall, submit to the Department proposals amending a scheme approved under paragraph (2) or a scheme replacing any such scheme and paragraphs (2) and (3) shall have effect in relation to those proposals or a scheme replacing an existing scheme as they have effect in relation to a scheme.