(1)  Subject to this section, regulations under this Act made for the purposes of this section may extend the operation of an award or any provisions of an award to any work not otherwise subject to the award, and any such regulations may provide for the extension of that operation for a period specified in the regulations.

(2)  Regulations made for the purposes of this section have no effect in relation to any work that, apart from the operation of those regulations, is subject to some other award.

(3)  Where the operation of an award is extended by regulations made for the purposes of this section, that award operates as so extended and references in this Act to an award shall be construed as including references to an award as so extended.