(1) The extension of a contract variation order is an order made by the Tribunal declaring that a contract variation order is, subject to any conditions, exceptions or limitations that are specified in the order, extended generally to regulated contracts of a specified class.
(2) An order extending a contract variation order has the effect of binding all hirers and contractors who enter, or have entered, into regulated contracts of the specified class.
(3) If an order extending a contract variation order is made, subject to any conditions, exceptions and limitations that are specified in the order—
(a) if the contract variation order declared a term of a regulated contract void—any equivalent term in a regulated contract in the specified class is void;
(b) if the contract variation order inserted a term into a regulated contract—that term is inserted into each regulated contract in the specified class that does not contain the term;
(c) if the contract variation order otherwise varied a regulated contract—each regulated contract in the specified class is taken to be varied accordingly.