Industrial Relations Act 1996

A contract agreement is binding on—

the parties to the agreement, and

in the case of a party that is an association of employing contractors—all members of the association or a specified member or class of members, as provided by the agreement, and

in the case of a party that is an association of contract drivers or contract carriers—all bailees or carriers who are members of the association, or who are eligible to be members of the association and who enter into contracts of the class to which the contract agreement relates.

A contract agreement that, by the operation of this Part, is binding on a corporation as a member of an association of contract carriers is, except to the extent that the agreement otherwise provides, also binding on—

any director of the corporation, or any member of the family of any such director, who personally does work under a contract to which the agreement relates and to which the corporation is a party, and

any holder of shares in the corporation who personally does work under any such contract if that holder, together with the members of his or her family, has a controlling interest in the corporation, and

any member of the family of the holder of shares in the corporation who personally does work under any such contract if that holder, together with the members of his or her family, has a controlling interest in the corporation.