Section 2(1) of the Principal Act is amended as follows:

(a) by omitting "employer," from the definition of Australian wages and substituting "employer under this Act or a corresponding Act," ;

(b) by omitting "member," from the definition of Australian wages and substituting "member under this Act or a corresponding Act," ;

(c) by inserting the following definition after the definition of corporation :

corresponding Act means an Act in force in another State, a Territory or the Commonwealth that relates to the imposition upon employers of a tax on wages paid or payable by them and the assessment and collection of that tax;