The Statute of Westminster 1931 was brought into effect in Australia by the Statute of Westminster Adoption Act 1942. Section 2 deals with the Validity of laws made by Parliament of a Dominion (28 and 29 Vict. c. 63):
1. The Colonial Laws Validity Act, 1865, shall not apply to any law made after the commencement. of this Act by the Parliament of a Dominion.
2. No law and no provision of any law made after the commencement of this Act by the Parliament of a Dominion shall be void or inoperative on the ground that it is repugnant to the law of England, or to the provisions of any existing or future Act of Parliament of the United Kingdom, or to any order, rule or regulation made under any such Act, and the powers of the Parliament of a Dominion shall include the power to repeal or amend any such Act, order, rule or regulation in so far as the same is part of the law of the Dominion.”