The colonies ratified the Constitution of Australia, becoming States of the Commonwealth in the new federation, and ceding certain of their legislative powers to the Commonwealth Parliament, but otherwise retaining their self-governing status with their own constitutions and parliaments. The state parliaments were all created by legislation of the British Imperial Parliament, and their original constitutions were contained in Acts of that Parliament; however now the power to amend state constitutions resides with the respective state parliaments, in accordance with its constitution. The Commonwealth Parliament cannot amend a state's constitution.