The WHS Bill is a Western Australian version of the model Work Health and Safety Bill (model WHS Bill) developed by Safe Work Australia for implementation by Australian states and territories.  The Government  released the WHS Bill as a Green Bill for public consultation which closed on 30 January 2015.  The Green Bill has been developed for consultation purposes and does not necessarily represent the Government's settled position.  The tabling of the Green Bill should not be construed as locking in a transition from the WA OSH Act to a Western Australian version of the model WHS laws.

The WHS Bill contains the core provisions of the model WHS Bill with some modifications to suit the Western Australian working environment.