<Li> Current NSW proof - of - age card (if they don't already have a driver's licence). </Li> <P> State legislation governs the sale and supply of alcohol in Western Australia . The Liquor Control Act 1988 and the Liquor Control Regulations 1989 is administered by the Department of Racing, Gaming and Liquor . The purpose of the Liquor Act is primarily to regulate the sale, supply, and consumption of alcohol . Before 1970, Western Australia drinking age was 21 . It is illegal for any person under the age of 18 years to purchase, supply, or drink alcohol on licensed or regulated premises, even if they are with their parents or guardian . The maximum penalty for a minor to consume alcohol on licensed premises is a $2,000 AUD fine . It is an offence in Western Australia for persons of any age to drink in public, such as on the street, park, or beach without first having obtained a permit from the appropriate local government authority . Such permits are at the discretion of the local council - some public events have a total ban on alcohol consumption and no permits will be issued . </P> <P> Western Australian alcohol laws only allow the following identification as legally accepted proof - of - age in licensed premises: </P> <Ul> <Li> Current Western Australian driver licence or a driver licence issued by an Australian state or territory government </Li> <Li> Current Western Australian learner driver permit card </Li> <Li> Current passport (Australian or foreign) </Li> <Li> Current Western Australian Photo Card, issued by the Department of Transport or a proof - of - age card issued by an Australian state or territory government </Li> </Ul>

When did the legal age become 18 in australia