Here is a general overview of the helmet laws in Australia at that time:
New South Wales (NSW): In NSW, wearing an approved motorcycle helmet is mandatory for both riders and passengers. The helmet must be securely fastened under the chin with a strap. The helmet should comply with the Australian/New Zealand Standard AS/NZS 1698:2006 or the United Nations Economic Commission for Europe (ECE) 22.05 standard.
Victoria (VIC): In Victoria, all motorcycle riders and passengers must wear an approved motorcycle helmet that complies with the Australian/New Zealand Standard AS/NZS 1698:2006. The helmet must be securely fastened at all times.
Queensland (QLD): In Queensland, wearing an approved motorcycle helmet is compulsory for riders and passengers. The helmet must meet the standards specified in Australian/New Zealand Standard AS/NZS 1698:2006 or United Nations Economic Commission for Europe (ECE) 22.05. It must be securely fastened under the chin.
Western Australia (WA): In Western Australia, motorcycle riders and passengers are required to wear an approved motorcycle helmet that complies with the Australian/New Zealand Standard AS/NZS 1698:2006. The helmet must be securely fastened at all times.
South Australia (SA): In South Australia, wearing an approved motorcycle helmet is mandatory for riders and passengers. The helmet should meet the standards specified in Australian/New Zealand Standard AS/NZS 1698:2006 or United Nations Economic Commission for Europe (ECE) 22.05. It must be properly fastened under the chin.
Tasmania (TAS): In Tasmania, all motorcycle riders and passengers must wear an approved motorcycle helmet that complies with the Australian/New Zealand Standard AS/NZS 1698:2006 or United Nations Economic Commission for Europe (ECE) 22.05. The helmet must be securely fastened under the chin.
Australian Capital Territory (ACT): In the ACT, motorcycle riders and passengers must wear an approved motorcycle helmet that meets the Australian/New Zealand Standard AS/NZS 1698:2006. The helmet should be properly fastened under the chin.
Northern Territory (NT): In the NT, motorcycle riders and passengers are required to wear a helmet that complies with Australian/New Zealand Standard AS/NZS 1698:2006. The helmet must be securely fastened at all times.
Please note that helmet laws can change over time, and it's important to refer to the latest information provided by the local transport or road authorities in your specific area or check the official government websites for the most up-to-date and accurate information regarding helmet laws in Australia.