It is not compulsory to brand or mark livestock.
The Brands Act 1933 was formally repealed by proclamation on 1 January 2016. This follows the Act being repealed by State Parliament in 1997. As a result of the formal proclamation brands no longer need to be registered with Primary Industries and Regions SA (PIRSA).
PIRSA advises livestock producers that although the brand system is now deregulated, producers can continue to apply brands, if they so wish, to identify their livestock. PIRSA is aware that some producers will continue using their brands for animal identification.
Go to the pig brands page.