The Trade Practices Amendment (Australian Consumer Law) Act (No. 2) 2010 is the federal legislation that inserted the Australian Consumer Law into Schedule 2 of the Trade Practices Act 1974. That parent Act is now called the Competition and Consumer Act 2010. So, while the ACL is often discussed as if it were a separate law, the practical legal position is that the ACL sits in Schedule 2 of the Competition and Consumer Act 2010.
This Act was part of the move to a single national consumer law framework. The official text shows that it did much more than add a few isolated rules. It inserted a large and structured body of consumer law covering general protections, specific unfair practices, consumer transactions, product safety, information standards, manufacturer liability, offences, enforcement and remedies. It also amended the Australian Securities and Investments Commission Act 2001 and many other Commonwealth Acts so the new framework would operate consistently across the federal statute book.
For business owners, the practical point is straightforward. If your business deals with consumers, advertises products or services, uses standard terms, offers lay-by, handles refunds, or supplies goods that could create safety issues, this Act is the legislative reason those national ACL rules became part of federal law.