Reference
Act amendment timelines
Plain-English amendment history for the 15 most-referenced Australian Acts. Every Royal Assent date, every commencement, what each amendment changed in 1-3 sentences, who's affected — and direct links to legislation.gov.au and regulator guidance. No competitor publishes this free outside the paid Westlaw, CCH iKnow and LexisNexis platforms.
Aged Care Act 1997
CWLTHThe **Aged Care Act 1997** was Australia's primary aged-care legislation for 28 years until repealed by the **Aged Care Act 2024**, which commenced 1 November 2025.
AML/CTF Act 2006
CWLTHAustralia's principal AML/CTF Act.
Competition and Consumer Act 2010
CWLTHAustralia's competition and consumer protection law.
Corporations Act 2001
CWLTHThe foundational federal Act for Australian corporate law.
Customs Act 1901
CWLTHOne of the original Federation Acts — Australia's foundational customs law, regulating import and export of goods, customs control, customs duties, and the powers of the Australian Border Force.
EPBC Act 1999
CWLTHAustralia's principal federal environmental Act.
Fair Work Act 2009
CWLTHAustralia's principal federal workplace relations Act, covering the National Employment Standards (NES), modern awards, enterprise bargaining, unfair dismissal, general protections (adverse action), industrial action and the powers of the Fair Work Commission and Fair Work Ombudsman.
Migration Act 1958
CWLTHAustralia's principal Act regulating non-citizen entry, stay and removal.
Modern Slavery Act 2018
CWLTHFederal Act requiring entities with consolidated annual revenue of $100M+ to publish an annual Modern Slavery Statement describing the risks of modern slavery in their operations and supply chains, and what they're doing about it.
NCCP Act 2009
CWLTHFederal regulation of consumer credit.
NDIS Act 2013
CWLTHEstablishes the National Disability Insurance Scheme — Australia's national, no-fault disability support system.
Privacy Act 1988
CWLTHThe federal Act that regulates how Australian Government agencies and APP entities (private-sector organisations with annual turnover over $3 million, plus carve-ins for health service providers, credit reporters, contractors and trading in personal information) handle personal information.
SOCI Act 2018
CWLTHThe federal Act regulating critical infrastructure — originally only electricity, gas, water and ports, now expanded to 11 sectors covering communications, data storage and processing, defence, energy, financial services, food and grocery, healthcare, higher education, space tech, transport and water.
Taxation Administration Act 1953
CWLTHThe Commonwealth Act governing tax administration — assessment, collection, recovery, penalty regime, secrecy and information-gathering.
Therapeutic Goods Act 1989
CWLTHFederal Act establishing the regulatory framework for therapeutic goods (medicines, medical devices, biologicals) in Australia.