The main law about marriage in Australia is the Marriage Act 1961.
Because legislation and guidance can change, the safest place to read it is on the official government websites.
Official sources
- Marriage Act 1961
- Marriage Regulations 2017
- Marriage celebrant code of practice
- Guidelines for authorised celebrants
What matters for this site
Our advice and service pages are built around the current legal basics:
- the NOIM requirement
- the one-month notice rule
- in-person solemnisation
- two adult witnesses
- identity and supporting documents
- proper registration after the marriage
If you want the practical version, start with Requirements or NOIM.