4. Acts

Acts are laws formally passed by parliament and that have received royal assent by the crown. Royal Assent is granted on behalf of the crown by the Governor or Governor-General. Sometimes Acts are referred to as Statutes.

Anatomy of an Act

The structure of most Acts is consistent across jurisdictions, starting with a preliminary section, and separated into parts, divisions, and sections. The image shows the preliminary part of the Jobs Queensland Act 2015 (Qld).

The preliminary section of an Act generally follows the format set out in the example and provides useful information about the Act. It will often have a definitions or interpretations section.

Jurisdiction — this will be readily apparent on the front page of the Act.

Act number — most Parliaments have a numbering system based on the calendar year. This Act is the 23rd Act of 2015.

Long title — although you would not generally cite a modern Act by it's long title, long titles can be helpful for the purposes of statutory interpretation as they explain the Act’s purpose.

Short title — this is the name of the Act together with the year it was passed

Commencement date — Usually found in section 2 and provides information about when the Act commences. This is discussed in greater detail below.

Date of Royal Assent — this is generally published on the title page of the Act when it is passed.


Acts will not come into force until the commencement date or 'date of operation'. Sometimes different sections of an Act commence at different times. Knowing how to check whether an Act has commenced is an important legislative research skill.

Commencement information is often found in the Act itself, under s 2. However, this could be a general statement rather than a specific date, stating that the Act will commence:

  • upon receiving Royal Assent from the Governor or Governor-General
  • on a specified date
  • date to be proclaimed (in the future)
  • in relation to another piece of legislation
  • the default date of 28 days after receiving Royal Assent.

One of the easiest ways to locate the commencement date is to look at the Endnotes or Notes section of the latest version of the Act.

Screenshot showing Endnotes of Act
Screenshot showing the commencement date of the Telecommunications (Interception) Act 1979 (Cth). 
(Sourced from the Federal Register of Legislation at 4 February 2019. For the latest information on Australian Government law please go to https://www.legislation.gov.au. CC BY 4.0)

For Queensland legislation, you can select "Legislative history" in the OQPC website to view the commencement information.

 Watch What is the legislative history? (MP4, 12MB) and you will see the commencement information in the List of Legislation.


During the currency of an Act, it may be changed by amendment Acts passed by Parliament. When a version of an Act is produced that incorporates these changes it is referred to in various ways:

  • version
  • reprint
  • consolidation
  • compilation

It is important to know how up-to-date an Act is when you are using it. Check for a date on the front page of the Act that claims:

  • 'This compilation was prepared on...'
  • 'Current as at...'

If some time has passed since the compilation was prepared, amendments might have been made to the Act that have not yet been incorporated into the version to which you are referring.

Acts as passed or Numbered Acts are Acts in their original form. That is, as they were passed in the parliament.

Amending Act is a statute that alters the operation of an earlier Act through substitution, insertion, omission or repealing.

Reprint or Compilation incorporates all amendments to the Numbered Act.

Consolidating Act is a statute that combines all the Acts in force relating to a particular subject area.

Repealed or Ceased Acts are no longer enforced as law.


What is one way you can find the commencement information of a Commonwealth Act?
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