It is sometimes necessary to establish the content of an Act at a specific point in time. For example, for auditing purposes you may need to check which tax rates applied at a certain time in the past, or indeed what the tax law was at the time before the introduction of GST.
This has been variously called the point in time, backdating or historical approach to Legislation. You can use a mixture of print and online resources to update legislation to a particular point in time.
Legislation to a point in time
The most thorough method is to:
OR
Search for Act by name or number and select All versions to see all previous compilations.
Historical Compilations Online
The Federal Register of Legislation and LawNow include historical superseded compilations. (A compilation becomes superseded each time the Act is amended).
LawNow Legislation (Lexis+)
History of Specific Provisions within Acts
Legislation to a point-in-time
As for Commonwealth legislation, the most thorough method is to:
History of Specific Provisions within Acts
If you are interested in the history of a particular provision of the Act, go to that provision in the current compilation of the Act and view the history of amendments given in italics below the text of each provision.
Here is an example showing the changes to ss 79 and 80 of the Stamp Act 1921 (WA):
Historical Compilations Online
The Western Australian Legislation provides legislative history, by keeping historical versions of earlier compilations where available. Earliest versions are 1998+. You can link to earlier versions from the respective Act's homepage.
Point-in-Time Search
Use the Search option from the left-side banner in the Western Australian Legislation database to find Act compilations 2006+ and Acts as Passed (Numbered Acts) 2000+
For more information on conducting point in time research, have a look at the article Comparing Versions of Legislation: In-text Legislative Amendments.
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