Taxation Administration Act 1953

A *private ruling may specify the time from which it begins to apply and the time at which it ceases to apply.

The specified start time, or end time, may be before, when, or after the *private ruling is made and may be determined by reference to a specified event.

A *private ruling that does not specify a start time applies from the time when it is made.

A *private ruling, other than an *indirect tax or excise ruling, that does not specify an end time ceases to apply at the end of the income year or other accounting period in which it started to apply.

A private ruling that:

is an indirect tax or excise ruling; and

does not specify an end time;