In official statistics, revisions to published estimates occur for a number of reasons: from the on-going incorporation of late survey data, to occasional methodological improvements and changes in international classifications and standards.

Revision policies are used to manage the timing of the release of revisions to published estimates. The National Statistics Code of Practice includes a Protocol on Revisions which provides a broad framework for how the release of revised estimates should be managed.

Consistent with this Protocol, these policies outline the revision policy and revision information specific to:

  • Labour market statistics, and
  • Public sector employment statistics