This chronology provides a timeline of key policies and programs, as well as other key events and developments, concerning the protection and conservation of the Great Barrier Reef.

In May 2023, the Australian and Queensland Governments sent the United Nations Educational, Scientific and Cultural Organization (UNESCO) a document outlining several new commitments for the protection of the Reef. In its July 2023 report, UNESCO recommended delaying the decision to place the Reef on the ‘in Danger’ list for at least another year, citing Australia’s new commitments and actions, and its progress in the region since the mission.