National Reserve System

Australia's National Reserve System (NRS) is a network of more than 10,000 Commonwealth plus state and territory protected areas which, in combination, on a national scale, protect more than 137 million hectares (340×10^⁶ acres), greater than 17% of the continent, of unique biodiversity and most significant ecological landscapes for future generations. The aim of the NRS is protect the diversity of all native landscapes, flora and fauna across Australia through strategic habitat protection. It consists of public, indigenous and privately protected areas of land and inland freshwaters.

As part of the National Reserve System Cooperative Program, the Interim Biogeographic Regionalisation for Australia framework was developed as a planning tool to assist in identifying areas of priority.