The National Reserve System (NRS) is Australia's key framework to secure and manage terrestrial biodiversity in a changing climate and to meet natural national obligations under the Convention on Biodiversity Diversity. The NRS is the network of public, Indigenous, and private protected areas, and is our safety net in the face of threats from climate change.

The NRS is the cornerstone of national efforts to protect terrestrial biodiversity and the key strategy for reducing negative impacts of climate change on biodiversity.

The NRS is underpinned by a scientific framework, to develop a 'comprehensive, adequate and representative' system of protected areas, commonly referred to as the 'CAR' reserve system. [4] 

The goal of a CAR reserve system as endorsed by all Australian governments is reflected in Australia's Strategy for the National Reserve System 2009 - 2030. [5]