rma.net was established in 1998 with a focus on providing a dedicated on-line library of legal decisions relating to New Zealand’s environment.

The legal decisions include decisions from the New Zealand Environment Court (formerly the Planning Tribunal) and relevant judgments of the New Zealand District Court, High Court, Court of Appeal and Supreme Court, plus relevant decisions of the Privy Council. The library has 12398 decisions which date back to the enactment of the New Zealand Resource Management Act in 1991.