This layer supersedes Port Authorities (LGATE-132)
Port Authorities for the State of Western Australia. As originally declared under individual Port Authority Acts (7) and more recently declared under the Port Authorities Act 1999 (2). Derived from the Spatial Cadastral Database (SCDB) and based on GDA 94. Updated regularly when amendments/changes to boundaries are formalised, all of which are now gazetted under the Port Authorities Act 1999.