The Australian government provides services through the Christmas Island Administration and the Department of Infrastructure and Regional Development. Under the federal government's Christmas Island Act 1958, Western Australian laws are applied to Christmas Island; non-application or partial application of such laws is at the discretion of the federal government. The act also gives Western Australian courts judicial power over Christmas Island. Christmas Island remains constitutionally distinct from Western Australia, however; the power of the state to legislate for the territory is delegated by the federal government. The kind of services typically provided by a state government elsewhere in Australia are provided by departments of the Western Australian government, and by contractors, with the costs met by the federal government. A unicameral Shire of Christmas Island with nine seats provides local government services and is elected by popular vote to serve four-year terms. Elections are held every two years, with four or five of the members standing for election.