Subantarctic islands fall under the jurisdiction of national governments, with environmental regulation following the laws of those countries. Some islands are in addition protected through obtaining the status of a UNESCO World Heritage Site.[35] The Antarctic Treaty System regulates all activity in latitudes south of 60°S, and designates Antarctica as a natural reserve for science.[39] Under this system all activity must be assessed for its environmental impact. Part of this system, the Convention for the Conservation of Antarctic Marine Living Resources, regulates fishing and protects marine areas.[35]