Search and rescue (SAR) is the search for and provision of aid to people who are in distress or imminent danger. The general field of search and rescue includes many specialty sub-fields, typically determined by the type of terrain the search is conducted over. These include mountain rescue; ground search and rescue, including the use of search and rescue dogs ; urban search and rescue in cities; combat search and rescue on the battlefield and air-sea rescue over water.

Australian Maritime Safety Authority (AMSA) is an Australian statutory authority responsible for the regulation and safety oversight of Australia's shipping fleet and management of Australia's international maritime obligations. The authority has jurisdiction over Australia's exclusive economic zone which covers an area of 11,000,000 square kilometres (4,200,000 sq mi). AMSA maintains Australia's shipping registries: the general and the international shipping registers.