Outside of Australia, the Great Australian Bight is generally considered part of the Indian Ocean. The AHS considers it to be part of the Southern Ocean, using the expanded Australian definition used for this ocean. The IHO in its Limits of Oceans and Seas (both the currently in-force 1953 edition and the 2002 never-approved draft) includes the bight with the Indian Ocean, while Bass Strait and the Tasman Sea are included by IHO with the South Pacific Ocean in the 2002 draft. In the 1953 edition, IHO includes Bass Strait as part of the Indian Ocean.