Toolibin Lake is recognised as a wetland of international importance under the Ramsar Convention on Wetlands, under which it was designated Ramsar Site 483 on 7 June 1990. The Ramsar site includes the entire area of the lake with some adjacent land on the northern, western and southern sides of the lake added in 2001 since the original site nomination, ensuring a buffer zone of at least 100 m width around most of the lake.