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This proclamation declares defined geographic coordinates for Australia\u2019s straight baselines where, according to the principles set out in articles 7, 9 and 10 of UNCLOS, straight baselines have been drawn across the mouths of certain bays and rivers, and between the mainland and adjacent islands in some circumstances. \n\nThis release is the latest data for the Australian Maritime Boundaries (AMB) and is a component of the Seas and Submerged Lands Act (SSLA) 1973.", "geometryType": "esriGeometryPolyline", "sourceSpatialReference": { "wkid": 4283, "latestWkid": 4283 }, "copyrightText": "© Commonwealth of Australia (Geoscience Australia) 2021. 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