Joint development in the Timor Sea
Additional Publication Information
The maritime boundary arrangements between Australia and Timor Leste are the result of a complex series of events stretching over 40 years back in time, from a point well before Timor Leste’s independence. The boundary arrangements, put in place first between Australia and Indonesia in 1989, then changed by Australia and the United Nations in 1999 and finally between Australia and Timor Leste from 2003, represent some of the most detailed joint development regimes in the world. While the current situation, as reflected in the Timor Sea Treaty and the Treaty on Certain Maritime Arrangements in the Timor Sea (CMATS Treaty), has existed for almost a half a decade, there is every indication that further change is still very much a possibility.