Brunei–Malaysia border claim a continental shelf beyond its 200 nautical mile limit. It defined its current "territorial sea and continental shelf" boundary with Malaysia in accordance with the North Borneo (Definition of Boundaries) Order in Council 1958 and Sarawak (Definition of Boundaries) Order in Council 1958 up to the 100 fathom isobath, and its "territorial sea, exclusive economic zone and continental shelf" boundary with Malaysia up to the 200 nautical mile limit in accordance with 16 May 2009 Exchange of Letters between the two countries. No details of the boundaries were however given. Brunei said its full submission which should bear the
Brunei–Malaysia border sections which were not covered by these agreements, the two countries agreed that their common border will be delimited based on the watershed principle. In addition, the two countries agreed to push for the joint demarcation and survey of their common border, through the establishment the necessary structures and processes to carry this out. The Memorandum of Understanding on the Process for the Joint Demarcation and Survey of the Land Boundary was signed on 19 March 2012 in Johor Bahru, Malaysia. The MOU, which was signed during the 8th Malaysia–Brunei Darussalam Meeting on the Implementation of the 2009 Exchange of