Section 4Sec./Art. 4

Bangsamoro Municipal Regional Waters. - The municipal regional waters of the Bangsamoro Autonomous Region shall extend up to fifteen (15) kilometers and nineteen (19) kilometers, respectively, from the low-water mark of the coasts that are part of the Bangsamoro territorial jurisdiction.

Where a constituent local government unit of the Bangsamoro Autonomous Region and an adjoining local government unit are so situated on opposite shores such that there is thirty (30) kilometers of waters or less between them, a line equally distant from the opposite shores shall be drawn to demarcate the Bangsamoro waters and the municipal waters of the adjoining local government unit.

In case the constituent local government unit of the Bangsamoro Autonomous Region and an adjoining local government unit are so situated in opposite shores that there is ore than thirty (30) kilometers but less than thirty-four (34) kilometers of waters between them, a line shall be drawn at the edge of the fifteen-kilometer municipal waters of the adjoining local government unit to demarcate it from the Bangsamoro waters.