Section 11Sec./Art. 11

Effectiveness of Designation. - Upon the IMO's adoption of the Philippines' proposal and due publicity, the President shall issue a proclamation establishing and designating the archipelagic sea lanes containing the specific coordinates defining the axis lines of all the archipelagic sea lanes, which shall take effect six (6) months after such issuance.

The National Mapping and Resource Information Authority (NAMRIA) shall cause the publication and submission of the charts depicting the coordinates of the sea lanes to the IMO after the establishment and designation by the President. The coordinates of the air routes above the archipelagic sea lanes shall likewise be submitted to the IMO together with the charts of the sea lanes.