1. The Parties shall co-operate to the fullest extent possible to suppress illicit traffic by sea, in conformity with the international law of the sea.
2. A Party which has reasonable grounds to suspect that a vessel flying its flag or not displaying a flag or marks of registry is engaged in illicit traffic may request the assistance of other Parties in suppressing its use for that purpose. The Parties so requested shall render such assistance within the means available to them.
3. A Party which has reasonable grounds to suspect that a vessel exercising freedom of navigation in accordance with international law and flying the flag or displaying marks of registry of another Party is engaged in illicit traffic may so notify the flag State, request confirmation of registry and, if confirmed, request authorization from the flag State to take appropriate measures in regard to that vessel.
4. In accordance with paragraph 3 or in accordance with treaties in force between them or in accordance with any agreement or arrangement otherwise reached between those Parties, the flag State may authorize the requesting State to, inter alia :
(a)Board the vessel;
(b)Search the vessel;
(c)If evidence of involvement in illicit traffic is found, take appropriate action with respect to the vessel, persons and cargo on board.
5. Where action is taken pursuant to this article, the Parties concerned shall take due account of the need not to endanger the safety of life at sea, the security of the vessel and the cargo or to prejudice the commercial and legal interests of the flag State or any other interested State.
6. The flag State may, consistent with its obligations in paragraph 1 of this article, subject its authorization to conditions to be mutually agreed between it and the requesting Party, including conditions relating to responsibility.
7. For the purposes of paragraphs 3 and 4 of this article, a Party shall respond expeditiously to a request from another Party to determine whether a vessel that is flying its flag is entitled to do so, and to requests for authorization made pursuant to paragraph 3. At the time of becoming a Party to this Convention, each Party shall designate an authority or, when necessary, authorities to receive and respond to such requests. Such designation shall be notified through the Secretary-General to all other Parties within one month of the designation.
8. A Party which has taken any action in accordance with this article shall promptly inform the flag State concerned of the results of that action.
9. The parties shall consider entering into bilateral or regional agreements or arrangements to carry out, or to enhance the effectiveness of, the provisions of this article.
10. Action pursuant to paragraph 4 of this article shall be carried out only by warships or military aircraft, or other ships or aircraft clearly marked and identifiable as being on government service and authorized to that effect.
11. Any action taken in accordance with this article shall take due account of the need not to interfere with or affect the rights and obligations and the exercise of jurisdiction of coastal States in accordance with the international law of the sea.