186 Article 36 Ad hoc chambers 1. The Seabed Disputes Chamber shall form an ad hoc chamber, composed of three of its members, for dealing with a particular dispute submitted to it in accordance with article 188, paragraph 1(b). The composition of such a chamber shall be determined by the Seabed Disputes Chamber with the approval of the parties. 2. If the parties do not agree on the composition of an ad hoc chamber, each party to the dispute shall appoint one member, and the third member shall be appointed by them in agreement. If they disagree, or if any party fails to make an appointment, the President of the Seabed Disputes Chamber shall promptly make the appointment or appointments from among its members, after consultation with the parties. 3. Members of the ad hoc chamber must not be in the service of, or nationals of, any of the parties to the dispute. Article 37 Access The Chamber shall be open to the States Parties, the Authority and the other entities referred to in Part XI, section 5. Article 38 Applicable law In addition to the provisions of article 293, the Chamber shall apply: (a) the rules, regulations and procedures of the Authority adopted in accordance with this Convention; and (b) the terms of contracts concerning activities in the Area in matters relating to those contracts. Article 39 Enforcement of decisions of the Chamber The decisions of the Chamber shall be enforceable in the territories of the States Parties in the same manner as judgments or orders of the highest court of the State Party in whose territory the enforcement is sought. Article 40 Applicability of other sections of this Annex 1. The other sections of this Annex which are not incompatible with this section apply to the Chamber. 2. In the exercise of its functions relating to advisory opinions, the Chamber shall be guided by the provisions of this Annex relating to procedure before the Tribunal to the extent to which it recognizes them to be applicable.