Rule 30 : Officers of the Subsidiary Bodies Unless the Commission decides otherwise, the subsidiary bodies of the Commission shall elect their own officers. Rule 31 : Rules of Procedure The Rules of Procedure of the Commission shall apply, as far as possible, to the proceedings of its subsidiary bodies. Chapter VII: Public Sessions and Private Sessions Rule 32 : General Principle The sittings of the Commission and of its subsidiary bodies shall be private and shall be held "in camera". Rule 33 : Publication of Proceedings At the end of each private sitting, the Commission or its subsidiary bodies may issue a communiqué through the Secretary-General. Chapter VIII: Languages Rule 34 : Working Languages The working languages of the Commission and of all its institutions shall be those of the Organisation of African Unity (OAU). Rule 35 : Interpretation 1. The address delivered in one of the working languages shall be interpreted in the other working languages. 2. Any person addressing the Commission in a language other than one of the working languages, shall, in principle, ensure the interpretation on one of the working languages. The interpreters of the Secretariat may take the interpretation of the original language as source language for their interpretation in the other working languages. Rule 36 : Languages to be Used for the Minutes of Proceedings The summary minutes of the sittings of the Commission shall be drafted in the working languages. Rule 37 : Languages to the Used Resolutions and other Officials Decisions All the official decisions of the Commission shall be communicated in the working languages that shall also apply to the other official documents of the Commission. Chapter IX: Minutes and Reports Rule 38 : Tape Recordings of the Sessions The Secretariat shall record and conserve the tapes of the sessions of the Commission. It may also record and conserve the tapes of the sessions of the Committees, Working Groups and sub-Commissions if the Commission so decides. Rule 39 : Summary Minutes of the Sessions The Secretariat shall draft the summary minutes of the private and public sessions of the Commission and of its subsidiary bodies. It shall distribute them as soon as possible in a draft form to the members of the Commission and to all other participants in the session. All those participants may, in the seven (7) working days following the receipt of the draft minutes of the session, submit corrections to the Secretariat. The Chairman may, under special circumstances, in consultation with the Secretary-General, extend the time for the submission of the corrections. In the case the corrections are contested the Chairman of the Commission or the Chairman of the subsidiary body whose minutes they are shall resolve the disagreement after having listened to, if necessary, the tape recording of the discussions. If the disagreement persists, the Commission or the subsidiary body shall decide. The corrections shall be published in a distinct volume after the closure of the session. Rule 40 : Distribution of the Minutes of the Private Sessions and Public Sessions 1. The final summary minutes of the public and private sessions shall be documents intended for general distribution unless, under exceptional circumstances, the Commission decides otherwise. 2. The minutes of the private sessions of the Commission shall be distributed forthwith to all members of the Commission and to any other participants in the sessions. 5