a) To suspend the meeting; b) To adjourn the meeting; c) To adjourn the debate on the item under discussion; d) For the closure of the debate on the item under discussion. Rule 52 : Submission of Proposals and Amendments of Substance Unless the Commission decides otherwise, the proposals, amendments or motions of substance made by members shall be submitted in writing to the Secretariat; if a member makes the request, they shall be considered at the first sitting following their submission. Rule 53 : Decisions on Competence Subject to the provisions of Rule 45 of the present Rules of Procedure, any motion tabled by a member for a decision on the competence of the Commission to adopt a proposal submitted to it shall immediately be put to the vote before the said proposal is put to the vote. Rule 54 : Withdrawal of a Proposal or a Motion The sponsor of a motion or a proposal may still withdraw it before it is put to the vote, on condition that it has not been amended. A motion or a proposal thus withdrawn may be submitted again by another member. Rule 55 : New Consideration of Proposals When a proposal is adopted or rejected, it shall not be considered again at the same session, unless the Commission decides otherwise. When a member moves the new consideration of a proposal, only one member may speak in favour and one against the motion, after which it shall immediately be put to the vote. Rule 56 : Interventions 1. No member may take the floor at the meeting of the Commission without prior authorisation of the Chairman. Subject to Rules 50, 49, 45 and 48, the Chairman shall grant the use of the floor to the speakers in the order in which it has been requested. 2. The debates shall deal solely with the matter submitted to the Commission and the Chairman may call to order a speaker whose remarks are irrelevant to the matter under discussion. 3. The Chairman may limit the time accorded to speakers and the number of interventions which each member may make on the same issue, in accordance with Rule 44 of the present Rules. Only two members in favour of motion and two against the motion of fixing time limits shall be granted the use of the floor after which the motion shall immediately be put to the vote. For question of procedure the time accorded each speaker shall not exceed five minutes, unless the Chairman decides otherwise. When the time allotted for discussions is limited and a speaker exceeds the time accorded the Chairman shall immediately call him to order. Rule 57 : Right of Reply The right of reply shall be granted by the Chairman to any member requesting it. The member must try, while exercising this right, to be as brief as possible and to take the floor preferably at the end of the sitting at which this right has been requested. Rule 58 : Congratulations The congratulations addressed to the newly elected member to the Commission shall only be presented by the Chairman or a member designated by the latter. Those addressed to the newly elected officers shall only be presented by the outgoing Chairman or a member designated by him. Rule 59 : Condolences Condolences shall be exclusively presented by the Chairman on behalf of all the members; the Chairman may, with the consent of the Commission, send a message on behalf of all the members of the Commission. Chapter XI: Vote and Elections Rule 60 : Right to Vote Each member of the Commission shall have one vote. In the case of equal number of votes the Chairman shall have the casting vote. Rule 61 : Asking for a Vote A proposal or a motion submitted to the decision of the Commission shall be put to the vote of a member so requests. If no member asks for a vote, the Commission may adopt a proposal or a motion without a vote. Rule 62 : Required Majority 7