8.5 The OECS Authority shall have power to make decisions on all matters within its competence. All such decisions other than decisions on procedural matters shall require the affirmative vote of all full Member States present and voting at the meeting of the OECS Authority at which such decisions were taken, provided that such decisions shall have no force and effect until the Heads of Government of those full Member States, if any, which were not present at that meeting, have within the consideration periods expressed either support for, or abstention in relation to, the decision. The absence of a response from any such Head of Government by the end of the relevant consideration period shall have thereafter the same effect as an abstention by that Member State from voting would have had if the Head of Government had been present at the meeting of the OECS Authority. The consideration period for a Head of Government is for this purpose the period terminating 30 days after that Head of Government has received from the OECS Commission advice of the decision in question.