(5) The decision shall become binding on the first day of the elevent month following the date of its
adoption for all Contracting Parties that voted for it and have not within that period notified the Executive
Secretary in writing that they are unable to accept the decision. However, such notification may be withdrawn
at any time; the withdrawal shall become effective upon receipt by the Executive Secretary. Such a decision
shall become binding on any other Contracting Party which has notified the Executive Secretary in writing
that it is able to accept the decision from the moment of the receipt of that notification or on the first day of
the eleventh month following the date of the adoption of the decision, whichever is later.