18.1 The Union shall have a common seal which shall be in the safe custody of the Honorary Treasurer and this common seal shall only be used by the authority of the Executive Committee in resolution.

18.2 Contracts or instruments made by the Executive Committee on behalf of the Union to which the common seal of the Union shall be affixed shall be signed by an officer or a voting member appointed by the committee for the purpose and countersigned by the Chairperson, Honorary Treasurer or Honorary Secretary (or such members who for the time being and under the rules of the Union, act as Chairperson, Honorary Treasurer or Honorary Secretary).