(1) The Authority shall have an official seal.
(2) The affixing of the official seal of the Authority shall be in the presence of, and witnessed by —
(a) the Chairperson or the Deputy Chairperson and the Chief Corporate Officer; and
(b) the Chief Executive Officer.
(3) A document, other than a document required by law to be under seal, which is executed by, and a decision of, the Authority shall be signed by —
(a) the Chairperson or a director authorized in writing by the Chairperson to act on behalf of the Chairperson; and