21.— (1) The chief executive may, with the consent of the Authority in writing, delegate any of his or her functions to a specified member of staff of the Authority, and that member of staff shall be accountable to the chief executive for the performance of the functions so delegated.

(2) The chief executive shall be accountable to the Authority for the performance of functions delegated by him or her in accordance with subsection (1).

(3) The chief executive may, with the consent of the Authority in writing, revoke a delegation made in accordance with this section.

(4) In this section “functions” does not include a function delegated by the Authority to the chief executive subject to a condition that the function shall not be delegated by the chief executive to anyone else.