3.—(1) The Regional Board shall consist of—
(a)a Chair appointed by the Department;
(b)a prescribed number of persons appointed by the Department;
(c)the chief officer of the Regional Board;
(d)such other officers of the Regional Board as may be prescribed; and
(e)not more than a prescribed number of other officers of the Regional Board appointed by the Chair and the members specified in heads (b) and (c).
(2) Except in so far as regulations otherwise provide, no person who is an officer of the Regional Board may be appointed under sub-paragraph (1)(a) or (b).
(3) Regulations may provide that all or any of the persons appointed under sub-paragraph (1)(b) must fulfil prescribed conditions or hold posts of a prescribed description.