21.—(1) The powers conferred by this paragraph are exercisable by the Department if it is satisfied that the Regional Agency has without reasonable excuse failed to discharge any of its functions adequately or at all.
(2) The Department may—
(a)make an order declaring the Regional Agency to be in default; and
(b)direct the Regional Agency to discharge such of its functions, in such manner and within such period or periods, as may be specified in the direction.
(3) If the Regional Agency fails to comply with the Department’s direction under sub-paragraph (2), the Department may—
(a)discharge the functions to which the direction relates itself; or
(b)make arrangements for any other person to discharge those functions on its behalf.