20(1)The appropriate Ministers may by directions require a planning authority to refer any request for approval under Part 1 to them.
(2)In determining a request referred to them under this paragraph, the appropriate Ministers have the same powers as the authority making the reference.
(3)The determination by the appropriate Ministers of a request referred to them under this paragraph is final.
(4)Directions under this paragraph may—
(a)be given in relation to a specified request or requests of a specified description, and
(b)revoke or vary previous directions under this paragraph.