53.—(1) Subject to paragraph (2), if a change, which is material, is made to a development consent order under the power conferred by paragraph 3(1) of Schedule 6 to the Act—
(a)the development consent order continues in force; and
(b)the change to the development consent order takes effect from the date on which the notice of the appropriate authority’s decision is notified under regulation 50, or if the change to the order is required to be made by order contained in a statutory instrument, the date specified in the order making the change.
(2) If under the power conferred by paragraph 3(1) of Schedule 6 to the Act a development consent order is revoked, the revocation shall take effect—
(a)from the date specified in the order making the revocation; or
(b)where there is no date specified, the date on which the order making the revocation is made.