Sch 5A para 13
(1) Sub-paragraph (2) applies where, having completed the consultation process in relation to their proposals for altering a scheme— (a) a planning authority intend to alter the scheme (whether in the terms proposed or otherwise), and (b) the intended alteration would have the effect of— (i) excluding a place from the area to which the scheme relates, (ii) withdrawing authorisation granted by the scheme, or (iii) making the authorisation granted by the scheme subject to new or more stringent conditions, limitations or exceptions. (2) The intended alteration may not be made before the end of the day that falls 12 months after the consultation process was completed. (3) For the purpose of this paragraph, the consultation process in relation to proposals to alter a scheme is completed— (a) on the last day of hearings in relation to the proposals required by regulations under paragraph 11(1), or (b) if no such hearings are required in relation to the proposals, on the last day that representations in relation to the proposals could be validly submitted for the purpose of paragraph 10.