Sch 4 para 6
(1) The designation is terminated if the Secretary of State or the Assembly (as the case may be) gives the designated operator notice which specifies a date when the designation is to terminate. (2) Notice under this paragraph may not be given unless the Secretary of State or the Assembly— (a) is no longer satisfied that the designated operator meets all of the conditions in Schedule 1, or (b) is satisfied that the designated operator has failed to comply with section 14. (3) Notice under this paragraph is valid only if the period between— (a) the date when the notice is given, and (b) the date specified in the notice, is such as the Secretary of State or the Assembly considers reasonable.