Where an order under section 247, 248, 249 or 277 is subject to special parliamentary procedure, then—
if the order is confirmed by Act of Parliament under section 6 of the Statutory Orders (Special Procedure) Act 1945, sections 284 and 287 shall not apply to the order;
in any other case, section 287 shall have effect in relation to the order as if, in subsection (4) of that section, for the reference to the date there mentioned there were substituted a reference to the date on which the order becomes operative under section 6 of that Act ("the operative date").
Where by virtue of Part XI any such action as is mentioned in section 291 is required to be embodied in an order, and that order is subject to special parliamentary procedure, then—
if the order in which the action is embodied is confirmed by Act of Parliament under section 6 of that Act, sections 284 and 288 shall not apply;
in any other case, section 288 shall apply with the substitution for any reference to the date on which the action is taken of a reference to the operative date.