(1) If the appropriate Minister making a statutory instrument containing (whether alone or with other provision) any regulations under section 1 considers it is appropriate to do so in consequence of, or otherwise in connection with, the withdrawal of the United Kingdom from the EU, the instrument may provide that it comes into force, or that any provision of regulations contained in the instrument comes into force, on such day as that Minister may by regulations under this section appoint.
(2) Any power of an appropriate Minister to appoint a day under this section includes -
(a) a power to appoint different days for different purposes, and
(b) a power to appoint a time on a day if that Minister considers it appropriate to do so (including a time that has effect by reference to the coming into force of any other enactment).
(3) Any power under this section to make regulations is exercisable by statutory instrument.
(4) Subsection (5) applies in the case of a statutory instrument -
…