Subsections (4) to (8) of section 27 of the Act shall come into force—
(a) for the purpose of enabling orders reducing any standard number applying to a primary school to be made under subsection (5) and applications for such orders to be made as mentioned in subsection (6), on 1st May 1991;
(b) for the purpose of enabling orders increasing any standard number applying to a primary school to be made under subsection (5) and applications for such orders to be made as mentioned in subsection (7), on lst September 1991; and
(c) for their remaining purposes (so far as they relate to primary schools) on the making of this Order.