In section 35 of the [1978 c. 44.] Employment Protection (Consolidation) Act 1978 (calculation of maternity pay by reference to amount of employee's weekly pay) the following subsections are inserted at the end—
“(5)The Secretary of State may by order amend subsection (1) above—
(a)by substituting for the fraction of nine-tenths referred to there, or the fraction as substituted from time to time under this subsection, such greater fraction as he considers appropriate ; or
(b)by deleting the reference to a fraction.
(6)No order shall be made under subsection (5) above unless a draft of the order has been laid before Parliament and approved by resolution of each House of Parliament.”