(1)Subject to the following provisions of this Act, the M1Mineral Workings Act 1951 (so far as unrepealed) and the M2Mineral Workings Act 1971 shall cease to have effect on 1 April 1985.
(2)Subsection (1) above does not apply to the following provisions of the 1951 Act:—
section 28 (modification of payments in lieu of restoration under ironstone leases);
sections 32 and 40(6) (temporary stopping up of highways);
section 41(2) (interpretation);
section 42(1) and (2) (Scotland); and
section 43 (citation and extent).