(1)Section 71 of the [1980 c. 48.] Finance Act 1980 (expenditure in altering or replacing quarantine premises) shall cease to have effect.
(2)Nothing in subsection (1) above applies to expenditure which—
(a)is incurred after 15th March 1988 and before 1st April 1989; and
(b)consists of the payment of sums under a contract entered into on or before 15th March 1988 by the person incurring the expenditure.
(3)Subsection (1) above shall be deemed to have come into force on 16th March 1988.