10(1)Section 30 applies only where the reduction in value mentioned in subsection (1) of that section (or, in a case within subsection (9) of that section, the reduction or increase in value) is after 29th March 1977.
(2)No account shall be taken by virtue of section 31 of any reduction in the value of an asset attributable to the payment of a dividend before 14th March 1989.
(3)No account shall be taken by virtue of section 32 of any reduction in the value of an asset attributable to the disposal of another asset before 14th March 1989.
(4)Section 34 shall not apply where the reduction in value, by reason of which the amount referred to in subsection (1)(b) of that section falls to be calculated, occurred before 14th March 1989.