This section applies for the purposes of sections 33A to 33I.
The Secretary of State may by regulations substitute for any amount or percentage figure specified in these sections such other amount or percentage figure (as the case may be) as he thinks fit.
Except as provided in the following provisions of this section, a power to make regulations must be exercised by statutory instrument subject to annulment in pursuance of a resolution of either House of Parliament.
This subsection applies to regulations under subsection (2) which substitute—
(a) a percentage figure, or
(b) an amount, in a case where the change in value condition is not satisfied.
A statutory instrument containing regulations to which subsection (4) applies must not be made unless a draft of the regulations has been laid before and approved by resolution of each House of Parliament.
The change in value condition is satisfied if the Secretary of State thinks that in the case of the substitution of an amount it is expedient to make the substitution in consequence of changes in the value of money or land.
Regulations under subsection (2) may make different provision for different purposes.