21. Amendment of section 33 of Principal Act.
Section 33 of the Principal Act is amended -
(a) by the substitution for subsection (1) of the following subsection:
"(1) In this section and Part B of the Second Schedule 'revaluation year' means a year beginning on or after 1 January 1996.".
and
(b) in subsection (2) by the substitution for "paragraph 1 or 3 or both" of "any or all of paragraphs 2, 3 and 4".