As respects the year of assessment 1992-93 and subsequent years of assessment, the Finance Act, 1980, is hereby amended -
(a) in section 1 -
(i) by the substitution, in paragraph (b) of subsection (1), of "48 per cent." for "52 per cent." (inserted by the Finance Act, 1991), and
(ii) by the substitution, in subsection (2) (inserted by the Finance Act, 1989), of "£7,000" and "£3,500", respectively, for "£6,800" and "£3,400" (inserted by the Finance Act, 1991),
(b) in section 2 -
(i) by the substitution, in subsection (3), of "48 per cent." for "52 per cent." (inserted by the Finance Act, 1991), and
(ii) by the substitution, in subsection (6) (inserted by the Finance Act, 1989) -
(I) of "£8,000" and "£9,200", respectively, for "£7,800" and "£9,000" (inserted by the Finance Act, 1991), in paragraph (a), and
(II) of "£4,000" and "£4,600", respectively, for "£3,900" and "£4,500" (inserted by the Finance Act, 1991), in paragraph (b),
and the said paragraph (b) of subsect