4. The day appointed for the coming into force of—
(a)sections 77 and 78 (Class 1B contributions),
(b)section 84(1) (consequential amendments) so far as relating to paragraphs 74, 76 to 78 and 84 to 86 of Schedule 12,
(c)section 88 (repeals) so far as relating to Parts VI and VII of Schedule 13,
(d)paragraphs 74, 76 to 78 and 84 to 86 of Schedule 12 (consequential amendments), and
(e)Parts VI and VII of Schedule 13 (repeals),
is 6th April 2000.