The day appointed for the coming into force of—
(a) Schedule 8, paragraph 19 (joint citations) and section 31(1) (minor and consequential amendments) so far as it relates to it, is 21st July 1989;
(b) the provisions of the Act specified in Part I of the Schedule to this Order, for the purpose only of authorising the making under the Social Security Act 1975 , the Social Security (No. 2) Act 1980 or the Social Security Act 1986 as amended thereby of regulations which are expressed to come into force on or alter 9th October 1989, is 21st July 1989;
(c) the provisions of the Act specified in Part II of the Schedule to this Order, is 1st October 1989;
(d) section 1 (amendments relating to primary Class 1 contributions) in relation to contributions in respect of earnings paid in any tax week beginning on or after 5th October 1989, is 5th October 1989;
(e) the provisions of the Act specified in Part III of the Schedule to this Order, is 5th October 1989;
(f) the provisions of the Act specified in Part I of the Schedule to this Order, to the extent that they do not come into force on 21st July 1989, is 9th October 1989;
(g) section 5 (liability of parents to maintain children under the age of nineteen in respect of whom income support is paid), section 8 (mobility allowance: increase of age limit to 80 years) and Schedule 8, paragraphs 2,3,7 and 16 and section 31(1) (minor and consequential amendments) so far as it relates to those paragraphs, is 9th October 1989.
(h) the provisions of the Act specified in Part IV of the Schedule to this Order is 9th October 1989.