| The Social Security (Crediting and Treatment of Contributions, and National Insurance Numbers) Regulations 2001 | 2001 No. 769 | reg. 5(1) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 19(2) | Yes | |
| The Social Security (Crediting and Treatment of Contributions, and National Insurance Numbers) Regulations 2001 | 2001 No. 769 | reg. 6(1) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 19(3)(a) | Yes | |
| The Social Security (Crediting and Treatment of Contributions, and National Insurance Numbers) Regulations 2001 | 2001 No. 769 | reg. 6(1) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 19(3)(b) | Yes | |
| The Social Security (Crediting and Treatment of Contributions, and National Insurance Numbers) Regulations 2001 | 2001 No. 769 | reg. 6(1) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 19(3)(c) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 3(1)-(2D) | substituted for reg. 3(1)(2) | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 4(2) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 3(3) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 4(3) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 3(4) | omitted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 4(4) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 30 | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 5 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 31 | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 6 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 50 | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 7 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 52 | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 8 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 54(3) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 9 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 55(3) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 10(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 55(3) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 10(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 60(1) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 11 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 61 | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 12 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 65(2)(a) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 13 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 65(3) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 13 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 65(4)(c) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 13 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 101(b) | words omitted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 14 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 102(1) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 15(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 102(2) | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 15(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 110(3) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 16(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 110(3) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 16(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 149(2)(b) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 17 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 155A | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2002 | 2002 No. 2366 | reg. 18 | Yes | |