| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 1(2) | words omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 4(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 1(2) | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 4(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 1(2) | words inserted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 4(c) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 1(2) | words inserted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 4(d) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 22 heading | word substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 5(2) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 22(1) | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 5(3) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 22(3)-(8) | substituted for reg. 22(3)-(5) | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 5(4) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40 heading | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(2) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(1) | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(2) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(2)-(6) | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(3)(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(2)-(6) | word substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(3)(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(4)(b) | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(4) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(6)(a) | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(5) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(6A) | inserted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(6) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(7) | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(7)(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(7)(b) | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(7)(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(7)(d) | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(7)(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(7)(g)-(o) | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(7)(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 40(8) | words omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 6(8) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 2 para. 5 | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 7(2) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 2 para. 7 and heading | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 7(3) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 2 para. 8-10 | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 7(4) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 2 para. 11 and heading | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 7(5) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 2 para. 11A(2) | words inserted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 7(6) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 2 para. 12 | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 7(7) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 heading | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(2) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 1 para. 1(5)(d) | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 9 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 3 para. 1-2 | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 10(2) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 4 para. 1 and heading | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 11(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 4 para. 2-5 | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 11(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 4 para. 7-8 | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 11(c) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 4 para. 11(a) | word substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 11(d) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 1 and heading | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(3) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 2 | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(4) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 3 and heading | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(5) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 3A | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(6) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 4 | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(6) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 5 and heading | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(7) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 6 | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(8) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 7-7A and headings | substituted for Sch. 3 Pt. 9 para. 7 and heading | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(9) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 8 | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(10) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 9 and heading | substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(11) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 10-15 | omitted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(12) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 16-16A and headings | substituted for Sch. 3 Pt. 9 para. 16 and heading | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(13) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 17(1)(b) | words inserted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(14)(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 17(2)(b) | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(14)(b)(i) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 9 para. 17(2)(b) | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 12(14)(b)(ii) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 10 para. 1 | words substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 13(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 3 Pt. 10 para. 17 and heading | added | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 13(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 7(5A)(b) | word substituted | The Social Security (Contributions) (Amendment No. 5) Regulations 2003 | 2003 No. 2085 | reg. 14(2) | Yes | |