| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 4 | word inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(3)(a)-(c) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 4 | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(3)(e) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 4 | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(3)(f) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 4 | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(3)(g)-(k) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 4 | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(3)(l) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 4 | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(3)(m) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 4(3) | word inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(3)(d) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 8(1)(ba) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(4)(a) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 8(1A) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(4)(b) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 8(2) | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(4)(c) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 8A | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(2) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 8A | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(5) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 10(2) | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(6) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 14(2) | substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(7)(a) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 14(3) | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(7)(b)(i) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 14(3)(c) | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(7)(b)(ii) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 15(1) | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(8)(a)(i) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 15(1) | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(8)(a)(ii) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 15(2)-(4) | substituted for reg. 15(2) | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(8)(b) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 18(4) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(9) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 19(3) | words omitted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(10)(a) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 19(3) | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(10)(b) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 24(6)(e) | omitted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(11)(a)(i) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 24(6)(f) | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(11)(a)(ii) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 24(6)(ff) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(11)(a)(iii) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 24(6A)(6B) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(11)(b) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 28(2) | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(12) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 29 | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(13) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 31(b) | word omitted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(14)(a) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 31(c) | omitted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(14)(b) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 32(1) | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(15) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 33(1) | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(16)(a) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 33(2) | substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(16)(b) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 33(3) | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(16)(c)(i)(ii) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 33(3) | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(16)(c)(iii) | Not yet | |
| The Social Security Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 225 | reg. 33(4) | substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 2(16)(d) | Not yet | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 4 | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(3)(a) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 4 | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(3)(c)-(f) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 4(i) | word omitted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(3)(b)(i) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 4(ii) | omitted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(3)(b)(ii) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 8(1)(ba) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(4)(a) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 8(1A) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(4)(b) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 8(2) | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(4)(c) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 9A | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(2) | See note | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 9A | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(5) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 10(1) | words substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(6)(a) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 10(6) | substituted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(6)(b) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 10(7) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(6)(c) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 22(6A)(6B) | inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(7) | Yes | |
| The Child Support Commissioners (Procedure) Regulations (Northern Ireland) 1999 | 1999 No. 226 | reg. 26(5) | words inserted | The Social Security and Child Support Commissioners (Procedure) (Amendment) Regulations (Northern Ireland) 2007 | 2007 No. 146 | reg. 3(8) | Yes | |