| Northern Ireland Act 2000 | 2000 c. 1 | Act | | The Northern Ireland Act 2000 (Suspension of Devolved Government) Order 2002 | 2002 No. 2574 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Act | repealed(conditional) | Northern Ireland Act 2006 | 2006 c. 17 | Sch. 2 para. 3(1) | Yes |   Not applied. Conditional repeal never in force |
| Northern Ireland Act 2000 | 2000 c. 1 | Act | repealed | Northern Ireland (St Andrews Agreement) Act 2006 | 2006 c. 53 | Sch. 4 para. 1 | Yes |   This affecting Act is amended (retrospectively) by Northern Ireland (St Andrews Agreement) Act 2007 (c. 4), s. 1(1) |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 1 | | The Northern Ireland Act 2000 (Restoration of Devolved Government) Order 2000 | 2000 No. 1445 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 1 | | The Northern Ireland Act 2000 (Restoration of Devolved Government) (No.2) Order 2001 | 2001 No. 3231 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 1 | ceased to have effect | The Northern Ireland Act 2000 (Restoration of Devolved Government) Order 2007 | 2007 No. 1016 | art. 2 | Yes |   The amending Order was deemed by 2007 c. 4, s. 2(a) not to have been made |
| Northern Ireland Act 2000 (repealed) | 2000 c. 1 | s. 1(4) | words inserted | Justice (Northern Ireland) Act 2002 | 2002 c. 26 | Sch. 12 para. 77 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 1(4) | restricted | Northern Ireland Act 2006 | 2006 c. 17 | s. 2(7)(a) | Yes |   Not applied. Conditional amendment never in force |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 1(4) | word omitted | Northern Ireland (St Andrews Agreement) Act 2006 | 2006 c. 53 | Sch. 5 para. 7 | Yes |   This affecting Act is amended (retrospectively) by Northern Ireland (St Andrews Agreement) Act 2007 (c. 4), s. 1(1) |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 1(5) | words substituted | Northern Ireland (St Andrews Agreement) Act 2006 | 2006 c. 53 | Sch. 7 para. 6 | Yes |   This affecting Act is amended (retrospectively) by Northern Ireland (St Andrews Agreement) Act 2007 (c. 4), s. 1(1) |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 2(3) | excluded(conditional) | Northern Ireland Act 2006 | 2006 c. 17 | Sch. 2 para. 2(9)(a) | Yes |   Not applied. Conditional amendment never in force |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 2(3) | excluded | Northern Ireland (St Andrews Agreement) Act 2006 | 2006 c. 53 | Sch. 2 para. 4(2) | Yes |   This affecting Act is amended (retrospectively) by Northern Ireland (St Andrews Agreement) Act 2007 (c. 4), s. 1(1) |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 3 | | The Northern Ireland Act 2000 (Modification) Order 2000 | 2000 No. 1446 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 3(2)-(7) | excluded(conditional) | Northern Ireland Act 2006 | 2006 c. 17 | Sch. 2 para. 2(3) | Yes |   Not applied. Conditional amendment never in force |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 3(2)-(7) | excluded | Northern Ireland (St Andrews Agreement) Act 2006 | 2006 c. 53 | Sch. 2 para. 2(1) | Yes |   This affecting Act is amended (retrospectively) by Northern Ireland (St Andrews Agreement) Act 2007 (c. 4), s. 1(1) |
| Northern Ireland Act 2000 (repealed) | 2000 c. 1 | s. 3(8) | inserted | Justice (Northern Ireland) Act 2002 | 2002 c. 26 | Sch. 12 para. 78 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 3(11) | inserted | The Northern Ireland Act 1998 and Northern Ireland Act 2000 (Modification) Order 2004 | 2004 No. 1164 | art. 4 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 7(2) | modified(conditional) | Northern Ireland Act 2006 | 2006 c. 17 | Sch. 2 para. 2(8) | Yes |   Not applied. Conditional amendment never in force |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 7(2) | modified | Northern Ireland (St Andrews Agreement) Act 2006 | 2006 c. 53 | Sch. 2 para. 4(1) | Yes |   This affecting Act is amended (retrospectively) by Northern Ireland (St Andrews Agreement) Act 2007 (c. 4), s. 1(1) |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 7(4)-(7) | excluded(conditional) | Northern Ireland Act 2006 | 2006 c. 17 | Sch. 2 para. 2(9)(b) | Yes |   Not applied. Conditional amendment never in force |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 7(4)-(7) | excluded | Northern Ireland (St Andrews Agreement) Act 2006 | 2006 c. 53 | s. 2(7) | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 56 | applied (with modifications) | The National Assembly for Wales (Representation of the People) Order 2003 | 2003 No. 284 | Sch. 6 para. 7 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 57-60 | applied | The National Assembly for Wales (Representation of the People) Order 2003 | 2003 No. 284 | Sch. 6 para. 7 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 61 | applied (with modifications) | The National Assembly for Wales (Representation of the People) Order 2003 | 2003 No. 284 | Sch. 6 para. 9 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | s. 162 | applied | The National Assembly for Wales (Representation of the People) Order 2003 | 2003 No. 284 | Sch. 6 para. 6(2) | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 9 | | The Northern Ireland Act 2000 (Modification) Order 2000 | 2000 No. 1446 | art. 2 | Yes | |
| Northern Ireland Act 2000 (repealed) | 2000 c. 1 | Sch. para. 4(1)(ca) | inserted | Justice (Northern Ireland) Act 2002 | 2002 c. 26 | Sch. 7 para. 11(2) | Yes | |
| Northern Ireland Act 2000 (repealed) | 2000 c. 1 | Sch. para. 4(2) | words inserted | Justice (Northern Ireland) Act 2002 | 2002 c. 26 | Sch. 7 para. 11(3)(a) | Yes | |
| Northern Ireland Act 2000 (repealed) | 2000 c. 1 | Sch. para. 4(2) | words inserted | Justice (Northern Ireland) Act 2002 | 2002 c. 26 | Sch. 7 para. 11(3)(b) | Yes | |
| Northern Ireland Act 2000 (repealed) | 2000 c. 1 | Sch. para. 4(3) | words inserted | Justice (Northern Ireland) Act 2002 | 2002 c. 26 | Sch. 7 para. 11(4) | Yes | |
| Northern Ireland Act 2000 (repealed) | 2000 c. 1 | Sch. para. 4(5) (6) | words inserted | Justice (Northern Ireland) Act 2002 | 2002 c. 26 | Sch. 7 para. 11(4) | Yes | |
| Northern Ireland Act 2000 (repealed) | 2000 c. 1 | Sch. para. 5A | inserted | Justice (Northern Ireland) Act 2002 | 2002 c. 26 | Sch. 12 para. 79 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 8(3) | | The Northern Ireland Act 2000 (Modification) Order 2002 | 2002 No. 2587 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 9(4) | | The Northern Ireland Act 2000 (Modification) Order 2002 | 2002 No. 2587 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 7(6A) | inserted | Northern Ireland Assembly (Elections and Periods of Suspension) Act 2003 | 2003 c. 12 | s. 5(2) | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 11(4) | added | Northern Ireland Assembly (Elections and Periods of Suspension) Act 2003 | 2003 c. 12 | s. 5(3) | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 11A | added | Northern Ireland Assembly (Elections and Periods of Suspension) Act 2003 | 2003 c. 12 | s. 5(4) | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 13(3) | added | Northern Ireland Assembly (Elections and Periods of Suspension) Act 2003 | 2003 c. 12 | s. 5(5) | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 14 and cross-heading | added | Northern Ireland Assembly (Elections and Periods of Suspension) Act 2003 | 2003 c. 12 | s. 5(6) | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) Order 2003 | 2003 No. 1155 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) (No. 2) Order 2003 | 2003 No. 2592 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) Order 2004 | 2004 No. 1105 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) (No. 2) Order 2004 | 2004 No. 2505 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) Order 2005 | 2005 No. 868 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) (No. 2) Order 2005 | 2005 No. 2046 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 5 | restricted | Northern Ireland Act 2006 | 2006 c. 17 | s. 2(7)(b) | Yes |   Not applied. Conditional amendment never in force |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) Order 2006 | 2006 No. 1012 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) (No.2) Order 2006 | 2006 No. 2132 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Sch. para. 1(3) | modified | The Northern Ireland Act 2000 (Modification) Order 2007 | 2007 No. 1163 | art. 2 | Yes | |
| Northern Ireland Act 2000 | 2000 c. 1 | Appt. day for spec. provns. | | The Northern Ireland Act 2000 (Commencement) Order 2000 | 2000 No. 396 | art. 2 | Yes | |