| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | Order | modified by S.I. 2019/289, reg. 5, Sch. 3 (as amended) | The Waste (Amendment) (EU Exit) Regulations (Northern Ireland) 2020 | 2020 No. 284 | reg. 3(3)(5) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 3(a) | words substituted | The Air Quality (Amendment, etc.) Regulations (Northern Ireland) 2018 | 2018 No. 215 | reg. 2(2) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 7(1)(a) | words substituted | The Waste Regulations (Northern Ireland) 2019 | 2019 No. 240 | reg. 12 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 8(2)(e) | words substituted | The Air Quality (Amendment, etc.) Regulations (Northern Ireland) 2018 | 2018 No. 215 | reg. 2(3) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 9 | omitted | The Environment (Miscellaneous Amendments) (Northern Ireland) (EU Exit) Regulations 2019 | 2019 No. 584 | reg. 19 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 10(3)(a) | words substituted | The Environment (Miscellaneous Amendments) (Northern Ireland) (EU Exit) Regulations 2019 | 2019 No. 584 | reg. 20 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 10(3)(a) | word substituted | The Retained EU Law (Revocation and Reform) Act 2023 (Consequential Amendment) Regulations 2023 | 2023 No. 1424 | Sch. para. 49(2)(a) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 13(1) | repealed | Environmental Better Regulation Act (Northern Ireland) 2016 | 2016 c. 13 | s. 17(2) Sch. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 13(2) | words substituted | Environmental Better Regulation Act (Northern Ireland) 2016 | 2016 c. 13 | s. 17(3) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 13(3)(a) | word inserted | Environmental Better Regulation Act (Northern Ireland) 2016 | 2016 c. 13 | s. 17(4) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 13(3)(b)(c) | repealed | Environmental Better Regulation Act (Northern Ireland) 2016 | 2016 c. 13 | s. 17(5) Sch. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 13(5) | words substituted | Environmental Better Regulation Act (Northern Ireland) 2016 | 2016 c. 13 | s. 17(6) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 14(5)(a) | words substituted | The Environment (Miscellaneous Amendments) (Northern Ireland) (EU Exit) Regulations 2019 | 2019 No. 584 | reg. 21 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 14(5)(a) | word substituted | The Retained EU Law (Revocation and Reform) Act 2023 (Consequential Amendment) Regulations 2023 | 2023 No. 1424 | Sch. para. 49(2)(b) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 15(1)(b)(i) | words substituted | The Environment (Miscellaneous Amendments) (Northern Ireland) (EU Exit) Regulations 2019 | 2019 No. 584 | reg. 22 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 15(1)(b)(i) | word substituted | The Retained EU Law (Revocation and Reform) Act 2023 (Consequential Amendment) Regulations 2023 | 2023 No. 1424 | Sch. para. 49(2)(c) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 16(1)(b) | words repealed | Environmental Better Regulation Act (Northern Ireland) 2016 | 2016 c. 13 | s. 18(2) Sch. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 18(1)(b) | words repealed | Environmental Better Regulation Act (Northern Ireland) 2016 | 2016 c. 13 | s. 18(3) Sch. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 22(1)(a) | words substituted | The Environment (Miscellaneous Amendments) (Northern Ireland) (EU Exit) Regulations 2019 | 2019 No. 584 | reg. 23(b) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 22(1)(a) | word substituted | The Retained EU Law (Revocation and Reform) Act 2023 (Consequential Amendment) Regulations 2023 | 2023 No. 1424 | Sch. para. 49(2)(d) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 26(5) | words substituted | The Environment (Miscellaneous Amendments) (Northern Ireland) (EU Exit) Regulations 2019 | 2019 No. 584 | reg. 24 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 26(5) | word substituted | The Retained EU Law (Revocation and Reform) Act 2023 (Consequential Amendment) Regulations 2023 | 2023 No. 1424 | Sch. para. 49(2)(e) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 27(1) | words substituted | Environmental Better Regulation Act (Northern Ireland) 2016 | 2016 c. 13 | s. 18(4) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 28 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 29 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 30 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 31 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 32 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 33 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 34 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 34(6) | words substituted | Planning Act (Northern-Ireland) 2011 | 2011 c. 25 | Sch. 6 para. 94(a) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 34(6) | words substituted | Planning Act (Northern-Ireland) 2011 | 2011 c. 25 | Sch. 6 para. 94(b) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 35 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 36 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 37 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 38 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 38(3)(d) | words substituted | Planning Act (Northern-Ireland) 2011 | 2011 c. 25 | Sch. 6 para. 95 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 39 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 40 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 40(6)(aa) | inserted | Wildlife and Natural Environment Act (Northern Ireland) 2011 | 2011 c. 15 | s. 29(2) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 40(6A) | inserted | Wildlife and Natural Environment Act (Northern Ireland) 2011 | 2011 c. 15 | s. 29(3) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 41 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 42 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 43 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 43(1) | words substituted | Wildlife and Natural Environment Act (Northern Ireland) 2011 | 2011 c. 15 | s. 30 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 44 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 44(1)(la) | inserted | Wildlife and Natural Environment Act (Northern Ireland) 2011 | 2011 c. 15 | s. 33(2) | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 45 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 46 | coming into force | Environment (Northern Ireland) (2002 Order) (Commencement No. 1) Order (Northern Ireland) 2003 | 2003 No. 49 | art. 2 | Yes | |
| The Environment (Northern Ireland) Order 2002 | 2002 No. 3153 | art. 46(4)(a) | words substituted | Planning Act (Northern-Ireland) 2011 | 2011 c. 25 | Sch. 6 para. 96(a) | Yes | |