| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | words omitted | The Classification, Labelling and Packaging of Chemicals (Amendment) Regulations (Northern Ireland) 2015 | 2015 No. 265 | reg. 12(2)(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | words omitted | The Classification, Labelling and Packaging of Chemicals (Amendment) Regulations (Northern Ireland) 2015 | 2015 No. 265 | reg. 12(2)(b) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | words inserted | The Classification, Labelling and Packaging of Chemicals (Amendment) Regulations (Northern Ireland) 2015 | 2015 No. 265 | reg. 12(2)(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | words substituted | The Classification, Labelling and Packaging of Chemicals (Amendment) Regulations (Northern Ireland) 2015 | 2015 No. 265 | reg. 12(2)(d) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | words substituted | The Classification, Labelling and Packaging of Chemicals (Amendment) Regulations (Northern Ireland) 2015 | 2015 No. 265 | reg. 12(2)(e) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | words inserted | The Classification, Labelling and Packaging of Chemicals (Amendment) Regulations (Northern Ireland) 2015 | 2015 No. 265 | reg. 12(2)(f) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | words omitted | The Classification, Labelling and Packaging of Chemicals (Amendment) Regulations (Northern Ireland) 2015 | 2015 No. 265 | reg. 12(2)(g) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 2 | words substituted | The Chemicals (Health and Safety) and Genetically Modified Organisms (Contained Use) (Amendment etc.) (EU Exit) Regulations 2019 | 2019 No. 720 | Sch. 1 para. 6(2) | See note |   This amendment not applied to legislation.gov.uk. Sch. 1 para. 6 omitted immediately before IP completion day by virtue of S.I. 2020/1567, reg. 1(2), Sch. 1 para. 4 |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 3 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 3(2)(e) | revoked | The Mines Regulations (Northern Ireland) 2016 | 2016 No. 427 | Sch. 4 Pt. 2 | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 4 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 5(1)-(3)reg. 5(4)(a)(b)(5) | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 5(4)(c) | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 6 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 7 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 8 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 9 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 10 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 11 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 12 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 13 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 14 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 15(1) | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 15(2) | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(b) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 16(1) | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 16(2) | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(b) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 17(1)-(3) | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 17(4)-(5) | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 1 para. 1 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 1 para. 2 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 1 para. 3 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 1 para. 4 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 1 para. 5 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 1 para. 6 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 2 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 3 para. 1 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 3 para. 2 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 3 para. 3 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 3 para. 1 | words substituted | The Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations (Northern Ireland) 2017 | 2017 No. 90 | Sch. 7 | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 4 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(c) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 5 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 5 | words substituted | The Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations (Northern Ireland) 2006 | 2006 No. 173 | Sch. 13 para. 11(1) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 5 | words substituted | The Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations (Northern Ireland) 2010 | 2010 No. 160 | reg. 30 Sch. 5 | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 5 | words omitted | The Carriage of Explosives (Amendment) Regulations (Northern Ireland) 2012 | 2012 No. 177 | Sch. 1 | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 5 | words substituted | The Classification, Labelling and Packaging of Chemicals (Amendment) Regulations (Northern Ireland) 2015 | 2015 No. 265 | reg. 12(3) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 6 para. 1 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 6 para. 2 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |
| Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | Sch. 6 para. 3 | coming into force | Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) 2003 | 2003 No. 152 | reg. 1(a) | Not yet | |