| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 8 heading | word substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(2)(a) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 8(1) | words added | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(2)(b) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 8(1) | word substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(2)(b) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 8(2) | substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(2)(c) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 8(3) | substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(2)(d) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 9(2) | words inserted | The Offshore Installations (Offshore Safety Directive) (Safety Case etc.) Regulations (Northern Ireland) 2016 | 2016 No. 406 | Sch. 14 para. 43(2)(a) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 9(3) | substituted | The Offshore Installations (Offshore Safety Directive) (Safety Case etc.) Regulations (Northern Ireland) 2016 | 2016 No. 406 | Sch. 14 para. 43(2)(b) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 11(2)(b) | words substituted | The Industrial Tribunals and Fair Employment Tribunal (Constitution and Rules of Procedure) Regulations (Northern Ireland) 2020 | 2020 No. 3 | Sch. 4 Pt. 2 para. 8 | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 12A | inserted | The Health and Safety (Fees) (Amendment) Regulations (Northern Ireland) 2014 | 2014 No. 280 | reg. 2(2) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 12A | words substituted | The Control of Major Accident Hazards Regulations (Northern Ireland) 2015 | 2015 No. 325 | Sch. 6 Pt. 2 | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | reg. 13(3) | revoked | The Control of Major Accident Hazards Regulations (Northern Ireland) 2015 | 2015 No. 325 | Sch. 7 | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 2 | words substituted | The Ionising Radiations Regulations (Northern Ireland) 2017 | 2017 No. 229 | Sch. 9 para. 10(2)(a) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 2 | words substituted | The Ionising Radiations Regulations (Northern Ireland) 2017 | 2017 No. 229 | Sch. 9 para. 10(2)(b) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 heading | word substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(a) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(i) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(ii) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(iii) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(iv) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(ix) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(v) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(vi) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(vii) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(viii) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(x) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 6 Table | words substituted | The Genetically Modified Organisms (Contained Use) Regulations (Northern Ireland) 2015 | 2015 No. 339 | reg. 34(3)(b)(xi) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 7 Table | words inserted | The Offshore Installations (Offshore Safety Directive) (Safety Case etc.) Regulations (Northern Ireland) 2016 | 2016 No. 406 | Sch. 14 para. 43(3) | Yes | |
| The Health and Safety (Fees) Regulations (Northern Ireland) 2012 | 2012 No. 255 | Sch. 9 | inserted | The Health and Safety (Fees) (Amendment) Regulations (Northern Ireland) 2014 | 2014 No. 280 | Sch. | Yes | |