| The Urban Waste Water Treatment Regulations (Northern Ireland) 1995 | 1995 No. 12 | Regulations | revoked | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 16 | Not yet | |
| The Water (Northern Ireland) Order 1999 | 1999 No. 662 | Sch. 1 para. 6 | excluded | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 8(4) | Yes | |
| The Water (Northern Ireland) Order 1999 | 1999 No. 662 | Sch. 1 para. 6 | excluded | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 10(3) | Yes | |
| The Urban Waste Water Treatment (Amendment) Regulations (Northern Ireland) 2003 | 2003 No. 278 | Regulations | revoked | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 16 | Yes | |
| The Water and Sewerage Services (Northern Ireland) Order 2006 | 2006 No. 3336 | Order | modified | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 6(1) | Yes | |
| The Water and Sewerage Services (Northern Ireland) Order 2006 | 2006 No. 3336 | art. 149(1)(a) | modified | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 6(2) | Yes | |
| The Water and Sewerage Services (Northern Ireland) Order 2006 | 2006 No. 3336 | art. 149(1)(b) | modified | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 6(4) | Yes | |
| The Water and Sewerage Services (Northern Ireland) Order 2006 | 2006 No. 3336 | art. 179 | excluded | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 9(2) | Yes | |
| The Water and Sewerage Services (Northern Ireland) Order 2006 | 2006 No. 3336 | Pt. 5 Ch. 3 | excluded | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 9(6) | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 2 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 3 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 4 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 5 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 6 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 7 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 8 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 9 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 10 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 11 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 12 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 13 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 14 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 15 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 16 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 1 Pt. I | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 1 Pt. II | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 2 para. 1 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 2 para. 2 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. I para. 1 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. I para. 2 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. I para. 3 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. I para. 4 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. I para. 5 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. III para. 1 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. III para. 2 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. III para. 3 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. III para. 4 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 3 Pt. III para. 5 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 4 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 1 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 2 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 3 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 4 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 5 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 6 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 7 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 8 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 9 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |
| The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | Sch. 5 para. 10 | coming into force | The Urban Waste Water Treatment Regulations (Northern Ireland) 2007 | 2007 No. 187 | reg. 1 | Yes | |