| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 2(2) | definitions substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 17(1)(a) | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 2(2) | definitions substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 17(1)(b) | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 2(2) | definition substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 17(1)(c) | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 2(2) | definition substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 17(1)(d) | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 2(2) | definitions substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 17(1)(e) | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 2(2) | definitions substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 17(1)(f) | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 2(2A)(2B) | substituted for art. 2(2A) | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 17(2) | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 12-12H | substituted for art. 12-12E | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 18 | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 13 13A | substituted for art. 13 | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 19 | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | art. 16 | substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 20 | Yes | |
| Drainage (Northern Ireland) Order 1973 | 1973 No. 69 | Sch. 2A-2C | substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | Sch. 1 | Yes | |
| The Water (Northern Ireland) Order 1999 | 1999 No. 662 | art. 45(1)(1A) | substituted for art. 45(1) | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 22 | Yes | |
| The Water (Northern Ireland) Order 1999 | 1999 No. 662 | Sch. 5 | substituted | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | Sch. 2 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 2 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 3 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 4 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 5 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 6 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 7 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 8 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 9 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 10 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 11 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 12 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 13 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 14 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 15 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 16 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 17 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 18 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 19 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 20 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 21 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 22 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 23 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | Sch. 1 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |
| Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | Sch. 2 | coming into force | Drainage (Environmental Impact Assessment) Regulations (Northern Ireland) 2006 | 2006 No. 34 | reg. 1 | Yes | |