| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 1(3) | revoked | The Energy (Euratom Decisions and Miscellaneous Provisions) (Amendment and Revocation) Regulations 2025 | 2025 No. 514 | reg. 4(2) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words inserted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 4(a) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words inserted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 4(b) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words substituted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 4(c) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words inserted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 4(d) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words substituted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 4(e) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words inserted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 4(f) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words inserted | The Storage of Carbon Dioxide (Amendment of the Energy Act 2008 etc.) Regulations 2011 | 2011 No. 2453 | reg. 14(2) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words substituted | The Natural Resources Body for Wales (Functions) Order 2013 | 2013 No. 755 | Sch. 4 para. 131(2) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words substituted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 46(a) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 46(b) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words substituted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 46(c) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 46(d) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | words substituted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(2) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2 | word substituted | The Retained EU Law (Revocation and Reform) Act 2023 (Consequential Amendments) Regulations 2025 | 2025 No. 82 | Sch. 13 para. 4(2)(a) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2A-2C | inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 47 | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2A(2)(a)(ii) | words inserted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(3) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2B(2) | words substituted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(4) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2C(1)(b) | words inserted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(5) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2C(4)(b) | words substituted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(7) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2C(4)(b) | word omitted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(8) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 2C(4)(c) and word | omitted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(6) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(1A) | inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(a) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(2) | substituted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(b) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(2)(a) | words substituted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 5(a)(i) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(2)(b)(i)(ii) | substituted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 5(a)(ii) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(2A)-(2E) | inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(c) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(2D)(b) | words substituted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(9) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(3) | words substituted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(7) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(3)(b) | word omitted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(8) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(3)(c)(ii) | words inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(d) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(4) | word inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(e)(i) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(4)(a)(b) | substituted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 5(b) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(4)(b)(ii) | words inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(e)(ii) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(4)(b)(ii) | word omitted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(8) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(4)(b)(iv) | words inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(e)(iii) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(5) | substituted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 5(c) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(5)(c) and word | inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(f) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(5A)(5B) | inserted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 5(d) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(5A) | substituted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(g) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(5A)(a)(iii) | word omitted | The Pipe-lines, Petroleum, Electricity Works and Oil Stocking (Miscellaneous Amendments) (EU Exit) Regulations 2018 | 2018 No. 1325 | reg. 5(8) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(5B) | omitted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(h) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(6) | words inserted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 5(e)(i) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(6) | words inserted | The Pipe-line Works (Environmental Impact Assessment) (Amendment) Regulations 2007 | 2007 No. 1992 | reg. 5(e)(ii) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(6) | words inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(i) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(7) | inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 48(j) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 3(7) | words substituted | The Conservation of Habitats and Species Regulations 2017 | 2017 No. 1012 | Sch. 6 para. 12 | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 4(1)(a) | substituted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 49(a) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 4(1A) | inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 49(b) | Yes | |
| The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 | 2000 No. 1928 | reg. 4(2) | words inserted | The Offshore Petroleum Production and Pipe-lines (Environmental Impact Assessment and other Miscellaneous Provisions) (Amendment) Regulations 2017 | 2017 No. 582 | reg. 49(c) | Yes | |