| Atomic Energy Authority Act 1954 | 1954 c. 32 | specified amended provision(s) | Commencement Order | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes |   commencement order for 2004 c. 20 |
| Parliamentary Commissioner Act 1967 | 1967 c. 13 | specified amended provision(s) | Commencement Order | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes |   commencement order for 2004 c. 20 |
| House of Commons Disqualification Act 1975 | 1975 c. 24 | specified amended provision(s) | Commencement Order | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes |   commencement order for 2004 c. 20 |
| Northern Ireland Assembly Disqualification Act 1975 | 1975 c. 25 | specified amended provision(s) | Commencement Order | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes |   commencement order for 2004 c. 20 |
| Radioactive Substances Act 1993 | 1993 c. 12 | specified amended provision(s) | Commencement Order | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes |   commencement order for 2004 c. 20 |
| Scotland Act 1998 | 1998 c. 46 | specified amended provision(s) | Commencement Order | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes |   commencement order for 2004 c. 20 |
| Freedom of Information Act 2000 | 2000 c. 36 | specified amended provision(s) | Commencement Order | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes |   commencement order for 2004 c. 20 |
| Energy Act 2004 | 2004 c. 20 | s. 1 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | s. 2 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | s. 10 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | s. 72 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | s. 73 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | s. 74 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | s. 75 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 1 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 2 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 3 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 4 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 5 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 6 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 7 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 8 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 9 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 10 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 11 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 12 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 13 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 14 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 15 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 16 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 17 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 18 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 1 para. 19 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 1 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 2 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 3 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 4 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 5 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 6 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 7 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 8 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 9 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 10 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 11 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 12 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |
| Energy Act 2004 | 2004 c. 20 | Sch. 15 para. 13 | coming into force | The Energy Act 2004 (Commencement No. 1) Order 2004 | 2004 No. 1973 | art. 2 Sch. | Yes | |