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STATUTORY INSTRUMENTS
2025 No. 1173 (C. 58)
ENERGY
The Energy Act 2023 (Commencement No. 4) Regulations 2025
Made - - - - 6th November 2025
The Secretary of State makes these Regulations in exercise of the powers conferred by section 334(1)
of the Energy Act 2023(1).
Citation
1. These Regulations may be cited as the Energy Act 2023 (Commencement No. 4) Regulations
2025.
Provision coming into force on 2nd December 2025
2. Section 304 of the Energy Act 2023 (excluded disposal sites) comes into force on 2nd
December 2025, insofar as it is not already in force(2).
Vallance
Minister of State
6th November 2025 Department for Energy Security and Net Zero
(1) 2023 c. 52.
(2) Subsection (3) of section 304 was partially commenced by S.I. 2024/32.Document Generated: 2025-11-12
Status: This is the original version (as it was originally made). This
item of legislation is currently only available in its original format.
EXPLANATORY NOTE
(This note is not part of the Regulations)
These Regulations bring into force on 2nd December 2025 specified provisions of the Energy Act
2023 (c. 52) (“the Act”). These are the fourth set of commencement regulations under the Act.
Regulation 2 brings into force the remaining provisions of section 304, amending the Nuclear
Installations Act 1965 (c. 57) to create a route by which certain installations for the disposal of
nuclear matter can be excluded from the nuclear third party liability regime established by that Act.
NOTE AS TO EARLIER COMMENCEMENT REGULATIONS
(This note is not part of the Regulations)
The following provisions of the Energy Act 2023 have been brought into force by commencement
Regulations made before the date of these Regulations.
Provision Date of Commencement S.I. No.
Sections 103 to 106 11th January 2024 S.I. 2024/32
Section 156 10th September 2024 S.I. 2024/890
Sections 161 to 165 31st January 2024 S.I. 2024/32
Section 166(1) 31st January 2024 S.I. 2024/32
Section 166(2) 1st October 2024 S.I. 2024/957
Section 166(3) to (10) 31st January 2024 S.I. 2024/32
Section 167 31st January 2024 S.I. 2024/32
Section 168(1) 31st January 2024 S.I. 2024/32
Section 168(2) 1st October 2024 S.I. 2024/957
Section 168(3) to (5) 31st January 2024 S.I. 2024/32
Sections 171 to 173 31st January 2024 S.I. 2024/32
Sections 176 to 179 31st January 2024 S.I. 2024/32
Sections 182 to 201 10th September 2024 S.I. 2024/890
Section 209 10th September 2024 S.I. 2024/890
Sections 238 to 249 11th January 2024 S.I. 2024/32
Sections 267 to 289 11th January 2024 S.I. 2024/32
Sections 296 to 298 11th January 2024 S.I. 2024/32
Section 299(1) and (2) 11th January 2024 S.I. 2024/32
Sections 300 and 301 11th January 2024 S.I. 2024/32
Section 302 10th September 2024 S.I. 2024/890
2Document Generated: 2025-11-12
Status: This is the original version (as it was originally made). This
item of legislation is currently only available in its original format.
Provision Date of Commencement S.I. No.
Section 304(3)(partially)(3) 11th January 2024 S.I. 2024/32
Section 310 31st January 2024 S.I. 2024/32
Schedule 6 11th January 2024 S.I. 2024/32
Schedule 11 paragraphs 1 and 1st October 2024 S.I. 2024/957
2
Schedule 11 paragraph 3 31st January 2024 S.I. 2024/32
Schedule 11 paragraphs 4 and 1st October 2024 S.I. 2024/957
5
Schedule 11 paragraphs 6, 7 31st January 2024 S.I. 2024/32
and 8
Schedule 12 10th September 2024 S.I. 2024/890
Schedule 13 10th September 2024 S.I. 2024/890
Schedule 14 10th September 2024 S.I. 2024/890
Schedule 19 11th January 2024 S.I. 2024/32
Schedule 20 11th January 2024 S.I. 2024/32
Schedule 21 11th January 2024 S.I. 2024/32
(3) Sections 303 and 304 were originally brought into force by S.I. 2024/32 but the commencement of those sections (other
than section 304(3) for certain purposes) was revoked by S.I. 2024/98.
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