| Local Government Act 2003 | 2003 c. 26 | Act | applied (with modifications) | The West Yorkshire Combined Authority (Election of Mayor and Functions) Order 2021 | 2021 No. 112 | art. 35(1)(2) Sch. 5 para. 13 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Act | applied (with modifications) | The South Yorkshire Mayoral Combined Authority (Election of Mayor and Transfer of Police and Crime Commissioner Functions) Order 2024 | 2024 No. 414 | art. 5 Sch. 1 para. 13 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | modified | The Cheshire (Structural Changes) Order 2008 | 2008 No. 634 | art. 9(9)(c) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | modified | The Bedfordshire (Structural Changes) Order 2008 | 2008 No. 907 | art. 20(7)(c) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | applied | Humber Bridge Act 2013 | 2013 c. vi | s. 8(4) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | modified | The West Suffolk (Local Government Changes) Order 2018 | 2018 No. 639 | art. 17(2)(c) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | modified | The East Suffolk (Local Government Changes) Order 2018 | 2018 No. 640 | art. 17(2)(c) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | modified | The Bournemouth, Dorset and Poole (Structural Changes) Order 2018 | 2018 No. 648 | art. 21(2)(c) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | modified | The Bournemouth, Dorset and Poole (Structural Changes) Order 2018 | 2018 No. 648 | art. 36(2)(c) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | modified | The Somerset West and Taunton (Local Government Changes) Order 2018 | 2018 No. 649 | art. 17(2)(c) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | modified | The Buckinghamshire (Structural Changes) Order 2019 | 2019 No. 957 | art. 15(2) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 1 | applied | The Cumbria (Structural Changes) Order 2022 | 2022 No. 331 | art. 18(2)(c) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 12A-12D and cross-heading | inserted | Levelling-up and Regeneration Act 2023 | 2023 c. 55 | s. 78(2) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 4 | modified by S.I. 2004/2443 reg. 1A(2) (as inserted) | The Business Improvement Districts (England) (Amendment) Regulations 2013 | 2013 No. 2265 | reg. 3(2) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | Pt. 4 | applied (with modifications) | The Business Improvement Districts (Property Owners) (England) Regulations 2014 | 2014 No. 3204 | Sch. 5 para. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 98 heading | word inserted | The Welsh Ministers (Transfer of Functions) Order 2018 | 2018 No. 644 | art. 40(3)(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 1 | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 7(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 1 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 2 | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 7(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 2 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 2(1) | word inserted | Levelling-up and Regeneration Act 2023 | 2023 c. 55 | s. 78(3)(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 2(1)(c) | inserted | Levelling-up and Regeneration Act 2023 | 2023 c. 55 | s. 78(3)(b) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 3 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 3(1)-(4)(8)(9)(11) | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 5 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 3(5)-(7)(10) | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 3(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 4 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 4(1)-(3)(5) | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 3(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 4(4)(6) | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 7(b) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 5 | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 7(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 5 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 5(1) | words inserted | Levelling-up and Regeneration Act 2023 | 2023 c. 55 | s. 78(4)(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 5(2) | words inserted | Levelling-up and Regeneration Act 2023 | 2023 c. 55 | s. 78(4)(b) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 6 | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 7(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 6 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 6 | applied by 2011 c. 13 Sch. 2 para. 7A(4)(7)(8) (as inserted) | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | s. 141(1) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 6 | applied (with modifications) by 2011 c. 13 Sch. 4 para. 4A(4)(5) (as inserted) | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | s. 141(2) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 7 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 7 | applied by 2011 c. 13 Sch. 2 para. 7A(4)(7)(8) (as inserted) | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | s. 141(1) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 7 | applied (with modifications) by 2011 c. 13 Sch. 4 para. 4A(4)(5) (as inserted) | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | s. 141(2) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 7 | applied (with modifications) | The Greater Manchester Combined Authority (Transfer of Police and Crime Commissioner Functions to the Mayor) Order 2017 | 2017 No. 470 | Sch. 1 para. 13(2)(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 7 | modified | The York and North Yorkshire Combined Authority Order 2023 | 2023 No. 1432 | art. 33(2) Sch. 5 para. 13(2) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 7(1)s. 7(2)(a)s. 7(3)(a)(b) | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 7(b) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 7(2)(b)s. 7(3)(c) | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 3(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 8 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 8(1)(2) | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 7(b) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 8(1) | word inserted | Levelling-up and Regeneration Act 2023 | 2023 c. 55 | s. 78(5)(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 8(1)(c) | inserted | Levelling-up and Regeneration Act 2023 | 2023 c. 55 | s. 78(5)(b) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 8(3) | coming into force | The Local Government Act 2003 (Commencement No. 1 and Transitional Provisions and Savings) Order 2003 | 2003 No. 2938 | art. 3(a) | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 9 | coming into force | Gorchymyn Deddf Llywodraeth Leol 2003 (Cychwyn) (Cymru) 2003 | 2003 No. 3034 | art. 2 Sch. 1 Pt. 1 | Yes | |
| Local Government Act 2003 | 2003 c. 26 | s. 9 | applied by 2011 c. 13 Sch. 2 para. 7A(4)(7)(8) (as inserted) | Anti-social Behaviour, Crime and Policing Act 2014 | 2014 c. 12 | s. 141(1) | Yes | |