| Data Protection Act 2018 | 2018 c. 12 | Act | modified | The Buckinghamshire (Structural Changes) Order 2019 | 2019 No. 957 | art. 15(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Act | modified | The Northamptonshire (Structural Changes) Order 2020 | 2020 No. 156 | art. 17(2)(e) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Act | applied | The Channel Tunnel (Arrangements with the Kingdom of the Netherlands) Order 2020 | 2020 No. 916 | art. 4(3) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Act | excluded | The Channel Tunnel (Arrangements with the Kingdom of the Netherlands) Order 2020 | 2020 No. 916 | art. 4(4) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Act | applied by Regulation (EU) No. 625/2017, Art. 143 (as substituted) | The Official Controls (Animals, Feed and Food, Plant Health etc.) (Amendment) (EU Exit) Regulations 2020 | 2020 No. 1481 | reg. 27(3) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Act | modified | Dormant Assets Act 2022 | 2022 c. 5 | s. 25 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Act | applied | The Cumbria (Structural Changes) Order 2022 | 2022 No. 331 | art. 18(2)(e) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 9A and cross-heading | inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 72(7) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Pt. 2 Ch. 2 heading | substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 7 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Pt. 2 Ch. 3 heading | substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 27 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Pt. 2 Ch. 3 | applied by Regulation (EU) No. 625/2017, Art. 143 (as substituted) | The Official Controls (Animals, Feed and Food, Plant Health etc.) (Amendment) (EU Exit) Regulations 2020 | 2020 No. 1481 | reg. 27(3) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 17 cross-heading | substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 21 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 6 cross-heading | words substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 8 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 15 cross-heading | words substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 18 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 19 and cross-heading | omitted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 86(6) | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 18 heading | words inserted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 24(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 17A and cross-heading | omitted | Data (Use and Access) Act 2025 | 2025 c. 18 | Sch. 9 para. 12 | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 22 and cross-heading | omitted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 30 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 28 heading | words substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 36(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 21 cross-heading | substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 28 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 21 heading | substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 29(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 45 cross-heading | omitted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 79(5) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 44 cross-heading | substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 79(3) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 44 heading | word omitted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 79(4) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 71A and cross-heading | inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 84(6) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 74B heading | substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | Sch. 8 para. 5(2) | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 75 heading | words substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | Sch. 8 para. 6(2) | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 76 heading | words substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | Sch. 8 para. 7(2) | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 77 cross-heading | substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | Sch. 8 para. 8 | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 77 heading | substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | Sch. 8 para. 9(2) | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | Pt. 5-7 | applied in part (with modifications) by S.I. 2003/2426, reg. 31, Sch. 1 (as substituted) | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 115(5)(8) Sch. 13 | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 125 heading | word substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 92(3)(a) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 140 cross-heading | inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 95 | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 120A-120D and cross-heading | inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 91(3) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 115 heading | words substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 47(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 118 heading | substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 50(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 114 and cross-heading | omitted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 118(4) | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 114A and cross-heading | inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 117(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | Pt. 6 | amendment to earlier affecting provision S.I. 2016/696, Sch. 2 | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 105 | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 165 heading | words inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | Sch. 10 para. 19 | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 166 heading | words inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | Sch. 10 para. 20(2) | Not yet | |
| Data Protection Act 2018 | 2018 c. 12 | s. 160 cross-heading | words inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 102(3) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 180 cross-heading | substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 104(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 168 heading | words substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 69(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 183A and cross-heading | inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 106(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 186 heading | substituted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 106(4)(a) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 1(2) | words substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 2(2) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 1(3) | words substituted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 2(3) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 1(4) | words omitted | The Data Protection, Privacy and Electronic Communications (Amendments etc) (EU Exit) Regulations 2019 | 2019 No. 419 | Sch. 2 para. 2(4) | Yes | |
| Data Protection Act 2018 | 2018 c. 12 | s. 1(5) | words inserted | Data (Use and Access) Act 2025 | 2025 c. 18 | s. 90(2) | Yes | |