| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 1 | amendment | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 1 TABL Text | addition | Commission Delegated Regulation (EU) 2016/1443 | 2016 No. 1443 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 1 Table | addition | Commission Delegated Regulation (EU) 2020/1737 | 2020 No. 1737 | Regulation | See note |   This amendment by the EU not applied to legislation.gov.uk because it is brought into force after IP completion day. |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 1 Table | replacement | Commission Delegated Regulation (EU) 2020/1737 | 2020 No. 1737 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 1 Table | addition | Commission Delegated Regulation (EU) 2020/1737 | 2020 No. 1737 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 1 Table | substituted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(7)(a) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 1 Table | substituted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(7)(b) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 2 Table | addition | Commission Delegated Regulation (EU) 2020/1737 | 2020 No. 1737 | Regulation | See note |   This amendment by the EU not applied to legislation.gov.uk because it is brought into force after IP completion day. |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Annex 2 Table | substituted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(8) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 1 | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 1 | words substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(2) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 1 | words substituted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(2) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 2 Point C) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 2 Point J) | addition | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 2 Point H) | addition | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 2 Point A) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 2(a) | words substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(3)(a) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 2(c) | words substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(3)(b) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 2(c) | words substituted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(3)(a) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 2(i) | substituted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(3)(b) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(2) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(2) | words omitted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(4)(a) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(3) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(5) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(6) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(6) | words omitted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(4)(b) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(7) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(7) | omitted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(4)(c) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(8) | words substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(4)(d)(i) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(8) | words inserted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(4)(a) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(8) | words omitted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(4)(b) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 3(8)(c) | omitted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(4)(d)(ii) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 4(1) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 4(1) | words substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(5)(a) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 4(1) | words substituted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(5) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 4(3) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 4(3) | words substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(5)(b) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 4(3) | words substituted | The Controlled Drugs (Drug Precursors) (Amendment and Revocation) Regulations 2026 | 2026 No. 607 | reg. 5(5) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 4(4) | substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(5)(c) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 5(7) | addition | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 5(7) | substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(6) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 7 | completion | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 7 | words substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(7) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 8 | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 8(3) | substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(8) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 9(1) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 9(1) | words substituted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(9) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 10 | omitted | The Law Enforcement and Security (Amendment) (EU Exit) Regulations 2019 | 2019 No. 742 | reg. 13(10) | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 10(1) Point C) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |
| Regulation (EC) No 273/2004 of the European Parliament and of the Council | 2004 No. 273 | Art. 10(1) Point B) | replacement | Regulation (EU) No 1258/2013 of the European Parliament and of the Council | 2013 No. 1258 | Regulation | Yes | |