Made under the United Kingdom Internal Market Act 2020

1 statutory instrument made using powers in the United Kingdom Internal Market Act 2020, newest first. Each one is explained section by section in plain English.

The Control of Mercury (Enforcement) (Amendment) Regulations 2025

Published: Fri 14th Nov 25 Came into force: Wed 3rd Dec 25

The Regulations amended the Control of Mercury (Enforcement) Regulations 2017 to implement EU changes regarding dental amalgam restrictions in Northern Ireland, updating customs enforcement provisions and defining transitional relief until 2034.


The Control of Mercury (Enforcement) (Amendment) Regulations 2025 amend the 2017 Regulations to implement new restrictions on mercury, focusing specifically on dental amalgam within Northern Ireland as required by the 2024 EU amendment regulation concerning mercury.

These changes update customs enforcement powers regarding import and export prohibitions and clarify temporary exemptions for existing use and import of dental amalgam by registered dental professionals in Northern Ireland until the end of 2034, while also adding corresponding reporting duties.

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