
1 

(1) These Regulations may be cited as the Control of Mercury (Enforcement) (Amendment) Regulations 2025 and come into force on the 21st day after the day on which they are made.
(2) An amendment made by these Regulations has the same extent as the provision amended.
2 
The Control of Mercury (Enforcement) Regulations 2017 are amended in accordance with regulations 3 and 4.
3 
In regulation 33(2)—
(a) in paragraph (h), for “.” substitute “;”;
(b) after paragraph (h), insert—“
(i) with respect to Northern Ireland, Article 10(7) first subparagraph (which prohibits the export of dental amalgam);
(j) with respect to Northern Ireland, after 31st December 2034, Article 10(7) second subparagraph in so far as it prohibits the import of dental amalgam.”.
4 

(1) In Schedule 1, in paragraph 1, in the table—
(a) after the entry relating to Article 9(1) insert—“
With respect to Northern Ireland, Article 10(2a), subject to paragraph 3 of this Schedule Prohibits the use of dental amalgam for dental treatment, except when deemed necessary”;
(b) after the entry relating to Article 10(6) second subparagraph insert—“
With respect to Northern Ireland, Article 10(7) first subparagraph Prohibits the export of dental amalgam
With respect to Northern Ireland, Article 10(7) second subparagraph, subject to paragraph 3 of this Schedule Prohibits the import and manufacturing of dental amalgam”;
(c) after the entry relating to Article 14(3) second subparagraph insert—“
With respect to Northern Ireland, Article 18(1a) Requires importers and manufacturers of dental amalgam to report amounts of dental amalgam imported or manufactured”.
(2) In Schedule 1, after paragraph 2, insert—“
3. For the purposes of this Schedule, with respect to Northern Ireland, before the end of 31st December 2034—
(a) Article 10(2a) of the Mercury Regulation is to be read as not applying to the use of dental amalgam, by a registered dentist or registered dental care professional, in dental treatment in Northern Ireland of a person residing in the United Kingdom;
(b) Article 10(7) second subparagraph of the Mercury Regulation is to be read as not applying to the import of dental amalgam into Northern Ireland for use by a registered dentist or registered dental care professional, in dental treatment in Northern Ireland of a person residing in the United Kingdom.
4. In paragraph 3—
 “registered dental care professional” has the same meaning as in section 53(1) of the Dentists Act 1984;
 “registered dentist” has the same meaning as in section 53(1) of the Dentists Act 1984.”.
Emma Hardy
Parliamentary Under Secretary of State
Department for Environment, Food and Rural Affairs
12th November 2025