Control of Mercury (Enforcement) (Amendment) Regulations 2025

Baroness Anderson of Stoke-on-Trent Excerpts

Thursday 30th October 2025 Lords Chamber

Moved by

[Baroness Anderson of Stoke-on-Trent]

That the draft Regulations laid before the House on 17 July be approved.

Relevant document: 34th Report from the Secondary Legislation Scrutiny Committee

[Baroness in Waiting/Government Whip (Baroness Anderson of Stoke-on-Trent) (Lab)]

My Lords, this instrument introduces the mechanisms to enforce the EU mercury regulation in Northern Ireland under the Windsor Framework, which maintains Northern Ireland’s dual market access to the EU single market and the UK internal market. I know that questions of democratic legitimacy and the effectiveness of the Windsor Framework’s democratic scrutiny mechanisms are a frequent area of consideration and discussion, and I am sure we will discuss them again today. This affirmative statutory instrument clearly demonstrates the purpose and benefit of the Windsor Framework, but before I set out its scope and objectives, I want to provide some further background on the arrangements applying in Northern Ireland that make this measure necessary.

Dental amalgam is a dental filling material made up of a mixture of mercury and metal alloys including silver, tin and copper. It is a stable, safe filling material that is widely used across the UK to fill cavities caused by tooth decay. Compared to alternative fillings such as composite resins, dental amalgam fillings are typically cheaper and take less time to apply. Last year, the EU introduced amendments to the EU mercury regulation that applies under the Windsor Framework. These amendments introduced a ban on the use and export of dental amalgam from 1 January 2025 and a ban on the manufacture and import of dental amalgam from 1 July 2026.

Here, we saw an issue that would pose particular difficulties for Northern Ireland. We saw Members of the Legislative Assembly scrutinise the issue and voice their concerns because an immediate ban on dental amalgam would have led to longer dental treatment times in Northern Ireland, meaning fewer patients being treated. This could ultimately worsen oral health outcomes in Northern Ireland. The Government acted on these concerns and made representations to the EU. The EU Commission recognised Northern Ireland’s specific circumstances last year, leading to the bespoke arrangements for Northern Ireland that we are discussing today.

Northern Ireland will have a much longer transition period: until 2034, or until an earlier phase-out date is agreed by the Minamata Convention on Mercury, an international treaty to which the UK and the EU are parties. It will mean that the continued use of dental amalgam in Northern Ireland is aligned with the rest of the UK.

The absence of these exemptions would have meant an immediate ban on dental amalgam use and import, which would have negative health and socio-economic impacts in Northern Ireland. For instance, mercury-free alternatives, such as composite fillings, generally require longer treatment times that could strain dental service capacity and may not be suitable for all patients. This could have resulted in longer treatment times and patient waiting lists, potentially harming oral health in Northern Ireland.

A gradual transition to mercury-free alternatives will ensure a managed phase-out, therefore minimising disruptions to Northern Ireland’s dental service provision. During this time, businesses and dentists in Northern Ireland may continue to import and use dental amalgam. Such treatment may be given to UK residents only, and imports need to be proportionate with use. This gradual phase-out of dental amalgam will allow a longer period to transition to alternative fillings. This will give dentists time to improve practice efficiency, gain experience with more complex fillings and adapt to emerging alternatives, and will support the training of dental professionals.

The dental amalgam exemptions on use and import have applied in Northern Ireland since 1 January 2025, and the authorities in Northern Ireland have taken the steps required to implement them, including issuing further guidance and engaging with dentists. The purpose of this instrument is further to strengthen the enforcement measures Northern Ireland authorities can take on the ground to support the arrangements in Northern Ireland. These include powers to enforce the prohibitions on dental amalgam export and manufacture, additional reporting requirements for dental amalgam importers, and restrictions on dental amalgam use for patients as set out in the European Commission notice. The instrument also implements the allowed exemptions to the import and use of dental amalgam while Northern Ireland gradually phases out its use.

On the issue of mercury more broadly, I recognise the concerns about its environmental impact. It is a highly toxic substance that can harm human health and the environment if improperly managed. When dental amalgam is exposed to high temperatures, such as during cremation, the mercury it contains can enter the environment as a toxic gas if there are no mercury-emission controls in place. I am happy to confirm that crematoria in Northern Ireland are fitted with control technologies to reduce mercury emissions. Under our environmental improvement plan, we are taking steps and further developing plans to reduce mercury emissions, including from crematoria. As part of this, the Government will soon publish an updated process guidance note for crematoria and the accompanying government consultation response, which will include further guidance on emission abatement technologies in crematoria.

In conclusion, this measure is clear in its purpose, ensuring that Northern Ireland authorities have the powers to enforce the EU export and manufacturing prohibitions, reporting requirements and exemptions on dental amalgam use and import, as set out in the European Commission notice. This instrument will also mean that Northern Ireland continues to benefit from exemptions on dental amalgam use and import, allowing for a longer transition period and equity of dental provision with the rest of the UK. I beg to move.

Amendment to the Motion

Moved by

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[Lord Blencathra (Con)]

My Lords, I welcome the amendment from the noble Baroness, Lady Hoey, because it allows us to debate a very important subject. It is important on two counts, as we heard in the debate: first, on the constitutional issue, and, secondly, on the merits or demerits of amalgam—and some powerful speeches were made pointing out how dangerous it can be. It has allowed us to hear an excellent opening address from the Minister.

I congratulate the noble Baroness, Lady Hoey, on two counts, the first being her assurance, and that of the noble Lord, Lord Weir, that we will finish by 7 pm. Of course, this being Northern Ireland business, I was betting on 6.55 pm. The second count is that Peers from Northern Ireland have raised the important constitutional question. I say to the noble Lord, Lord Dodds, that I do not find this tedious at all. I am afraid I share his view that, sooner or later, this is going to come to a crunch. We have yet another regulation before us here which will slowly drive a wedge between our United Kingdom and our Northern Ireland.

I had no idea about the poppies issue. I Google searched it after the noble Baroness mentioned it, and I was appalled to find that she is absolutely right—EU interference with selling poppies in Northern Ireland.

We on these Benches recognise the importance of reducing mercury use in line with the Minamata convention. We do not oppose the principle of this instrument. However, it is right that we probe the Government on how it has been implemented, particularly regarding dental amalgam and its replacement, as my noble friends have discussed.

Northern Ireland, as we know, has been granted a longer-term transition period, allowing the continued import and use of amalgam until 2034 to avoid disruption to dental services. Apart from my noble friend Lord Reay, most Members in the House seem to agree that the extension is sensible while we look for workable alternatives. What engagement has taken place with dental practitioners in Northern Ireland? How will the Government monitor the practical impacts of divergence between Northern Ireland and Great Britain? How will any future decision under the Minamata convention affect this timeline?

We note the British Dental Association’s concerns about cost and capacity. Amalgam, it says, is a widely used and affordable material, and replacing it too quickly, without proper support, could worsen access issues. My noble friend Lord Bourne also wanted reassurance on that point. On the other hand, my noble friend Lord Reay, in a very powerful speech, pointed out the severe dangers of mercury amalgam and that alternatives were available already—almost as cheap and better.

I simply do not know. I will not say that finding the answer is like pulling teeth—there is no time for silliness—but the Government ought to know. If the Government do not know now, hopefully in the next few years they will. Will we be able, before 2034, to find for the whole United Kingdom—not just Northern Ireland but the whole United Kingdom—a reasonably cheap alternative to dental amalgam?

We do not oppose this instrument, but we urge the Government to remain alert to its impact on front-line services to ensure that both patients and practitioners in Northern Ireland and the United Kingdom are properly supported. I urge the Government, as soon as possible, to work with those developing alternatives to make sure that a replacement is available to Northern Ireland and the United Kingdom as soon as practicable.

[Baroness Anderson of Stoke-on-Trent (Lab)]

My Lords, I was tempted to make a joke about filling the gap in the noble Lord’s information, given what we are talking about. Noble Lords are aware that I am passionate about Northern Ireland, and there are many issues that I thoroughly enjoy talking about with Members of your Lordships’ House. I did not realise that dental amalgam was going to be one of them, so noble Lords will have to bear with me.

I am very aware of people’s travel arrangements for this evening, so I will be short and sweet, but I will reflect on Hansard in case I have missed anyone’s comments. I also hope that my noble friend Lady Hayman is getting better, but I am not sure that watching your Lordships’ House is going to assist in that, so I hope she is having chicken soup and lying in bed.

Many points have been raised, and I will try to cover them all. There are some on which I would like to reassure noble Lords. On others, I think it might be helpful to Members of your Lordships’ House if I offered a meeting to discuss the constitutional aspects of this with regard to the Windsor Framework, because as the noble Baroness, Lady Suttie, highlighted, we have a constitutional issue here and we also have the SI at hand.

I will try to touch on many issues for reassurance, but noble Lords are aware that this is not the first, nor will it be the last, time that we talk about the effectiveness of the Windsor Framework and where some of the challenges are. I would very much welcome the opportunity to have further conversations on it.

The noble Baroness, Lady Hoey, touched on the fact that pressure was placed through discussions in Parliament and elsewhere to make sure that this issue was raised. In fact, the noble Baroness had the benefit of being the first person to table a Question of this Government on any issue, and it was on this issue on our first day out. I thought I was going to have my first outing as Northern Ireland spokesperson talking about this issue; it turns out I was not first, but I was not going to escape.

Turning to the specific concerns that were raised, I want to put noble Lords’ minds at rest about poppies. They are available to be bought, with additional materials, and are freely available in Northern Ireland. As noble Lords are aware, I would be horrified if people could not purchase them.

The EU Commission notice was touched on. The Government have considered all our obligations in developing this SI, including the nature of the notice. The arrangements are already in effect and have been since January this year. The SI strengthens the enforcement measures, and we are comfortable with where we are; the SI gives it further practicalities.

On enforcement, the Northern Ireland Environment Agency—an executive agency of DAERA—will keep accurate records of all regulatory and enforcement action undertaken, along with information provided by Northern Ireland’s Department of Health. This will enable assessment, over time, of the impact of the prohibitions and exemptions on Northern Ireland.

I also assure both the noble Baroness, Lady Hoey, and the other Members of your Lordships’ House who raised this issue that there will be no guards on the border checking people’s teeth. I know that that was a concern, but I assure noble Lords that it will not be how enforcement of this is done.

Dental tourism and members of the republic using these services was raised by several noble Lords. Republic of Ireland patients will not be entitled to NHS dentistry, and residency needs to be proven. People will still be able to access their dentist in Northern Ireland in the same way as they did before non-amalgam fillings, as they can in the Republic of Ireland, but not via the NHS.

The noble Lord, Lord Bourne, and several noble Lords asked about dental amalgam and what the Government are doing to improve dental services. State-funded healthcare is a devolved matter and responsibility of the Scottish, Welsh and Northern Ireland Governments. I was pleased to see the Northern Ireland Government announce an extra £7 million for dentistry services this year, but we are working together on both the issues that dentists currently face and these issues.

On the proposed updates to mercury regulations in Great Britain and what action is being taken in the UK to reduce mercury use, the UK will be laying legislation this year to prohibit the import, export and manufacture in Great Britain of a number of products containing intentionally added mercury. These products will also be phased out in Northern Ireland by the EU mercury regulations. The legislation will prohibit several mercury-containing products.

I apologise to the noble Baroness, Lady Bennett, as I realise that some of her issues interlay with others. The health impacts of the continued use of dental amalgam were touched upon. Dental amalgam is a well-established, safe and effective dental filling material. There is no evidence that amalgam fillings cause any harm to the health of dental patients. However, mercury, when released into the environment in large volumes, can cause harm and this is carefully managed by the UK to reduce any environmental impact.

[Baroness Bennett of Manor Castle (GP)]

Will the Minister give way?

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[Baroness Anderson of Stoke-on-Trent (Lab)]

I have not finished addressing the points the noble Baroness raised, if she will bear with me.

The noble Lord, Lord Reay, asked what we are doing on our long-term use of mercury, and about the Minamata convention. Noble Lords are aware that discussions will again be occurring at COP next week on what happens next with Minamata. The actions we are taking align with our international commitments under the Minamata Convention on Mercury, which is an international treaty. The convention is aimed at protecting health and the environment from the harmful effects of mercury, and the UK is a fully committed party to this convention. Our current measures were based on decisions made at the fourth and fifth Minamata convention of the parties.

In addressing what will happen next with our dental amalgam being in line with the Minamata Convention on Mercury, UK-wide restrictions on dental amalgam use have been in place for certain populations since 1 July 2018. These include children under the age of 15, and pregnant and breastfeeding women. Since 1 January 2019, there has been a requirement in UK law to use dental amalgam only in pre-dosed encapsulated form, and for dental facilities to be equipped with amalgam separators to minimise dental professionals’ and the environment’s exposure to mercury. There will be further discussions on dental amalgam at the upcoming Minamata conference of the parties, which starts next week. Discussions and conversations on these issues are ongoing.

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[Lord Blencathra (Con)]

I am grateful to the Minister. This is not a specific Northern Ireland point, but we heard a fairly powerful speech from the noble Baroness, Lady Bennett of Manor Castle, who said that Germany has introduced an alternative that it is only marginally more expensive than mercury amalgam. My noble friend, Lord Reay, made the point that mercury should be banned immediately because of this alternative. Will the Minister raise with the Ministers in the Department of Health and Social Care that we want a statement on these alternatives? Is the noble Baroness, Lady Bennett, right? Is my noble friend right? Do we have to wait 10 years before we have a replacement? We really could do with a statement from the Department of Health on the work that is currently happening on alternatives, such as that in Germany.

[Baroness Anderson of Stoke-on-Trent (Lab)]

I thank the noble Lord. I will raise that with my colleagues in the Department of Health. Some of these discussions are genuinely active as part of the negotiations at COP next week. We cannot withdraw dental amalgam without having cost-effective alternatives, as I would hope these alternatives are.

As ever, it is a privilege to spend time talking about the impact of legislation on Northern Ireland. I am grateful that everyone has stayed on a Thursday evening to discuss it with us, and I wish everyone safe travels.

[Baroness Bennett of Manor Castle (GP)]

I thank the Minister for the offer of a letter about the gold mining issues. All these are related, because it is the amount of mercury in the environment, globally, that matters. I mentioned a study about British seafood—fish and mussels—which was produced literally a couple of hours ago. I am aware that it is not the Minister’s department, but I hope that, when she is recovered soon, the noble Baroness, Lady Hayman, or the relevant person could write to me on the fish study as well.

[Baroness Anderson of Stoke-on-Trent (Lab)]

As I said, I will reflect on everything that the noble Baroness said, and I will make sure that she receives the letter.

[Baroness Hoey (Non-Afl)]

My Lords, having listened to the debate, I feel I should have declared an interest at the beginning, in that I have amalgam fillings. I am very pleased that the Minister reiterated that, whatever the issue is in the longer term, amalgam fillings are safe. We would not want to be worrying the millions of people out there who have amalgam fillings.

I know that the Minister is not the Minister for dentistry—and I am sure she does not want to add that to her title. It was a very interesting debate, much wider than I had intended, in the sense that it was a constitutional issue that I wanted to raise. It has been very helpful—and I now know where the dentists among us are sitting for when my amalgam fillings go.

I thank everyone for speaking, particularly the Minister for her response. I hope she knows how well she is thought of in Northern Ireland. I thought her response was, in the circumstances, given the Government’s policy positions, very helpful indeed. It might be helpful if she could write to me outlining exactly what the legal position of the Commission’s notice is.

Finally, this is not about dentistry—although, if we are to ban amalgam fillings, we need to start now, to make sure our dentists are able to cope, because they will certainly have extra costs, which will be an issue in Northern Ireland.

The noble Lord, Lord Dodds, in his usual way, expressed how frustrating it is now for people in Northern Ireland. At the beginning, when all this happened, a lot of people in the public thought that it was all about business—big business, small business—and nothing to do with us. Now they are seeing so many things happening—the chickens are coming home to roost, as they would say. I really hope that noble Lords listening to these Sis—which we will continue to challenge, because we need to get the information out there—will understand that Northern Ireland is being treated as a second-class part of the United Kingdom. That is not acceptable. I beg leave to withdraw my amendment.