UK REACH: What It Is and How It Differs From EU REACH

A resin supplier ships the same drum to Rotterdam and to Hull. One product, one plant, one safety data sheet.

Since 2021 that drum meets two separate chemical regimes. The EU file sits with ECHA. The Great Britain file has to be built again, from scratch, with a different regulator.

Most teams find this out late. They find it out when a customer asks for a GB registration number that nobody ever made.

At a glance:

• UK REACH is the chemicals law for Great Britain: England, Scotland and Wales.
• It is a copy of EU REACH, brought into UK law in 2021, and the two have drifted apart since.
• HSE runs it. ECHA has no role in Great Britain any more.
• Northern Ireland stays under EU REACH, so goods moving from there into GB need their own notice.
• GB keeps its own candidate list and its own restrictions, and they no longer match the EU ones.
• The transitional registration deadlines have moved more than once, so check HSE before you plan.

What is UK REACH?

UK REACH is the regulation covering most chemicals made in or brought into Great Britain. HSE applies it to a substance on its own, to a substance in a mixture such as paint or ink, and to a substance in an article such as a car, a chair or a shirt.

The letters mean the same thing on both sides. REACH stands for registration, evaluation, authorisation and restriction of chemicals.

The Agency under UK REACH is the Health and Safety Executive. HSE takes the dossiers, runs the checks, and builds the GB lists. The Environment Agency works with it on the environmental side.

Your role in the chain decides your duties. HSE makes one warning very plain. A firm that was a downstream user under EU REACH may now be an importer under UK REACH, because goods from the EU now cross a border.

How the UK ended up with its own REACH

Under the European Union (Withdrawal) Act 2018, the EU REACH text was brought into UK law on 1 January 2021.

The text was copied, then edited so it would work at home. Those edits were made by a statutory instrument, The REACH etc. (Amendment etc.) (EU Exit) Regulations 2019. The key ideas of EU REACH were kept.

So the two regimes started from the same words. They have not stayed there. Each one is now amended on its own timetable, by its own authorities, in its own language.

HSE puts the point bluntly. The two regulations run independently, and you must comply with both where both apply.

Northern Ireland is on the other side of the line

Great Britain means England, Scotland and Wales. Northern Ireland is not in UK REACH.

EU REACH keeps applying in Northern Ireland, so NI businesses hold their EU status and their EU duties. The arrangement began with the Northern Ireland Protocol and was later reworked by the Windsor Framework.

That creates a route nobody expects. Goods made in Northern Ireland and sold into Great Britain are qualifying Northern Ireland goods, and they need a Northern Ireland notification rather than a GB registration.

The notification is light. There is no fee, and no registration is needed once it is made. Either the GB importer or the NI supplier can file it.

EU REACH and UK REACH side by side

The regimes rhyme, but the detail decides the work. This is the comparison worth pinning up.

One row does most of the damage. A registration held by an EU entity buys you nothing in Great Britain, and a GB registration buys you nothing in the EU.

Getting onto the GB register

There are three doors, and which one you use depends on what you were doing before 2021.

Grandfathering is for GB firms that already held an EU REACH registration. The registration was recognised in GB, with no fee, once the holder gave HSE some starting details.

A downstream user import notification, or DUIN, is for GB firms that bought from the EU rather than registering. Filing one defers the duty to register, so imports can carry on in the meantime.

A new registration is for everyone else. It starts with an Article 26 inquiry to HSE, and there is no pre-registration under UK REACH. Old ECHA pre-registrations do not count in GB.

Grandfathered and notified substances still need a full dossier in the end. HSE currently gives three deadlines, set by tonnage and hazard: 27 October 2029, 27 October 2030 and 27 October 2031.

Treat those dates as the current answer, not a fixed one. They were pushed back by The REACH (Amendment) (No. 2) Regulations 2026, and Defra has said it is still exploring other arrangements. Read the live dates on HSE before you budget for the work.

Two candidate lists, two restriction lists

When UK REACH began, every substance on the EU candidate list carried over to the GB one. They have been drifting apart ever since, because each regulator now adds substances through its own process.

GB duties follow the GB list. If you supply an article holding a listed substance above 0.1% by weight, HSE requires you to pass on enough information for safe use, including the substance name. Consumers can ask too, and you have 45 days to answer.

Restrictions split in the same way. GB now writes restrictions that the EU has not written. In 2026 the UK added lead ammunition rules to Annex 17 under The REACH (Amendment) Regulations 2026. The limit of 1% lead by weight in shot does not bite until 1 April 2029.

So the old habit of checking one list is finished. An SVHC check and an Annex XVII check now have to be run twice, once per market, against the version each regulator publishes.

What selling into both markets costs you

For a firm that ships both ways, the work roughly doubles. In practice that means:

• Two registrations, or a registration plus a notification, for each substance over a tonne.
• Two legal entities in scope, because an EU holder cannot cover GB and a GB holder cannot cover the EU.
• Two candidate list checks per part, against two lists that are no longer identical.
• Two restriction checks, because GB entries such as the lead ammunition rules have no EU twin.
• One more check for anything arriving from Northern Ireland.

None of this is hard on its own. It goes wrong because it is duplicated, and because the two copies quietly stop matching. The wider duties are the same ones described in our guide to REACH compliance and in the plain explainer of REACH.

Where Bindu fits. A two market bill of materials needs the same part checked against two lists on the day you ship, not the day you last looked. Bindu keeps the GB and EU versions side by side, screens every part against both, and pins the result to a dated record you can hand to a customer. See the REACH breakdown.

FAQ

What is UK REACH? UK REACH is the chemicals regulation that applies in Great Britain: England, Scotland and Wales. It covers substances on their own, in mixtures, and in articles, and it is run by HSE rather than ECHA.

Source: HSE: UK REACH explained

Is UK REACH the same as EU REACH? It started as the same text, brought into UK law on 1 January 2021 under the European Union (Withdrawal) Act 2018. The two now run independently, and HSE says you must comply with both where both apply.

Source: HSE: UK REACH explained

Does UK REACH apply in Northern Ireland? No. EU REACH continues to apply in Northern Ireland, and NI businesses keep their EU REACH status. Qualifying Northern Ireland goods moving into Great Britain use a Northern Ireland notification instead of a GB registration.

Source: HSE: Northern Ireland notifications

When is the UK REACH registration deadline? HSE currently gives 27 October 2029, 27 October 2030 and 27 October 2031, depending on tonnage and hazard. These dates have been extended more than once, so check the HSE page before you plan around them.

Source: HSE: downstream user import notification

Do I need to register in both the EU and Great Britain? If you place a substance on both markets at one tonne a year or more, yes. An EU registration gives no cover in GB, and a GB registration gives no cover in the EU, so each market needs its own holder and its own file.

Source: HSE: guidance for new registrants under UK REACH