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Recognising your EU REACH registrations under UK REACH (grandfathering)

To help to minimise the impacts of introducing UK REACH and to provide continuity for businesses, the UK Government has implemented transitional provisions for GB-based EU REACH registration holders.

Relevant EU REACH registrations have been recognised under UK REACH, this is known as 'grandfathering'.

Grandfathering allows you to have continued access to the GB market; however, there are steps you must take using Comply with UK REACH.

No registration fee will be levied by the Agency for grandfathering your registration.

Who is this guidance for?

If a GB-based legal entity transferred their EU REACH registration to another GB-based legal entity, only the GB-based legal entity to whom the registration was transferred will be entitled to have that registration recognised under UK REACH.

It is not possible for EU-based legal entities to have their EU registrations recognised under UK REACH. UK REACH only applies in the UK, therefore legal entities based in the EU and EEA can have no obligations under this regime.

What you should do to grandfather your registration

Within 120 days of the end of the transition period, you need to:

At this stage, the information requirements mostly relate to the Annex VI of EU REACH.

Initial data to submit:

In addition to the grandfathering information you will be required to submit any relevant information from your EU registration dossier using Comply with UK REACH. If your dossier contains information for which your rights to refer have altered as a result of leaving the EU, you may wish to create a member dossier from your substance dataset. This should redact the information relating to Annex VII-XI, leaving only the Annex VI information and any attachments.

N.B. The Comply with UK REACH IT Service will only accept dossiers compiled using IUCLID 6 and above. If your dossiers are in an older IUCLID format, you will need to convert them as per the guidance on the IUCLID website.

Once you have provided this first batch of information for a substance, you will be able to see all of the other legal entities that have grandfathered their existing EU registration, along with any new registrants that have successfully inquired for that substance. At this point, you will be able to begin engaging in data-sharing negotiations with the other (potential) registrants. Please note that for substances with grandfathered registrants it will not be possible within the Comply with UK REACH service to indicate who has been appointed as lead registrant until after the 120-day post-TP window has closed.

It is possible to comply with the full information requirements within the first 120 days if the information is available to you and you have permission to refer to it for the purposes of UK REACH.

Within 2, 4 or 6 years plus 300 days of the end of the Transition Period (depending on tonnage band and hazard profile of the substance, go to table below), you must:

It is expected that where there are multiple registrants for a substance, this information will be submitted jointly. ECHA's Guidance on data-sharing remains a useful and valid document.

What GB registrants of intermediates under EU REACH must submit

You must supply the following information to the Agency within 120 days of the end of the transition period:

All of the other information submitted to ECHA in accordance with Article 17 or 18 must be submitted to the Agency within 300 days of the end of the transition period plus either 2, 4 or 6 years depending on the tonnage and hazard profile (go to table  below) of the substance being registered. This is the:

Deadline post 28 October 2021 Tonnage Hazardous property
2 years from 28 October 2021 1000 tonnes or more per year Carcinogenic, mutagenic or toxic for reproduction (CMRs) - 1 tonne or more per year
Very toxic to aquatic organisms (acute or chronic) - 100 tonnes or more per year
Candidate list substances (as at 31 December 2020)
4 years from 28 October 2021 100 tonnes or more per year Candidate list substances (as at 27 October 2023)
6 years from 28 October 2021 1 tonne or more per year  
Updated 2021-03-26