Beta Help us improve this guidance - give your feedback.

Notification of status as a GB-based downstream user or distributor under EU REACH

Any GB-based legal entity intending to import a substance into GB at or above 1 tonne per year is required to submit a registration to the Agency for that substance. Now that the transition period has ended, the obligation to register also applies to the import of substances from the EU. However, where you were a downstream user or distributor under EU REACH or were regarded as a downstream user by virtue of an Only Representative (OR) agreement, transitional provisions have been put in place that aim to help minimise disruption to your business.

By submitting a notification to the Agency within the first 300 days of the end of the transition period, you effectively defer your registration obligation for up to 6 years plus 300 days after the end of the transition period.

Who is this guidance for?

If you were not previously a registrant, downstream user or distributor under EU REACH, and you wish to import chemicals into GB for the first time, you will be required to submit a new registration under UK REACH.

Downstream User Import Notification (DUIN)

GB-based companies that were downstream users or distributors prior to the end of the transition period, under EU REACH, will become importers at the point that when UK REACH enters into force. Article 127E of the statutory instrument (SI) implementing REACH in the UK provides the transitional provision for these GB-based legal entities.

Downstream users and distributors under EU REACH are able to notify The Agency regarding the substances that they wish to continue importing into GB from the EU. This notification must be made within the first 300 days after end of the transition period. Once the notification is completed, your registration obligation is effectively deferred until up to 6 years plus 300 days after the end of the transition period. If you opt not to submit a notification, then either a full registration would be due for any substances imported at or above 1 tonne per year, or that import must cease. A non-GB based manufacturer, formulator or article producer can appoint a GB-based OR to submit notifications under Article 127E on behalf of their GB-based importers. This OR can only be appointed once UK REACH is in force. GB-based importers that were regarded as downstream users due to the appointment of an EU-based OR (under EU REACH) are also able to notify under Article 127E. A newly appointed GB-based OR can also make this notification on their behalf.

A downstream user import notification (DUIN) is not a pre-registration. The concept of pre-registrations does not exist under UK REACH.

Please note, having notified under Article 127E, you are not obliged to register unless you wish to continue importing the notified substance after 300 days plus either 2, 4 or 6 years of the end of the transition period. The registration deadline is dependent on the tonnage and/or hazard profile of the substance, more information can be found in the table below.

What you need to do

The information requirements can be found in Article 127E of the Statutory Instrument.

Within 300 days of the end of the transition period, you need to:

  1. Use the Comply with UK REACH service on GOV.UK to indicate that you are an existing downstream user or distributor. At this point your UK REACH DUIN number will be issued to you. This only needs to be done once per legal entity and covers all substances that you wish to continue importing from the EU.
    • This fulfils the Article 10(a)(i) information requirement of Article 127E.
  2. Populate the downstream user import notification with information about the substances that you wish to continue importing.
    Use the template
  3. Send the completed spreadsheet to [email protected]. You should include your legal entity name and DUIN number in the subject line of the email.
    • It may be easier to fulfil some of the information requirements by attaching a Safety Data Sheet (SDS) to the email rather than including it in the spreadsheet, eg the Article 10(a)(iv) information pertaining to classification.
    • Where an SDS for a substance is attached to the email along with the spreadsheet, the spreadsheet must also list that substance.

Please note the following:

Within 300 days plus either 2, 4 or 6 years of the end of the transition period, depending on tonnage band and/or hazard profile (see table below), if you wish to continue importing into the UK from the EU, you need to:

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 document.

UK REACH tonnage bands and hazard profiles

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 2021-07-02