Last reviewed 2 November 2021

Information on Downstream User Import Notifications (DUIN) has been added to the guidance pages on complying with UK REACH.

GB downstream users (who do not hold an EU REACH registration) currently importing chemicals from an EU or EEA country must ensure the substances they purchase are covered by a valid UK REACH registration.

Businesses that relied on a registration held by an EU or EEA-based company before 1 January 2021 may continue importing substances as they did before. If businesses import substances in a quantity of more than one tonne per year, the substances must be registered for UK REACH.

Any businesses that notified the HSE by 27 October 2021 of their intention to continue importing substances from the EU or EEA by submitting a DUIN have effectively deferred their registration obligation for 2, 4 or 6 years from 28 October 2021.

Any GB downstream users who did not submit a DUIN in time, may still submit a notification as soon as possible if the EU REACH registered substance is imported into Great Britain at or above one tonne per year.

To submit a DUIN:

  • use the Comply with UK REACH service on GOV.UK to indicate that you are an existing downstream user or distributor or a GB-based OR submitting a notification on behalf of a downstream user or distributor. Notification only needs to be done once per legal entity and covers all substances that entity wishes to continue importing from the EU. A unique UK REACH DUIN number will be issued for each notification submitted

  • populate the downstream user import notification with information about the substances that you wish to continue to import.

  • send the completed spreadsheet to with your legal entity name and DUIN number in the subject line of the email.

A new registration must then be submitted to the HSE within 2, 4 or 6 years of 28 October 2021. Alternatively, GB downstream users can encourage their EU or EEA supplier to appoint a GB-based Only Representative, or change their source to a GB-registered supplier.