After the end of the transition period, EU legislation will no longer apply to the UK. This means that, for example, if your UK-based company holds or is covered by a REACH authorisation for certain uses of an Annex XIV substance, the conditions of the authorisation no longer apply to you.

Authorisations granted to UK-based companies will no longer exist, so EU-based companies relying on such authorisations will need to find suppliers with valid authorisations in the EU/EEA, or apply for new authorisations themselves.

A UK-based company can transfer its application or authorisation e.g. to an only representative in the EU. We recommend that you make a formal agreement with the only representative that takes effect at the same time as the transition period expires. The transfer shall be notified in REACH-IT as early as possible following the instructions in the 'How to transfer your UK REACH registrations prior to the UK withdrawal from the EU' guide.