Under the European Union (Withdrawal) Act 2018, a category of “retained EU law” was created at the end of the transition period. Such law included EU-derived domestic legislation, some (previously) directly applicable EU legislation and some other EU rights that were recognised and available in UK law. Essentially, retained EU law began life as a “snapshot” of all EU law that was in place and enforceable in the UK at the end of the transition period.
However, following the end of the transition period, the Retained EU Law (Revocation and Reform) Act 2023 provided for substantial changes to the status, operation and content of retained EU law. This was done in order to remove or alter certain aspects of EU law which the UK either did not want to retain or had to amend in order to reflect its new status outside of the EU. One of the Act’s changes was that of replacing the term “retained” with “assimilated”, such that “retained EU law” ought to be referred to as “assimilated law” from 1 January 2024.
Moreover, on 1 January 2024, the UK government published a list of EU-derived domestic legislation relating to IP which fell within the scope of assimilated law. Various pieces of legislation relating to trade marks fell within the list, including the Trade Marks Act 1994, Trade Marks Rules 2008 (SI 2008/1797), European Union Trade Mark Regulations 2016 (SI 2016/229) and the Trade Marks Regulations 2018 (SI 2018/825).