This is an accepted manuscript of an article published by ICE Publishing in Proceedings of the ICE - Management, Procurement and Law, available online: https://doi.org/10.1680/jmapl.21.00005 The accepted version of the publication may differ from the final published version.The UK left the EU, commonly referred to as ���Brexit���, on 31 January 2020. From 31 December 2020, new EU law does not apply and the European Court of Justice no longer has jurisdiction in the UK. The new EU-UK relationship, which began on 1 January 2021, is explained. The majority of the provisions of the EU-UK Trade and Cooperation Agreement (TCA) came into force in the UK on 31 December 2020. Significant issues for the construction industry are detailed including ...