However, this was not the case in most areas. The EU Withdrawal Act 2018 (EUWA) took effect on 31 December 2020 and converted all EU-derived legislation and case law — including health and safety law — into national law. It “froze” the law as it stood at this point, but allowed the government to decide which laws it wants to retain, repeal or amend, subject to the provisions of the UK-EU Trade and Cooperation Agreement (TCA).