The repeal of these last remaining provisions ended the automatic incorporation into UK law of all future EU laws (with all previous EU laws being retained and transferred into UK law under the European Union (Withdrawal) Act 2018), and most future judgments of the ECJ as well as the regulations of the European Union Customs Union, the European Single Market, the Common Agricultural Policy and the Common Fisheries Policy, after 48 years on the statute book, bringing to an end decades of political debate and discussions about the constitutional significance of the Act and its effect on the ancient principle of Parliamentary sovereignty.