This Practice Note has been archived and is not maintained. This Practice Note considers the effect of the UK leaving the EU without a deal when dealing with the enforcement of judgments for civil and commercial claims under the Brussels Convention, Regulation (EC) 44/2001, Brussels I, Regulation (EU) 1215/2012, Brussels I (recast), the Lugano Convention 2007 and the EC-Denmark Agreement. This Practice Note considers the application of the changes made by the two UK regulations and the EU guidance to the enforcement of UK judgments in EU Member States as well as contracting states of the European Free Trade Association (EFTA) that are signatories to the Lugano Convention 2007 ie Iceland, Norway and Switzerland.) and vice versa. There are two key UK regulations dealing with the implications of a no deal Brexit on enforcement. The first is The Civil Jurisdiction and Judgments (Amendment) (EU Exit) Regulations 2019, SI 2019/479. The second is The Civil Procedure Rules 1998 (Amendment) (EU Exit) Regulations 2019, SI 2019/521 and, specifically, the amendments it makes to the Civil Procedure Rules at Part 74—enforcement of judgments in different jurisdictions. Both of these regulations come into force on exit day. In addition, provisions relating to the UK’s participation in the Hague Convention on Choice of Court Agreements 2005 after exit day are set out in The Civil Jurisdiction and Judgments (Hague Convention on Choice of Court Agreements 2005) (EU Exit) Regulations 2018, SI 2018/1124. The relevant documents setting out the position of the EU in relation to matters of enforcement is the EU notice to stakeholders titled: ‘Withdrawal of the United Kingdom and EU rules in the field of Civil Justice and Private International Law’ dated 18 January 2019, as well as a clarifying question and answer document titled: ‘Questions and Answers related to the United Kingdom’s withdrawal from the European Union in the field of Civil Justice and Private International Law’ dated 11 April 2019.