These Regulations are made in exercise of the powers conferred by section 8(1) of, and paragraph 21 of Schedule 7 to, the European Union (Withdrawal) Act 2018 (c. 16) in order to address failures of retained EU law to operate effectively and other deficiencies in retained EU law (under section 8(2)(c) of that Act) arising from the withdrawal of the UK from the European Union.
Link: The Civil Jurisdiction and Judgments (Civil and Family) (Amendment) (EU Exit) Regulations 2019
Source: Legislation .gov.uk