These Regulations are made in exercise of the powers in section 8(1) of the European Union (Withdrawal) Act 2018 (c. 16) (the 2018 Act) in order to address failures of retained EU law to operate effectively and other deficiencies (in particular paragraph g of section 8(2)) arising from the withdrawal of the United Kingdom from the European Union.
Link: The Family Procedure Rules 2010 and Court of Protection Rules 2017 (Amendment) (EU Exit) Regulations 2019
Source: Legislation .gov.uk