These Regulations are made in exercise of the powers conferred by the European Union (Withdrawal) Act 2018 (c. 16) in order to address failures of retained EU law to operate effectively and other deficiencies (in particular under section 8(2)(a), (b), (f) and (g)) arising from the withdrawal of the United Kingdom from the European Union.
Link: The Environment and Wildlife (Legislative Functions) (EU Exit) Regulations 2019
Source: Legislation .gov.uk
Source: PUBLISH TO RB