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