These Regulations are (with the exception of Part 2) made in exercise of the power in section 8 of, and paragraph 21 of Schedule 7 to, 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 under section 8(2)(a), (b) and (g) of that Act) arising from the withdrawal of the United Kingdom from the European Union.
Link: The Aviation Statistics (Amendment etc.) (EU Exit) Regulations 2019
Source: Legislation .gov.uk