These Regulations are made in exercise of the powers in section 8(1) of the European Union (Withdrawal) Act 2018 (c. 16) 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. Apart from regulation 9(3)(b), these Regulations are made under the section 8 of that Act and correct deficiencies of the type mentioned in section 8(2)(a) and (g) of that Act – matters which have no practical application to the United Kingdom or are otherwise redundant, and EU references which are no longer appropriate.
Link: The Planning (Environmental Assessments and Miscellaneous Amendments) (EU Exit) (Northern Ireland) Regulations 2018
Source: Legislation .gov.uk