These Regulations are made in exercise of the powers conferred by 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 (in particular under paragraphs (a) and (g) of section 8(2)) arising from the withdrawal of the United Kingdom from the European Union. They amend the Road Vehicles and Non-Road Mobile Machinery (Type-Approval) (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/648) (“the principal Regulations”) to—