These Regulations are made under the European Union (Withdrawal) Act 2018 as a consequence of the United Kingdom leaving the European Union. They revoke and replace the EU Export Credits Legislation (Revocation) (EU Exit) Regulations 2019 (S.I.2019/102) which contained an error in respect of the EU direct legislation which that instrument purportedly revoked.
Link: The EU Export Credits Legislation (Revocation) (EU Exit) (No. 2) Regulations 2019
Source: Legislation .gov.uk