The Electricity and Gas etc. (Amendment etc.) (EU Exit) Regulations 2019

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 (in particular under section 8(2)(a) to (g) of that Act) arising from the withdrawal of the United Kingdom from the European Union.

Link: The Electricity and Gas etc. (Amendment etc.) (EU Exit) Regulations 2019
Source: Legislation .gov.uk