These Regulations are made under section 31 of the European Union (Future Relationship) Act 2020 (c. 29) and implement Article 311(1)(f), Article 312(1) and Article 317(1) to, and Annex 29 of, the Trade and Cooperation Agreement between the European Union and the European Atomic Energy Community, of the one part, and the United Kingdom of Great Britain and Northern Ireland, of the other part (“the Trade and Cooperation Agreement”), for the purposes of developing technical procedures for electricity trading in the day-ahead market timeframe. It also implements Article 310 of the Trade and Cooperation Agreement in respect of designating a regulatory authority for specified purposes relating to electricity and gas.