Regulation 2 of these Regulations brings into force on IP completion day certain provisions of the United Kingdom Internal Market Act 2020 (c.27) (“the Act”). IP completion day is defined in Schedule 1 to the Interpretation Act 1978 (c.30) by reference to section 39(1) to (5) of the European Union (Withdrawal Agreement) Act 2020 (c.1) where it is stated to mean 31st December 2020 at 11.00 p.m.