European Union (Notification of Withdrawal) Act 2017 (c. 9) EXPLANATORY NOTES, p. 4: "The power that is provided by section 1(1) applies to withdrawal from the EU. This includes the European Atomic Energy Community (‘Euratom’), as the European Union (Amendment) Act 2008 sets out that the term “EU” includes (as the context permits or requires) Euratom (section 3(2))."