UK Parliament · Commons Division 177 · 13 March 2017
Vote on European Union (Notification of Withdrawal) Act 2017
331 Aye / 102 No · majority 229 · 433 MPs recorded
This Act allowed the UK government to formally notify the European Union that Britain was leaving. It gave legal permission for the Prime Minister to trigger Article 50 (the official exit process), which started the Brexit process in March 2017.