An overview of the withdrawal procedure under Article 50 of the Treaty on European Union, which was used by the UK to leave the EU at 11.00 pm (UK time) on 31 January 2020, and the UK and EU requirements for the negotiation and ratification of the UK-EU withdrawal agreement.

For information on the withdrawal agreement and its implementation into UK law, see Practice notes, Brexit: withdrawal agreement text, European Union (Withdrawal Agreement) Act 2020, and UK law after end of post-Brexit transition period: overview.