Negotiation mandate

Article 50 of the Treaty on European Union sets out the procedure for a Member State to withdraw from the European Union. Following the UK's notification of its intention to leave the EU, negotiations began on 19 June 2017. The EU and UK negotiators agreed on the "Terms of Reference for the Article 50 TEU negotiations" which stipulates the structure of the negotiations, dates and priorities for future negotiating rounds.

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In the meantime, the UK remains a full member of the EU. This means that all existing EU rights and obligations continue to apply to the UK.

During these negotiations, the European Commission's aim will be to ensure a maximum level of transparency.

European Council (Article. 50) guidelines for Brexit negotiations

Timeline: What happens once Article 50 has been triggered?

The Treaty on European Union


The Commission's approach to transparency

The Article 50 negotiations with the United Kingdom are unique and differ from any other negotiation conducted by the European Union to date. Given their unprecedented nature, the European Commission has decided to adopt a tailor-made approach to transparency.

Michel Barnier's transparency register

Information on stakeholder outreach on Article 50 negotiations with the United Kingdom