"On 29 March 2017, the European Council has received the notification by the United Kingdom of its intention to withdraw from the European Union and Euratom. This allows for the opening of negotiations as foreseen by the Treaty.
"European integration has brought peace and prosperity to Europe and allowed for an unprecedented level and scope of cooperation on matters of common interest in a rapidly changing world.
"Therefore, the Union's overall objective in these negotiations will be to preserve its interests, those of its Member States, its citizens and its businesses.
"The United Kingdom's decision to leave the Union creates significant uncertainties that have the potential to cause disruption, in particular in the UK but also in other Member States.
"Citizens who have built their lives on the basis of rights flowing from the British membership of the EU face the prospect of losing those rights. Businesses and other stakeholders will lose the predictability and certainty that come with EU law.
"With this in mind, we must proceed according to a phased approach giving priority to an orderly withdrawal. In these negotiations the Union will act as one. It will be constructive throughout and will strive to find an agreement.
"This is in the best interest of both sides.
"The Union will work hard to achieve that outcome, but it will prepare itself to be able to handle the situation also if the negotiations were to fail.
"These guidelines define the framework for negotiations under Article 50 TEU and set out the overall positions and principles that the Union will pursue throughout the negotiation.
"The European Council will remain permanently seized of the matter, and will update these guidelines in the course of the negotiations as necessary."