On 29 March 2017, the United Kingdom notified the European Council of its intention to leave the European Union. Unless a ratified withdrawal agreement establishes another date or the European Council, in accordance with Article 50(3) of the Treaty on European Union and in agreement with the United Kingdom, unanimously decides that the Treaties cease to apply at a later date, all Union primary and secondary law will cease to apply to the United Kingdom from 30 March 2019, 00:00h (CET) ('the withdrawal date'). The United Kingdom will then become a third country. These notices, which aim at preparing citizens and stakeholders for the withdrawal of the United Kingdom, set out the consequences in a range of policy areas.
In addition, EU decentralised agencies have published information in relation to the UK's withdrawal from the EU, for example the Community Plant Variety Office, the European Chemicals Agency, the European Medicines Agency and the European Union Intellectual Property Office. Furthermore, the three European Supervisory Authorities (the European Banking Authority, the European Securities and Markets Authority and the European Insurance and Occupational Pensions Authority) and the Single Supervisory Mechanism have issued opinions and guidance.
On 19 March 2018, the negotiators of the European Commission and the United Kingdom presented the progress made in the negotiation of a draft agreement on the withdrawal of the United Kingdom from the European Union. On 23 March 2018, the European Council (Art. 50) welcomed the agreement reached on parts of the legal text and called for intensified efforts to make progress on the remaining withdrawal issues. The European Council (Art. 50) further stated that nothing was agreed until everything is agreed. This means that a transition period between 30 March 2019 and 31 December 2020 may be agreed, but this is not certain at this stage. The European Council (Art. 50) therefore called on the Commission, the High Representative of the Union for Foreign Affairs and Security Policy and the Member States to continue the work on preparedness at all levels for the consequences of the United Kingdom's withdrawal, taking into account all possible outcomes. The notices of the Commission services published on this website respond to this request. They set out the consequences of the withdrawal of the United Kingdom from the European Union without a formal, ratified agreement between the United Kingdom and the European Union.