THE UK will not be given a free trade deal by the EU in the next two years, and a transition arrangement to cushion its exit after 2019 can last no longer than three years, a European Parliament resolution has stated, in the first official response by the EU institutions to the triggering of Article 50 by Theresa May.

A leaked copy of the resolution, on which the EU’s chief Brexit negotiator, Michel Barnier, has been a closely involved, lays bare the tough path ahead for Britain as the historic process of withdrawing from the trade bloc begins.

Across 11 pages of clauses, May is warned that the EU will stridently protect its political, financial and social interests, and that the position for the UK even during the transition period will not be as positive as it is today.

A withdrawal agreement, covering financial liabilities, citizens’ rights and the border in Ireland, will need to be accepted by a qualified majority of 72 per cent of the EU’s remaining 27 member states, representing 65 per cent of the population.

The agreement would then need to be approved by the European Parliament, voting by a simple majority.

Barnier has said that any free trade deal, to be struck after the UK leaves, would be a “mixed agreement” requiring ratification by the national parliaments of the 27 states, plus consent by the European parliament.

Sir Tim Barrow, the UK’s Permanent Representative to the EU, delivered a letter to the European Council President, Donald Tusk, at 12.30pm yesterday notifying the EU of Britain’s intention to leave, as May stood up in the House of Commons to make a statement to MPs.

Addressing a press conference half an hour later, Tusk said: “There is no need to pretend that this is a happy day, neither in Brussels or in London. After all most Europeans, including almost half the British voters, wish that we would stay together not drift apart.”

Tusk said that Brexit would bind the remaining 27 member states together, and that the Council and the European Commission had a strong mandate to protect the EU’s interests. But he added: “As for me I will not pretend I am happy…”

The European Parliament’s resolution, leaked to The Guardian, which is understood to echo the thinking of the European Commission and the European Council, whose members comprise the 27 remaining EU states, says Brexit will be an “unprecedented and regrettable event as a member state has never left the European Union before” but that “this exit must be arranged in an orderly fashion so as not to negatively affect the European Union, its citizens and the process of European integration”.

The chamber’s general principles for the coming talks include that a future relationship agreement between the European Union and the UK “can only be concluded once the United Kingdom has withdrawn from the EU”, there may be a transitional deal for after 2019 to ensure that custom controls and barriers on trade are not enforced on day one of Brexit, but that these arrangements should not exceed three years and will be “limited in scope as they can never be a substitute for union membership”.

It also states that the European Court of Justice will be responsible for settling any legal challenges during the transition period and the UK will be able to revoke its notification of Article 50 but this must be “subject to conditions set by all EU27 so they cannot be used as a procedural device or abused in an attempt to improve the actual terms of the United Kingdom’s membership”.

Among its other points it said Britain cannot seek to negotiate any free trade deals with other countries while it is still an EU member state and there will be no special deal for the City of London “providing UK-based undertakings preferential access to the single market and, or the customs union”.

It said the cut-off date after which EU nationals coming to the UK lose the automatic right to residency in the UK must not be before March 29, 2019, when the country leaves the EU, or the British Government will be breaking EU law.

Britain should pay all its liabilities “arising from outstanding commitments ... contingent liabilities and other financial costs that arise directly as a result of its withdrawal”.

The European Parliament’s resolution is non-binding but it will have the right to veto any deal in 2019, and it has been working with the European Commission on setting out the acceptable parameters for the negotiations in this first intervention.

The resolution, which will be voted on next Wednesday in Strasbourg, calls for the EU’s remaining 27 member states to “act in unity in the defence of the European union’s interests and its integrity” and suggests the model for the future could be a form of associate membership, currently enjoyed by Ukraine.