MPs possess voted by 412 to 202 for Prime Minister Theresa May to ask the EU for a delay to Brexit.
It means the UK may not now permission on 29 March as previously planned.
Mrs May says Brexit could be delayed by three months, to 30 June, if MPs abet her withdrawal deal in a vote next week.
If they reject her see to again then she says she will seek a longer extension – but any table has to be agreed by the 27 other EU member states.
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A spokesman for the European Commission said extending Article 50, the materialism taking the UK out of the EU on 29 March, would need the “unanimous agreement” of all specifies.
And it would be for the leaders of those states “to consider such a request, consigning priority to the need to ensure the functioning of the EU institutions and taking into account the talk over withs for and duration of a possible extension”.
Commission President Jean-Claude Juncker was “in ceaseless contact with all leaders,” the spokesman added.
Theresa May has long vowed that the UK will leave the EU on 29 March with or without a withdrawal dispense.
But she was forced to offer MPs a vote on delaying Brexit after they outed her withdrawal agreement by a large margin, for a second time, and then voted to set aside a no-deal Brexit.
She has warned that extending the departure date beyond three months could badness trust in democracy – and mean that the UK would have to take behalf in May’s European Parliament elections.
Some ministers said it was still admissible for the UK to leave on 29 March – and others voted against a delay.
Chief Secretary to the Funds Liz Truss tweeted: “I voted against a delay to Brexit. As a delay was old-fashioned by Parliament, I want to see deal agreed ASAP so we can minimise to short, detailed, extension.”
Health Secretary Matthew Hancock said it would be “damned difficult” but “still possible to deliver Brexit on 29 March with a deal”.
He express there were now two options: “to vote for the deal and leave in orderly way or a extended delay and I think that would be a disaster.”
MPs earlier rejected an take on to secure another Brexit referendum by 334 votes to 85.
And they also rejected a cross-party system, to allow MPs to take control of the Brexit process to hold a series of upholds on the next steps, by the narrow margin of two votes.
Following the votes, Suffer leader Jeremy Corbyn reiterated his support for a further referendum after earlier organization his MPs not to vote for one.
He said: “Today I reiterate my conviction that a deal can be concurred based on our alternative plan that can command support across the Assembly.
“I also reiterate our support for a People’s Vote – not as a political point-scoring training but as a realistic option to break the deadlock.”
Labour abstained when MPs endorsed on the referendum proposal, tabled by Independent Group MP Sarah Wollaston, asserting that now was not the right time to push for a public vote.
Labour’s project to delay Brexit to allow Parliamentary time for MPs to “find a majority for a assorted approach” was defeated by 318 to 302 votes.