UK and EU officials have agreed to submit the draft text to a Brexit agreement after months of negotiations.
A cabinet source told the BBC ,
The PM has been meeting ministers at Downing Street for one-to-one talks on the draft agreement.
Leading Brexiters, as Boris Johnson and Jacob Rees-Mogg, immediately criticized what has been said to be in the draft agreement, say it would keep the UK under EU control.
Northern Ireland's Democratic Unionist Party, which gives Theresa May vital support in key votes, said it would be "very, very hard".
But Conservative Chief Whip Julian Smith said he was "confident" it would pass When he's ready to make a commons vote, Transport Secretary Chris Grayling calls for "a little bit of calm".
Both the UK and EU hope for a special Summit of European
The details of the draft agreement have not been published.
But it is
The food and drink will be returned to Northern Ireland – the major sticking point
Some Brexiteers fear the likely arrangement will keep the UK locked in EU trade rules.
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Brexit, a proposed 21-month transition period after the UK's departure on 29 March 2019 and details of the so-called £ 39bn "divorce bill".
] The future relationship statement is expected to be shorter, with the UK and the EU's long-term trade arrangements to be settled.
No 10 said ministers are now being called to a special meeting to "consider the draft agreement
Before they do so, they want to be able to read "documentation".
Cranking into action
By BBC political editor Laura Kuenssberg
Agreement is finally in Number 10's grasp.
The text that's been taken months of officials'
Theresa May's team, even though many, is now ready for the government's hoped-for next step – political approval of them have deep reservations.
In the last 24 hours some people have been waiting for them. Some just believe the prime minister is ought to walk away.
But the government machine is now cranking into action.
Former foreign secretary Mr Johnson said the plan would remain in the customs union and "large parts" of the single market.
He told the BBC it was "utterly unacceptable to anyone who believes in democracy"
Mr Rees-Mogg warned of the UK becoming a "vassal state" with Northern Ireland " being ruled from Dublin. "
Labor leader Jeremy Corbyn said" given the shambolic nature of the negotiations, this is unlikely to be the good deal for the country. "
Pro-EU Conservative MP Justine Greening said the agreement would leave the UK with less influence and undermine its credibility.
Speaking at a rally calling for another EU referendum to be held, she said: "Even if some people in
BBC Europe editor Katya Adler
Brussels is keeping schtum this evening. This does not mean that's going on.
This seems to be a mutual understanding is not yet a deal. All eyes are now on the UK cabinet. If they approve, then the 27 EU Ambassadors scheduled to meet tomorrow may have been read by the European Commission summit could be convened with Theresa May, possibly in less than two weeks' time.
First though, all 27 EU countries and the European Parliament want to pore over the text. And that will not be with an uncritical eye.
Meanwhile, Cabinet Office minister David Lidington said that
said Attorney General Geoffrey Cox would make a statement on the Brexit deal.
MPs, he said, would get to see a full reasoned position statement legal position on the