However, the text of the 585-page withdrawal agreement remained unchanged.
"The Withdrawal Agreement is imperfect but it is the only deal on offer". It is legally binding. "These are the legally binding changes that parliament asked us to secure".
The legal advice of Attorney General Geoffrey Cox is also expected to be published.
The new system would mean 82 per cent of imports from the European Union would be tariff-free, down from 100 per cent now, while 92 per cent of imports from the rest of the world would pay no duties at the border, up from 56 percent now. It is what we do with the second chance that counts.
"There will be no third chance". "There will be no further interpretations of the interpretations; no further assurances of the re-assurances - if the meaningful vote tomorrow fails".
Discussions at official level continued this weekend on some kind of legal guarantees that might persuade MPs to back the deal.
The legal judgement on the instrument issued by Attorney General Geoffrey Cox today noted: "T$3 he legally binding provisions of the joint instrument and the content of the unilateral declaration reduce the risk that the United Kingdom could be indefinitely and involuntarily detained within the protocol's provisions at least in so far as that situation had been brought about by the bad faith or want of best endeavours of the European Union".
The government said it would not apply a tariff regime and customs border on goods transiting across the land border from Ireland to Northern Ireland but admitted that this created a "potential for exploitation" if those goods are then transported across the sea to mainland Britain for sale.
The backstop is a mechanism that keeps the United Kingdom in a ustoms union with the other EU countries in order to remove the need for checks until a permenant new trading relationship is in place.
The final document is a supplement to the Political Declaration "setting out commitments by the United Kingdom and the European Union to expedite the negotiation and bringing into force of their future relationship".
THE Irish government is persisting with preparations for a "lose, lose, lose" no deal Brexit, which taniste Simon Coveney said last night was closer than ever.
Mrs May's dash to Strasbourg came amid predictions the Prime Minister was headed for a second humiliating defeat on her Withdrawal Agreement and it remains to be seen if the concessions will be enough to see it pass through Parliament.
Sinn Fein president Mary Lou McDonald said the vote showed the "absolute disregard for the people of Ireland, for our rights, our economy and the Good Friday Agreement that is at the heart of the Tory Brexit agenda".
On the eve of Tuesday's vote in London, Ms.
The Sun reports Mr May and her aides all looked pleased when they arrived in France and went into talks about how to get the Brexit deal through.
"This is a very important moment for us".
But the European Union has repeatedly said it does not want to reopen the divorce deal, officially known as the Withdrawal Agreement, and the British government's top lawyer has failed to find a legal fix.
Nigel Dodds, deputy leader of the Democratic Unionist Party (DUP) which props up May's minority government, and Steve Baker, a leading figure in the large eurosceptic faction of her Conservative party, warned that May's deal would be defeated.
Trade minister Liam Fox has invited business leaders to join a call at 1500 GMT to discuss tariffs and Brexit, a senior company source said.
The plans include the UK Government's approach to tariff rates for imports and the Irish border if it leaves without a deal.
"It's staggering that we are in this position with only days until we are due to leave".