The Government is to produce a white paper that is the “most significant publication on the EU since the referendum”, Brexit Secretary David Davis has said.
The paper would include “detailed, ambitious and precise explanations” of the Government’s positions, with less than 11 months remaining before Britain is due to quit the continental bloc.
It came as Theresa May’s Brexit “war cabinet” met again on Tuesday without reaching agreement on which of the two options for customs arrangements on the Irish border it will back.
The EU is putting pressure on Britain to present its preferred option at the upcoming meeting of the European Council in June, though Downing Street insists it will not put a timetable on the process.
Mr Davis said the document would set out “what would change and what would feel different” after Brexit and was an opportunity for the Government to show the thought behind its approach to the change to a domestic and EU audience.
He said: “This will be our most significant publication on the EU since the referendum. It will communicate our ambition for the UK’s future relationship with the EU, in the context of our vision for the UK’s future role in the world.”
Labour said on Tuesday it was launching a new parliamentary bid to force the Government to release details of its proposals for post-Brexit customs arrangements on the Irish border.
Jeremy Corbyn’s party has tabled a motion in the Commons for debate on Wednesday designed to break the “deadlock” over the so-called “customs partnership” and “maximum facilitation” models.
Conservative MPs were invited into Downing Street on Monday for a briefing from the PM and chief of staff Gavin Barwell on the “customs partnership”, believed to be Mrs May’s preferred option, under which the UK would collect tariffs on the EU’s behalf, and the “max fac” scheme, which involves the use of technology to minimise friction at the Irish border.
But EU chief negotiator Michel Barnier is reported to have told a Brussels meeting that it was not worth fighting about the two UK proposals, as neither of them is “realistic”.
Shadow Brexit Secretary Paul Blomfield said it was “deeply disturbing that, after yet another meeting, the Cabinet still cannot agree on the most fundamental Brexit issues”.
He added: “Ministers have finally agreed to publish a White Paper on the Government’s negotiating position, but they still don’t know what it will say.
“Labour called for a White Paper before Article 50 was triggered. However, Ministers have wasted months arguing amongst themselves rather than negotiating in the national interest.
“Today’s failure highlights the deep division at the heart of Government on the most basic of issues.
“Whether those divisions can be resolved in the next month remains to be seen. If the Cabinet can’t take the decisions, Parliament will.”
Tuesday’s 90-minute meeting of the Cabinet’s Brexit negotiations sub-committee heard presentations from Brexit Secretary David Davis and Cabinet Office minister David Lidington on the work completed so far by two ministerial working groups set up by Mrs May last week to look for improvements to the two schemes.
The meeting, attended by 11 ministers including Foreign Secretary Boris Johnson, was not asked to make a choice between the models.
No date has been announced for a further meeting.
In the House of Commons, Mr Johnson shrugged off suggestions that he had breached Cabinet collective responsibility by branding the partnership option “crazy”.
Asked whether he felt he had to abide by the convention, which requires ministers not to air their private opinions on issues of Government policy, he replied: “Of course.”
Labour’s motion would require the Government to release to Parliament all papers prepared for the sub-committee on the two customs models, including any economic analysis.
It is the latest in a string of Labour motions using an arcane parliamentary procedure to make the vote binding on the Government by issuing a “humble address” to the Queen asking her to require ministers to comply.