From The Times 3 days ago. I've copied the whole thing as I think you have to subscribe to read it.
[[BREXIT
Brexit: Whitehall ‘won’t cope’ with no-deal
Sam Coates, Deputy Political Editor | Rachel Sylvester
February 2 2019, 12:01am, The Times
The government is worried about the impact of unforseen issues, a report warnsDOMINIC LIPINSKI/PA
A no-deal Brexit could quickly overwhelm Whitehall, the government has admitted in papers leaked to The Times.
A document drawn up as part of a contingency plan, codenamed Operation Yellowhammer, also says the government might have to go on emergency round-the-clock footing for months after a hard Brexit.
The immediate priorities in the event of no deal will be “welfare, health, transport and security of UK citizens at home and abroad, and the economic stability of the UK”, the document says.
t is a 37-page guide to working in the Department for Transport 24/7 operations centre. “The scale of the operation is potentially enormous. If there is no deal, the impacts could be felt [and] could fall across every transport mode [and possibly each sector within wider government], and could grow exponentially as . . . the capabilities of responders at all levels decrease or become overwhelmed,” it warns.
The government is worried about consequences they cannot foresee, it adds. “Critically, it has to be understood that . . . there will be issues of unanticipated impacts that arise, or impacts which had not been fully understood.”
There will be a series of 24/7 operation centres in the event of no deal which will report to the Cabinet Office. The centres go live from March 18 after a practice run on February 27 or 28.
The document says that the Department for Transport will not be able to cope with more than two emergencies at once. The Labour MP Owen Smith said: “This report lays out in brutal detail the impact of a no-deal Brexit: it’s an economic catastrophe, and the prime minister must rule it out as an option. It would damage our country for generations.”
Eloise Todd, chief executive of Best for Britain, said: “These documents are shocking and should be a wake-up call for MPs to take no-deal off the table.”
Theresa May is also being warned by Greg Clark, the business secretary, that she must secure approval for her Brexit deal in the next fortnight or millions of pounds worth of British exports may be stuck in “limbo-land”.
Ships going to the Far East take six weeks to arrive and must label their consignments before they go, so at present they will be travelling under the EU free-trade agreements.
If the UK leaves the EU without a deal, those agreements will fall and it is unclear what the status of the goods will be. Businesses might suddenly be liable for huge tariffs, or find them in quarantine for weeks. Mr Clark says this means that a deal must be agreed within two weeks, not by March 29, to avoid disaster.
• A majority of Britons oppose leaving the EU without a deal, with less than one in five saying that it would represent a good outcome. A new YouGov poll for The Times reveals that 51 per cent think a no-deal Brexit would be a bad outcome, 18 per cent think that it would be a good outcome and 17 per cent call it an “acceptable compromise]]