All travellers into the UK may be forced to undergo a mandatory 14-day quarantine under new plans to stop a second peak of the coronavirus pandemic.
Passengers arriving at airports and ports will have to provide an address at which they will immediately self-isolate for a fortnight, with the threat of a £1,000 fine and even deportation enforcing the new rules.
This could mean Brits will have to take one month off if they want to go on a two-week holiday - two weeks for a holiday, two weeks in quarantine at home afterwards.
That's sparked fears there will be no demand for holidays abroad this year and leading to calls for clarity from the tourism industry.
The move is predicted by the Times to be announced by Prime Minister Boris Johnson in his address to the nation tomorrow, and the measure is expected to be implemented in June.
The paper reports that "authorities will conduct spot checks", with punishments for those not adhering to the rules including "fines of up to £1,000" and deportation.
A Home Office spokeswoman said: "We do not comment on leaks. The focus remains on staying at home to protect the NHS and save lives."
The aviation industry is calling on the Government to reveal specifics of the proposal amid concerns that the measures could have severe repercussions for the travel and tourism sectors.
"We need to see the details of what they are proposing", Airlines UK, which represents British Airways, EasyJet and other UK-based airlines, said in a statement.
Airlines UK issued a statement saying the proposal "would effectively kill international travel to and from UK and cause immeasurable damage to the aviation industry and wider UK economy".
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It added: "Nobody is going to go on holiday if they're not able to resume normal life for 14 days, and business travel would be severely restricted.
"It will also make it all but impossible for aviation to resume any time soon, thereby setting back the UK's economic recovery still further."
Shadow foreign secretary Lisa Nandy told BBC Breakfast: "It's something that we've been asking ministers to clarify for weeks now.
"I raised it with the minister for the fifth time on Thursday because it's caused real confusion.
"At the moment we've got a lot of Britons who are still stranded abroad.
"People have been brought back in relatively large numbers and many of them are telling us that they have no information or advice given out about what they should be doing when they get home.
"They travel back from the airport on public transport, they go back to their families and they're worried that they're putting their families and other members of the public at risk, and some of them are coming from parts of the country where we are seeing an increase in infection rates, and so they're really worried about it, the wider public are really worried about it, and for weeks we've had mixed messages being briefed out of government."
She added: "I think there's a real reluctance to do anything without official advice at the moment, so I don't think the big problem is getting people to follow it.
"The big problem is actually getting that advice to people in the first place and it's been far too slow and far too confusing for most people.
"There's also a very real outstanding issue about the way in which people are being brought back into the country.
"A lot of the cases that I'm dealing with - my office is in touch with around 3,000 British nationals who are still stranded abroad - is about how they get to the airport on the other side of the border.
"People travelling across Spain, for example, on coaches, they get to the airport, it's very crowded, they're being crammed onto planes without social distancing measures in place.
"Some of them are telling me there's no hand gel available.
"Then, of course, there's no testing facilities when they arrived back into the UK, so it's welcome that the Government has started to respond to this, but we've got to get much, much quicker at this or we're going to see a resurgence in cases."
The ISU union - which represents borders, immigration and customs staff - called for clarity on the quarantine plans.
ISU professional officer Lucy Moreton told BBC Radio 4's Today programme: "At the moment this is just a leak, so we haven't had any particular information.
"There's a little bit of a discrepancy about whether this is airline passengers only or whether this is going to include individuals arriving by boat.
"And what are we going to do with the irregular migrants who don't have a private house to self-isolate in?"
Seemingly frustrated about no concrete information, she added: "I'm hoping someone will get round to telling the staff at some point."
She also questioned how it will be implemented, saying: "There's no way for that e-gate to collect an address so we'd have to do something, either shut those down completely or post staff either before or after to collect addresses."
Airport Operators Association (AOA) chief executive Karen Dee said she has not received any details yet about a mandatory 14-day quarantine for all travellers into the UK.
She told BBC Breakfast: "I think there's been lots of speculation in the press recently, and of course the transport secretary was on the Andrew Marr show last week, so although we haven't had any details yet there's been a lot of speculation that there will be a 14-day quarantine for passengers returning to the UK.
"That would have a really big impact on our sector, but at the moment we don't have very much detail about what that would mean."
Ms Dee added: "We see passenger numbers typically down by about 98% now in the UK. So, you know, a lot of airports now are closed for passenger traffic.
"There are very few flights coming in and that means no revenue, so we're really having to adjust and see our way through."
The AOA chief executive said it was not known exactly what measures will be brought in for air travel.
She told BBC Breakfast: "We're not medical experts and that's why we're keen to work with government and internationally to say what are the best things that we can do?
"Is it better cleaning and sanitation or hand sanitisers in the airport? Is it face masks and gloves for passengers to avoid touching?
"Is it some form of temperature checks at the airports or before they travel? Or other kind of testing that might evolve in the next few days or weeks?
"So at the moment, it could be a range of those options."
She added: "I think that there will be a range of things that passengers will see once we begin to scale back up, but at the moment I think it's really important that governments work with each other to say 'let's get one single international standard' so that passengers know what they're going to expect, wherever they are that they're travelling'."
It was put to Ms Dee that it would seem she has not had clear notification or clear guidance from the Government yet about what needs to be put in place.
Asked what her impression is of not having had clarity, she told BBC Breakfast: "I think the problem with that lack of clarity means that we're unable to plan.
"So, you know, it's perhaps not surprising that we don't have that standard agreed, and we know that the Government is working now very closely, both with the industry and internationally, to look at what the science tells us we should do.
"So it is a problem as we begin to start and we will see some flights begin to take off, mostly repatriation at the moment of course, but I think it causes some confusion and what we're really keen to ensure is that those passengers that do begin to come back to us feel reassured, and also our staff."
Tim Jeans, chairman of Cornwall Airport Newquay, warned of uncertainty for staff and businesses from reports of a 14-day quarantine for travellers entering the UK.
He was generally critical of the Government's handling of borders, telling BBC Radio 4's Today programme: "It was possibly inevitable but to say that it's come too late would be something of an understatement."
He added that "questioning the management and the planning of this is going to be very much at the forefront today".
"Now it does look that even though we're potentially past the peak we're going to close our borders and all the plans that airlines and airports had to start restarting operations are now on the scrapheap and will have to go back to square one," he continued.
"At the moment we've no official confirmation of this new measure but it looks to be that it will delay the reopening of the airport.
"That's the end as far as this summer is concerned and these are just going to add to the difficulties that business and tourism generally faces in the county, and I'm sure elsewhere in the country."
Tomorrow the PM is due to declare the result of the UK Government's review into what rule changes should be brought in for England.
The PM has promised to exercise "maximum caution" when tinkering with the restrictions but paved the way this week for the devolved nations to move at "different speeds" when releasing the lockdown as long as "there is evidence that supports" the decision.
