Plans to lift quarantine restrictions for travellers have become the focus of a blame game between the governments of Boris Johnson and Nicola Sturgeon.

Transport Secretary Grant Shapps suggested in the Commons that the Scottish Government was delaying an announcement on air bridges between the UK and countries which will be exempt from the 14-day isolation period.

But the Holyrood administration said the claim was “completely unfounded” and accused the UK Government of failing to keep Scottish ministers fully updated on the plans.

First Minister Ms Sturgeon said Mr Shapps had misrepresented the situation “which is disappointing but sadly not surprising”.

We have sought, as far as possible, a four-nations approach to this issue, but such a policy requires meaningful consultation by the UK Government – something which has so far been lacking

People arriving in the UK – including returning Britons – are currently required to self-isolate for a fortnight to reduce the spread of coronavirus.

The UK Government is expected to announce a list of countries which will be exempt from the restrictions this week, but so far details have not been published.

With the proposals expected to be set out on Friday, Mr Shapps clashed with a senior member of Ms Sturgeon’s Scottish National Party in the Commons.

Mr Shapps told SNP transport spokesman Gavin Newlands: “I’d appreciate his help in ensuring that air bridges can get going as quickly as possible.

“I’m very keen to get the devolved administrations, including the Scottish Government, on board so we can get this thing announced.”

He urged another SNP MP, Philippa Whitford, to “ask the Scottish Government to join with us in ensuring we can have these air bridges in place nationwide as quickly as possible”.

Scotland’s Justice Secretary Humza Yousaf hit back at Mr Shapps’ comments and claimed the UK Government had repeatedly redrawn the list of countries under consideration without consulting the devolved administrations.

“This suggestion is completely unfounded,” he said.

“We have sought, as far as possible, a four-nations approach to this issue, but such a policy requires meaningful consultation by the UK Government – something which has so far been lacking.”

In talks with Health Secretary Matt Hancock on Wednesday night, the devolved administrations were presented with the latest proposed list of air bridge countries which had been “significantly changed” from previous versions, he said.

Wales’ minister for international relations, Eluned Morgan, said Welsh Government ministers would “continue to review” the list of countries presented to them, but that an “all UK approach” was preferred to the lifting of restrictions “in an ideal world”.

The Prime Minister’s official spokesman said the Government had been “working closely with the devolved administrations to take a four-nations approach to quarantining so far and our intention is to publish more details of the plan this week”.

As many as 75 countries could be exempted from the quarantine restrictions when the list is finally published, reports have suggested.

The list will lift the Foreign Office ban on non-essential travel to nearly all EU destinations, the British territories including Bermuda and Gibraltar, as well as Turkey, Thailand, Australia and New Zealand, the Daily Telegraph reported.

Downing Street played down the reports ahead of the official announcement.

But Mr Yousaf said 73 countries had been included on lists presented by the UK Government on Wednesday night.

He said the original list had 15 countries with a “green” risk rating and 27 with an “amber” rating – but then 30 minutes before the 6pm meeting they were shown a list of 40 green and 33 amber-risk nations.

Mr Yousaf said he could not agree the list until Scotland’s chief medical officer had examined it.

“There was also an agreement between all four nations that we should revisit the date of any announcement to take into account routemap milestones of each nation,” he said.

The prospect of change was welcomed by transport industry figures who have campaigned for the quarantine restrictions to be lifted.

Paul Charles, chief executive of travel consultancy The PC Agency and member of the Quash Quarantine campaign group, said: “It’s to be welcomed that the Government is effectively abandoning travel corridors and blanket quarantine measures, and enabling travel again to such a wide group of countries from Monday July 6.

“When confirmed, we will get certainty again in our sector, which is badly needed.

“Each day that goes by without confirmation means fewer bookings and more job losses.

“It’s time the Government levelled with the British people on its travel policy, instead of going round and round in circles before making any decision.”

Meanwhile, Mr Shapps hinted that an enhanced testing regime at airports could help unlock travel.

Swissport, the ground handling company, and Collinson, a medical assistance provider, have been working on an airport-based testing system.

Mr Shapps said he is in touch with Swissport and “following those trials and proposals very carefully”.

He added: “We do believe it’s important to be able to provide international standards, and that may well include specific types of testing.”