As it stands, travellers from Scotland can only get paper confirmation to show that they have been double-jabbed as a result of Scotland’s vaccine passport app still being in development.

Aggrieved oil and gas workers have reportedly contacted Mr. Kerr claiming that staying at quarantine hotels before starting work is incurring personal costs of £1,000.

Others have claimed, in emails sent to Mr. Kerr, that they required three separate PCR tests as well as having to quarantine in a hotel before being allowed to work in Norway.

The Scottish Government awarded a £600,000 contract in June to Danish IT firm Netcompany to develop a vaccine passport similar to ones already in use elsewhere in England, Wales and Northern Ireland. The company hopes to launch the Scottish version in September.

Currently, Norway only accepts QR code versions of the vaccine passport app, rendering paper confirmation effectively useless for entering the country.

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Speaking on the subject, Mr Kerr, Scottish Conservative MSP and shadow secretary for net zero, energy and transport, said: “Workers feel like they are effectively being banned from Norway – all because the SNP Government have disgracefully neglected both them and the rollout of digital vaccine passports.

“It’s absolutely scandalous that the online app is still not yet up and running. Scotland is now massively behind everyone in Europe including other parts of the UK which is having a detrimental impact on the lives of oil workers.

“The SNP Government have had months to sort out this critical situation and have been completely lackadaisical on such an important issue.

“Livelihoods are being put in jeopardy here and it’s vital the Scottish Government rectifies this situation as soon as possible.”

Commenting on the issue of digital vaccine passports, a Scottish Government spokesman said: “We are developing an app to make it easier to show Covid status for international travel.

“This will include vaccination records and a QR code and we aim to release this next month”.