So an internationally recognised and agreed format is required, and people have to apply for it before going on holiday. When and where is this international convention to agree on the design and use of this passport scheduled to take place?
Otherwise, why not go back to what I said earlier, and have a visa type approval issued by the destination country.
You provide proof in UK to the local embassy, and the destination country issues you a 'Covid Visa' to accompany your passport.
Unnecessarily complicated. You and every U.K./Tory/Boris hater/Remainer would then be moaning about the aggro and cost involved in getting a visa. Many people don’t live round the corner from the embassy for every country they want to visit.
There’s loads of ways it could easily be sorted for those going abroad. All you seem to be interested in though is looking for the most complicated ways for it to be done or reasons why it can’t be done. Another typical French defeatist trait you seem to have acquired.
