Celtic are the first club in Scotland to announce they will be enforcing new proof of vaccination rules when they host Ferencvaros in the Europa League on Tuesday afternoon.
Ange Postecoglou's side are searching for their first points in Group G and face the Hungarians in a bizarre 3.30pm kick-off, owing to the COP26 Climate Conference taking place in the city.
But the curious start time is not the only facet of the fixture that will be new to Celtic fans.
The so-called 'grace period' is now set to end and clubs are no longer allowed trial runs of their procedures to check if fans are double jabbed.
According to new Scottish Government rules, anyone attending any event with a capacity of 10,000 or more must have had both doses of a Covid vaccine.
Celtic have told fans they will accept three different forms of certification.
Supporters can bring a printed out copy of their vaccine certificate, show a digital copy such as a PDF from their phone screen, or download the NHS Scotland Covid Check app — though many punters heading to games in recent weeks have complained the latter will not recognise their details.
It's important to make sure you're prepared for upcoming games whoever you support — and you can get a copy here.
