The Scottish government's vaccine passport scheme has become enforceable by law from Monday morning.
Nightclubs and large events, like some football matches, will only be able to allow entry to people who can show they have had two doses of a CV19 vaccine.
The scheme came into effect on October 1 after MSPs voted to back the proposals.
Businesses were given a 17-day "period of grace" to allow venues time to test out their procedures.
People who have had two vaccines in Scotland can download or get a paper copy of a certificate with a QR code.
Everyone over the age of 18 must now show - if asked - that they have had both doses of the vaccine before they are allowed entry to certain venues and events. These include:
- Nightclubs and "analogous venues"
- Adult entertainment venues
- Unseated indoor events with more than 500 people, even if some are seated
- Unseated outdoor events with more than 4,000 people
- Any event with more than 10,000 people in attendance
The scheme requires venues to put in place a "reasonable system" to check the status of customers, with certain exemptions on medical grounds.
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