But the UK's vaccine minister says certificates will be provided if people need them for international travel.
The UK government is not planning the domestic use of vaccine passports, Minister for COVID Vaccine Deployment Nadhim Zahawi has said.
"We don't yet have the evidence of the effect of the vaccines on transmission, it's much better... that you look at rapid testing," he said.
The issuing of certificates will be facilitated if people need them for international travel, he added.