Vaccine passports are developed in some states and provinces to limit travel by people who declined or have not received a COVID-19 vaccine. They are intended to enable the general public to easily determine whether each individual has been vaccinated and limit access to businesses by unvaccinated individuals.
American states such as New York have required vaccine passports.
The Republican states of Florida, Georgia, Alabama and Arizona have all banned vaccine passports.
There is a push for a digital certification of vaccination status. The World Health Organization is promoting a digital standard for proving one's vaccination status.