New York City is to require customers and staff of restaurants, gyms and other indoor businesses to have had Covid-19 vaccinations.
Mayor Bill de Blasio said the policy would "turn the tide" on Covid.
Nearly 60% of New Yorkers have received at least one jab, BBC reported.
But some areas, which are largely poor communities, and communities of colour, have lower vaccination rates.
Anyone who wants to eat inside a restaurant or attend an indoor performance in New York City will now need to show proof they have been vaccinated against Covid-19.
The policy, which is similar to measures taken in France to try to help slow down the spread of coronavirus, will be enforced from September 13.