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When do I still need to wear a mask?

It depends, mostly on whether or not you’re vaccinated.

If you’re fully vaccinated, the latest guidance from the U.S. Centers for Disease Control and Prevention says you no longer need to wear a mask or physically distance in most situations. That includes when you’re outside and in many indoor spaces like restaurants, though you still need to follow any local or business rules.

Americans also still need a mask when traveling, including on buses, subways and planes and at airports. The guidance on masks will differ by country.

Some experts say the CDC is relaxing its recommendations too soon.

Part of the concern is that there’s no way to tell who’s vaccinated, so unvaccinated people could claim they got the shots and go maskless, said David Holtgrave, dean of the School of Public Health at University at Albany. That could cause cases to rise.