In some areas, like New York, face masks are required at all times. In other areas, face masks are simply recommended. The rules vary depending upon who set them i.e. different Governors and Mayors.
If you live in California, Maryland, New Jersey, or New York, then you may be required to wear a face mask.
In some other areas, the answer is “No.”
That’s why to answer this question you’ll need to check with your local municipal authority.