New COVID Guidelines: Here's When American Can Go Maskless Outside 04/27/21 AT 4:20 PM The Centers for Disease Control and Prevention announced on Tuesday that those who have received at least one dose of the vaccine, or the single dose of Johnson & Johnson, don’t have to wear masks while outside anymore, unless in a large crowd of those not in your household. “Today, I hope, is a day when we can take another step back to the normalcy of before,” CDC Director Dr. Rochelle Walensky said. “Over the past year, we have spent a lot of time telling Americans what you can’t do. Today, I am going to tell you some of the things you can do, if you are fully vaccinated.”