Speaking to reporters on Tuesday, the president used the bully pulpit of the White House to assure the public science shows the risk of coronavirus infection is very low for vaccinated people in outdoor spaces.
"Starting today, if you're fully vaccinated and you're outdoors and not in a big crowd, you no longer need to wear a mask," said Biden, beside a tree and lawn, in the warm spring sunshine.
"I want to be absolutely clear. If you're in a crowd, like a stadium or at a conference or a concert, you still need to wear a mask, even if you're outside. But beginning today, gathering with a group of friends in a park, going for a picnic as long as you are vaccinated and outdoors, you can do it without a mask."