Existing comment:
COVID-19 Safety
Although National Mall and Memorial Parks is [sic] not closed, we encourage all visitors, particularly the most vulnerable, including the elderly and people with underlying conditions, to make smart decisions and to follow CDC guidance to help reduce the spread of COVID-19. These measures include:
* Practice social distancing;
* Wash your hands often with soap and water for at least 20 seconds;
* Cover your mouth and nose when you cough or sneeze;
* Avoid touching your eyes, nose, and mouth;
* Most importantly, please stay home if you feel sick.

[Note that it doesn't mention wearing a mask. That had long ago become a recommendation by everyone except the child president but the park service hadn't updated their signs at least here.]
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