The Zoo is open! Entry passes are required for all guests, including infants. Effective July 30, all visitors ages 2 and older are required to wear a mask in all indoor spaces at the Zoo, regardless of their vaccination status. Fully vaccinated visitors do not need to wear a mask in outdoor areas.
Mailing address:
Science Building
National Zoological Park
Smithsonian Institution
PO BOX 37012 MRC 5503
Washington, DC 20013-7012
For the Genetics Laboratory use MRC 5513
For courier delivery:
Science Building
National Zoological Park
3001 Connecticut Ave., NW
Washington, DC 20008 USA
