United States Pharmacopeia
12601 Twinbrook Parkway
Rockville, Maryland 20852-1790, USA
Tel: 1-800-227-8772; +1-301-881-0666 Get directions
Parking: After arriving at USP headquarters on Twinbrook Parkway, turn onto Fishers Lane and take the ramp to the underground garage. Pull up to the call box and press the button for assistance. State your name and reason for visit. When the garage door opens, turn on headlights, and drive slowly into the garage. Park in any spot marked "Visitor". Take the elevator to the lobby on the first floor, where the receptionist will assist you.
