From Shady Grove Station: Take Montgomery County Ride On Bus Route 100 to Germantown Transit Center on Aircraft Drive between Route 118 (Germantown Road) and Century Boulevard. Walk to EES HQ or take Bus Route 83 to Century Boulevard and Clover Leaf Center Drive, 0.04 mi from EES HQ.
From Dulles International Airport: Take Dulles Airport Access Road for 14.2 miles to where it merges onto VA-267E and follow VA-267E toward I-495. Merge onto I-495N/Capital Beltway via Exit 18 toward Baltimore. After crossing American Bridge, keep to the left and take the I-270 spur north to I-270N. Follow I-270N to Exit 15B/Germantown. Merge onto MD-118S. Turn right onto Aircraft Drive and right onto Century Boulevard. You can also take the Washington Flyer Coach Service non-stop bus service from Dulles to Metro's West Falls Church Station.
From Baltimore/Washington International (BWI) Thurgood Marshall Airport: Follow I-195W for 4.4 miles. Merge onto I-95S at Exit 4B toward Washington. Take I-95S for 19.5 miles. Merge onto I-495W at Exit 27 toward Silver Spring. Follow I-495W for 14.7 miles. Take 270N toward Frederick. Follow I-270N to Exit 15B/Germantown. Merge onto MD-118S. Turn right onto Aircraft Drive and right onto Century Boulevard. You can also take the BWI Express Metro bus service between BWI Airport and the Greenbelt Metro Station.
From Ronald Reagan National Airport: Take the ramp toward I-395/Washington. Merge onto George Washington Memorial Parkway and go north to I-495N/Capital Beltway. After crossing American Bridge, keep to the left and take the I-270 spur north to I-270N. Follow I-270N to Exit 15B/Germantown. Merge onto MD-118S. Turn right onto Aircraft Drive and right onto Century Boulevard. You can also take the Blue or Yellow Lines from Reagan National Airport to Metro's Red Line.