DRT is located in Germantown, Maryland, approximately 20 miles northwest of Washington, DC, along the I-270 technology corridor. To reach DRT, take I-270 to Germantown. Take exit 15B to Rte. 118 South. Turn right at the second light onto Aircraft Drive. Turn right at the first intersection onto Century Blvd. After rounding the curve, turn left into the third parking lot (street address of 20250).  Park in front or alongside of first pinkish building.   All visitors must sign in and receive a badge.  DRT reception is located on the third floor.

From Dulles Airport: Follow the Dulles Access Road about 12 miles to I-495 North (Washington Beltway inner loop) toward Baltimore/Rockville. Proceed on I-495 about 5 miles to I-270 North. Proceed approximately 12 miles and follow directions above.

From BWI Airport: Take airport access road (I-195) to I-95 South. Follow I-95 South to I-495 West toward Silver Spring/Bethesda (Washington Beltway outer loop). Proceed to I-270 North. Proceed approximately 12 miles and follow directions above.

From Washington National Airport: Take George Washington Parkway North/West approximately 12 miles to I-495 North. Take I-495 North (Washington Beltway inner loop) toward Rockville, Maryland. Proceed on I-495 approximately 5 miles to I-270 North. Proceed approximately 12 miles on I-270 North and follow directions above.