From Downtown Washington
Take the 14th St. Bridge or I-395 South (SW Freeway). After crossing the 14th Street Bridge, go approx. 4 miles to Exit for King Street/Route 7 West. At the 7th light,   turn left onto S. George Mason Drive. At 2nd light turn right onto the Skyline parking lot ramp. Paid parking is available. The PSI office is in Skyline 4, Suite 900.

From Dulles Airport or Washington Beltway (I-495)
Take I-495 South to Route 50 East (Exit 51). Stay on Route 50 East for approximately 3 miles. At Seven Corners, bear right on Route 7 towards Bailey's Crossroads. Remain on Route 7 for approximately 3 miles. As you pass through Bailey's Crossroads, the Skyline Complex will come into view as the tallest group of buildings ahead on the right. Turn right onto George Mason Drive, then turn right at the second light. Paid parking is available. The PSI office is in Skyline 4, Suite 900.

From Baltimore Washington International Airport
Take I-95 to Baltimore-Washington Parkway South (I-295). At the I-295 / NY Avenue split continue on I-295 South to Howard Road exit (1 exit past Pennsylvania Ave). At the light turn right. Follow onto Frederick Douglas Memorial Bridge and continue straight until merge onto I-395 South (about 1 mile). Take I-395 South, crossing 14th Street Bridge, continuing on I-395 for 4 miles to the exit for King Street/Route 7 West. Travel 7 lights and turn left onto George Mason Drive. At the 2nd light and turn right and go up the parking lot ramp. Paid parking is available. The PSI office is in Skyline 4, Suite 900.