From Route 95/128: Take exit 26 (Route 20 - Waltham). Follow signs for Route 117 West. Turn left onto Route 117 and cross over the highway. At flashing yellow light, turn left onto Jones Road - Waltham/Weston Office Park. Turn right into driveway before or after the building for parking in the lot or garage (free parking). Enter main lobby and take East elevators to the 5th floor reception area.