South:
Take Route 495 North to Exit 24B, Route 20 West. Take a right off the exit and follow Route 20 West .7 miles to Marlboro Executive Park, 65 West Boston Post Road. Take a right into the driveway and follow to the back of the building. Enter through the large, glass atrium. CELT's offices are located directly to your right once you have entered the building.

North:
Take Route 495 South to Exit 24B, Route 20 West. Take a right off the exit and follow Route 20 West .7 miles to Marlboro Executive Park, 65 West Boston Post Road. Take a right into the driveway and follow to the back of the building. Enter through the large, glass atrium. CELT's offices are located directly to your right once you have entered the building.

West:
Take the Mass Pike East to Exit 10A, Route 495 North. Follow Route 495 North to Exit 24B, Route 20 West. Take a right off the exit and follow Route 20 West .7 miles to Marlboro Executive Park, 65 West Boston Post Road. Take a right into the driveway and follow to the back of the building. Enter through the large, glass atrium. CELT's offices are located directly to your right once you have entered the building.

East:
Take the Mass Pike West to Exit 10A, Route 495 North. Follow Route 495 North to Exit 24B, Route 20 West. Take a right off the exit and follow Route 20 West .7 miles to Marlboro Executive Park, 65 West Boston Post Road. Take a right into the driveway and follow to the back of the building. Enter through the large, glass atrium. CELT's offices are located directly to your right once you have entered the building.

*If you miss the entrance, proceed to the next traffic light and turn right.  Take the next immediate right onto Northboro Street.  The entrance to the back parking lot for 65 West Boston Post Road is just past the Embassy Suites – on the right.