Directions:

From the L train:
Take the L to the Morgan Ave stop in Brooklyn. Leave through the Morgan Ave exit at the front of the train coming from Manhattan, and use the right hand stairs as you exit the station.
Walk on Morgan Ave south towards the firehouse, crossing Grattan St.
Make a left onto Thames Street. 57 is the last steel door on the left. Push the call panel marked "OfficeOps."

Driving from 278 West via LIE or Midtown Tunnel:
Take the Morgan Ave Exit (1st Exit in Brooklyn)
Left on Morgan Ave south. for 1.3 mi
Follow Morgan Ave Directions Below:

From 278 East:
Take the Metropolitan Ave Exit
Right onto Metropolitan.
Straight about 1.2 miles passing through the shopping district
Right at Light on Morgan Ave.
Follow Directions from Morgan Ave Below:
From the Williamsburg Bridge:
Take the right ramp on the Williamsburg Bridge to the second exit, Broadway/ S. 5th Street, shortly after crossing the bridge.
Left at light at Havemyer St.
Right at the next light under the BQE overpass
Continue straight on Grand Street about 1 mile, passing through the shopping district
Right at light at Morgan Ave.

From Morgan Ave:
Cross Flushing Ave
Left at George St.
Left at Knickerbocker
Cross Flushing again
Next left on Thames St.
57 is first the building on the right