Take Grand Central Parkway East which becomes Northern State Parkway to Exit 36B North (N.Y. 135 North-Seaford-Oyster Bay Expressway). Take 135 North two exits to Exit 14E (Route 25-Woodbury). Take service road short distance and bear right at fork in exit ramp in front of Equinox building. Travel a short distance to end of Crosssways Park Drive North and make a left turn. Travel a short distance to the end of the road and make a right turn onto Crossways Park Drive. Follow Crossways Park Drive to Research Frontiers' headquarters at 240 Crossways Park Drive. Parking lot is on the right side of the building.