Training Responders for Accidents and Improving Notification Act or the TRAIN Act - Directs the Secretary of Transportation to: (1) issue regulations implementing certain National Transportation Safety Board (NTSB) recommendations relating to railroad switches, positioning of tank cars, and emergency escape equipment for crewmembers; (2) make grants to fire departments for costs incurred in responding to incidents involving rail transportation of hazardous materials; (3) authorize awarding emergency responder training grants to nonprofit public sector employee organizations and to establish a standard for such training; (4) issue final rules requiring railroads to inform local communities of shipments of hazardous materials to assist in their emergency planning; and (5) report to Congress on implementation of railroad safety statutory mandates and on NTSB or Department of Transportation Inspector General safety recommendations.