Rockwell Collins’s next-generation TTR-2100 traffic alert and collision avoidance system (Tcas II) for transport aircraft has achieved FAA certification. The new system, which provides NextGen traffic surveillance in a lighter and more capable unit, is available for Boeing aircraft as a forward-fit and retrofit solution. Airbus and other aircraft types will follow soon. Both the TTR-2100 and the soon-to-be certified TTR-4100 for helicopters and business and regional aircraft meet the emerging requirements of NextGen airspace.