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Certified | The Trane Comfort Specialist™ icon indicates that we have undergone special training and adheres to high customer service standards. |  | North American Technician Excellence, Inc. (NATE) is the leading certification program for technicians in the heating, ventilation, air-conditioning, and refrigeration (HVAC/R) industry and is the only test supported by the entire industry. NATE certification is for individual technicians and not companies |
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