ATRA — Automatic Transmission Shop

Founded in 1954, the Automatic Transmission Rebuilders Association (ATRA) is an international trade association for the professional automatic transmission repair industry. ATRA is headquartered in Oxnard, California, and has over 2,000 members. The ATRA membership consists of more than 2000 repair specialists, students, schools, and suppliers, all supporting the training, research, and improvements for transmission repair.