Ordered Call Back (Or Off-Called Back). An operator who has been directed to work on his/her day off. OCBs are called only after the regular work force and the volunteers have been used.
Operations Control Center
Operations Central Instruction in El Monte, adjacent to Division 9. This unit conducts basic vehicle operations training for bus operators, mechanics and maintenance assistants; and licensing/certification compliance services.
Owner-controlled insurance program
Overhead Cantenary System
Orange County Transit Authority