Mechanics will be classified in accordance with training and capability grades as follows: Class A Knowledge and competency in all vehicle systems, including electrical, engine, transmission, including teardown and rebuild, brakes, suspension, cooling systems, electronics, diagnostics, and HVAC systems. Class B Knowledge and competency in brakes, suspensions, and HVAC with broad scope R&R (remove and repair) of major components, including routine maintenance, electronic diagnostic, and repair capabilities.