Diagnose, adjust, repair, or overhaul motorcycles, scooters, mopeds, dirt bikes, or similar motorized vehicles.

Repair and adjust electrical and mechanical equipment of boat engines.

Diagnose, adjust, repair, or overhaul railroad rolling stock, mine cars, or mass transit rail cars.

Diagnose, adjust, repair, or overhaul mobile mechanical, hydraulic, and pneumatic equipment, such as cranes, bulldozers, graders, and conveyors, used in construction, logging, and surface mining.

Diagnose, adjust, repair, or overhaul farm machinery and vehicles, such as tractors, harvesters, dairy equipment, and irrigation systems.

Diagnose, adjust, repair, or overhaul buses and trucks, or maintain and repair any type of diesel engines. Includes mechanics working primarily with automobile or marine diesel engines.

Repair only one system or component on a vehicle, such as brakes, suspension, or radiator.

Repair automobiles, trucks, buses, and other vehicles. They master mechanics repair virtually any part on the vehicle or specialize in the transmission system.

Replace or repair broken windshields and window glass in motor vehicles.

Repair and refinish automotive vehicle bodies and straighten vehicle frames.