- Rail Yard Engineers, Dinkey Operators, and Hostlers
- Engine Hostler
- Engineer
- Mine Motor Engineer
- Mine Motor Operator
- Diesel Dinkey Engineer
- Dinkey Engine Operator
- Dinkey Engineer
- Dinkey Locomotive Engineer
- Duty Engineer
- Haulage Engine Operator
- Locomotive Engineer
- Rail Yard Engineer
- Railroad Engineer
- Switch Engineer
- Yard Engineer
- Drive switching or other locomotive or dinkey engines within railroad yard, industrial plant, quarry, construction project, or similar location.
- Drive engines within railroad yards or other establishments to couple, uncouple, or switch railroad cars.
- Inspect engines before and after use to ensure proper operation.
- Observe and respond to wayside and cab signals, including color light signals, position signals, torpedoes, flags, and hot box detectors.
- Signal crew members for movement of engines or trains, using lanterns, hand signals, radios, or telephones.