Inspect aircraft, maintenance procedures, air navigational aids, air traffic controls, and communications equipment to ensure conformance with Federal safety regulations.

Inspect and monitor transportation equipment, vehicles, or systems to ensure compliance with regulations and safety standards.

Provide services to ensure the safety of passengers aboard ships, buses, trains, or within the station or terminal. Perform duties such as explaining the use of safety equipment, serving meals or beverages, or answering questions related to travel.

Control or tend conveyors or conveyor systems that move materials or products to and from stockpiles, processing stations, departments, or vehicles. May control speed and routing of materials or products.

Operate mechanical boom and cable or tower and cable equipment to lift and move materials, machines, or products in many directions.

Operate dredge to remove sand, gravel, or other materials in order to excavate and maintain navigable channels in waterways.

Operate or tend hoists or winches to lift and pull loads using power-operated cable equipment.

Operate industrial trucks or tractors equipped to move materials around a warehouse, storage yard, factory, construction site, or similar location.

Wash or otherwise clean vehicles, machinery, and other equipment. Use such materials as water, cleaning agents, brushes, cloths, and hoses.

Manually move freight, stock, luggage, or other materials, or perform other general labor. Includes all manual laborers not elsewhere classified.