High school diploma or equivalent

None

Heavy vehicle and mobile equipment service technicians, also called mechanics, inspect, maintain, and repair vehicles and machinery used in construction, farming, rail transportation, and other industries.

High school diploma or equivalent

Less than 5 years

Earth Drillers operate a variety of drills such as rotary, churn, and pneumatic to tap subsurface water and salt deposits, to remove core samples during mineral exploration or soil testing, and to facilitate the use of explosives in mining or construction.

High school diploma or equivalent

None

Electricians install, maintain, and repair electrical power, communications, lighting, and control systems in homes, businesses, and factories.

High school diploma or equivalent

Less than 5 years

Aircraft Cargo Handling Supervisors coordinate and supervise the activities of ground crew in the loading, unloading, securing, and staging of aircraft cargo or baggage. They can determine the quantity and orientation of cargo and compute aircraft center of gravity, and also may accompany aircraft as member of flight crew and monitor and handle cargo in flight, and assist and brief passengers on safety and emergency procedures. This category includes loadmasters.

High school diploma or equivalent

None

Industrial machinery mechanics and machinery maintenance workers maintain and repair factory equipment and other industrial machinery, such as conveying systems, production machinery, and packaging equipment. Millwrights install, dismantle, repair, reassemble, and move machinery in factories, power plants, and construction sites.

High school diploma or equivalent

None

Transportation Inspectors review equipment or goods in connection with the safe transport of cargo or people. This category includes rail transportation inspectors, such as freight inspectors, rail inspectors, and all other inspectors of transportation vehicles not elsewhere classified.

High school diploma or equivalent

None

Operating Engineers and Other Construction Equipment Operators use construction equipment like bulldozers and front-end loaders to dig, move, and grade earth; erect structures; or pour concrete. Among other duties, they may repair and maintain equipment.

High school diploma or equivalent

None

Industrial machinery mechanics and machinery maintenance workers maintain and repair factory equipment and other industrial machinery, such as conveying systems, production machinery, and packaging equipment. Millwrights install, dismantle, repair, reassemble, and move machinery in factories, power plants, and construction sites.

High school diploma or equivalent

None

Heavy vehicle and mobile equipment service technicians, also called mechanics, inspect, maintain, and repair vehicles and machinery used in construction, farming, rail transportation, and other industries.

High school diploma or equivalent

None

Diesel service technicians and mechanics (also known as diesel technicians) inspect, repair, or overhaul buses and trucks, or maintain and repair any type of diesel engine.

No formal educational credential

None

Continuous Mining Machine Operators use self-propelled mining machines that rip coal, metal and nonmetal ores, rock, stone, or sand from the mine face and load it onto conveyors, shuttle cars, or trucks, in a continuous operation.

High school diploma or equivalent

None

Riggers set up or repair rigging for construction projects, manufacturing plants, logging yards, ships and shipyards, or for the entertainment industry.

High school diploma or equivalent

None

Plumbers, Pipefitters, and Steamfitters install and repair piping fixtures and systems.

High school diploma or equivalent

5 years or more

First-line Supervisors of Construction Trades and Extraction Workers directly supervise and coordinate activities of construction or extraction workers.

High school diploma or equivalent

None

Extraction Workers Helpers support extraction craft workers, such as earth drillers, blasters and explosives workers, derrick operators, and mining machine operators, by performing duties requiring less skill. Their duties include supplying equipment and cleaning their work area.

High school diploma or equivalent

Less than 5 years

Crane and Tower Operators operate mechanical boom and cable or tower and cable equipment to lift and move materials, machines, or products in many directions.

High school diploma or equivalent

Less than 5 years

First-line Supervisors of Landscaping, Lawn Service, and Groundskeeping workers directly supervise and coordinate activities of workers engaged in landscaping or groundskeeping activities. Work may involve reviewing contracts to ascertain service, machine, and workforce requirements, answering inquiries from potential customers regarding methods, material, and price ranges, and preparing estimates according to labor, material, and machine costs.

High school diploma or equivalent

None

Line installers and repairers, also known as line workers, install or repair electrical power systems and telecommunications cables, including fiber optics.

High school diploma or equivalent

None

Carpenters construct, repair, and install building frameworks and structures made from wood and other materials.

High school diploma or equivalent

None

Rail-track Laying and Maintenance Equipment Operators install, repair, and maintain track for standard or narrow-gauge railroad equipment used in regular railroad service or in plant yards, quarries, sand and gravel pits, and mines.

High school diploma or equivalent

None

Railroad Conductors and Yardmasters coordinate activities of switch-engine crews within a railroad yard, industrial plant, or similar location. Conductors coordinate activities of the train crew on passenger or freight trains, and yardmasters coordinate activities of workers involved in railroad traffic operations.

High school diploma or equivalent

Less than 5 years

Surface Mining Excavating Machine, Loading Machine, and Dragline Operators handle or tend machinery at surface mining sites. They use vehicles and tools equipped with scoops, shovels, or buckets to excavate and load loose materials.

High school diploma or equivalent

5 years or more

Construction and Building Inspectors ensure that construction meets local and national building codes and ordinances, zoning regulations, and contract specifications.

High school diploma or equivalent

None

Power Plant Operators, Distributors, and Dispatchers control the systems that generate and distribute electric power.

No formal educational credential

None

Underground Mining Loading and Moving Machine Operators use underground loading or moving machines to load or move coal, ore, or rock using shuttle or mine car or conveyors. Their equipment may include power shovels, hoisting engines equipped with cable-drawn scraper or scoop, or machines equipped with gathering arms and conveyor.