Install, maintain, and repair electrical wiring, equipment, and fixtures. Ensure that work is in accordance with relevant codes. May install or service street lights, intercom systems, or electrical control systems.
Assemble, install, repair, or maintain electric or hydraulic freight or passenger elevators, escalators, or dumbwaiters.
Operate or tend machinery equipped with scoops, shovels, or buckets, to excavate and load loose materials.
Erect and repair fences and fence gates, using hand and power tools.
Directly supervise and coordinate activities of construction or extraction workers.
Directly supervise and coordinate the activities of mechanics, installers, and repairers.
Directly supervise and coordinate activities of transportation and material-moving machine and vehicle operators and helpers.
Apply blocks, strips, or sheets of shock-absorbing, sound-deadening, or decorative coverings to floors.
Scrape and sand wooden floors to smooth surfaces using floor scraper and floor sanding machine, and apply coats of finish.
Distribute or process gas for utility companies and others by controlling compressors to maintain specified pressures on main pipelines.
Shape molten glass according to patterns.
Install glass in windows, skylights, store fronts, and display cases, or on surfaces, such as building fronts, interior walls, ceilings, and tabletops.
Grind, sand, or polish, using hand tools or hand-held power tools, a variety of metal, wood, stone, clay, plastic, or glass objects. Includes chippers, buffers, and finishers.
Identify, remove, pack, transport, or dispose of hazardous materials, including asbestos, lead-based paint, waste oil, fuel, transmission fluid, radioactive materials, or contaminated soil. Specialized training and certification in hazardous materials handling or a confined entry permit are generally required. May operate earth-moving equipment or trucks.
Install, service, or repair heating and air conditioning systems in residences or commercial establishments.