Construct, assemble, maintain, and repair stationary steam boilers and boiler house auxiliaries. They align structures or plate sections to assemble boiler frame tanks or vats, following blueprints. Work involves use of hand and power tools, plumb bobs, levels, wedges, dogs, or turnbuckles.

Drive logging tractor or wheeled vehicle equipped with one or more accessories such as bulldozer blade, frontal shear, grapple, logging arch, cable winches, hoisting rack, or crane boom, to fell tree; to skid, load, unload, or stack logs; or to pull stumps or clear brush.

Use axes or chainsaws to fell trees using knowledge of tree characteristics and cutting techniques to control direction of fall and minimize tree damage.

Use nets, fishing rods, traps, or other equipment to catch and gather fish or other aquatic animals from rivers, lakes, or oceans, for human consumption or other uses. They haul the fish onto ship.

Watch over live farm, ranch, or aquacultural animals that may include cattle, sheep, swine, goats, horses and other equines, poultry, finfish, shellfish, and bees. They watch over animals raised for animal products. Their duties include feeding, watering, herding, grazing, castrating, branding, de beaking, weighing, catching, and loading animals.

Use hand tools to plant, cultivate, and harvest vegetables, fruits, nuts and field crops. Their duties may include tilling soil and applying fertilizers; transplanting, weeding, thinning, or pruning crops; applying pesticides; cleaning, packing, and loading harvested products. They construct trellises, repair fences and farm buildings, or participate in irrigation activities.

Drive and control farm equipment to till soil and to plant, cultivate, and harvest crops. They perform tasks, such as crop baling or hay bucking. They operate stationary equipment to perform post harvest tasks, such as husking, shelling, threshing, and ginning.

Directly supervise and coordinate activities of logging workers.

Set up and operate motion picture projection and related sound reproduction equipment.

Use sophisticated climbing and rigging techniques in order to cut away dead or excess branches from trees or shrubs to maintain right of way for roads, sidewalks, or utilities, or to improve appearance, health, and value of trees. They prune or treat trees or shrubs using handsaws, hand pruners, clippers, and power pruners. They may use truck mounted lifts.