苗圃和温室工人种植，培养和砍伐树木，灌木，花卉，苗圃，并为温室客户服务。他们受雇于室内和室外的苗圃和温室。
Nursery and greenhouse workers plant, cultivate and harvest trees, shrubs, flowers and plants, and serve nursery and greenhouse customers. They are employed in indoor and outdoor nurseries and greenhouses.
一般农场工人种植，培育和收获农作物，饲养牲畜和家禽，维护和修理农用设备和建筑物。本组包括农机操作者。一般农场工人受雇于作物，畜牧，水果，蔬菜和特种养殖场。
General farm workers plant, cultivate and harvest crops, raise livestock and poultry and maintain and repair farm equipment and buildings. This group includes operators of farm machinery. General farm workers are employed on crop, livestock, fruit, vegetable and specialty farms.
造林和林业工人执行各种有关造林和林地的管理，改善和保护的职责。他们受雇于伐木公司，承包商和政府服务。
Silviculture and forestry workers perform a variety of duties related to reforestation and to the management, improvement and conservation of forest lands. They are employed by logging companies, contractors and government services.
链锯，集材机操作员操作链锯砍伐，分解和降压树木，操作集材机移动或集中将砍伐的树木从伐木场运送到起货地点进行处理和运输。他们受雇于伐木公司和承包商。
Chain saw and skidder operators operate chain saws to fell, delimb and buck trees, and operate skidders to move or yard the felled trees from the logging site to the landing area for processing and transportation. They are employed by logging companies and contractors.
石油和天然气钻井工人作为钻机机组中间成员，操作钻探和服务钻机机械。石油和天然气以及服务运营商驱动卡车和操作专业化的液压泵系统，将水泥放置到油井或用化学药品，沙子混合物或气体处理油井，从而刺激生产。本单元组的工人受雇于钻井和油井的服务承办商和石油生产公司。
Oil and gas well drilling workers operate drilling and service rig machinery as intermediate members of the rig crew. Oil and gas well services operators drive trucks and operate specialized hydraulic pumping systems to place cement in wells or to treat wells with chemicals, sand mixtures or gases to stimulate production. Workers in this unit group are employed by drilling and well service contractors and by petroleum producing companies.
地下矿山服务和支持人员进行一系列的如下相关操作，输送系统，溜槽和矿石开采及地下结构，通道和道路的建设和支撑，以及材料和物资的供应，以支持地下开采。他们受雇于煤炭，金属和非金属矿山。
Underground mine service and support workers perform a range of duties related to the operation of orepasses, chutes and conveyor systems, the construction and support of underground structures, passages and roadways, and the supply of materials and supplies to support underground mining. They are employed by coal, metal and non-metallic mineral mines.
该组的工人安装更换汽车机械零件，如消声器，排气管，减震器，弹簧和散热器，并进行日常维护，如更换机油，润滑和轮胎，以及汽车，卡车和重型设备的维修服务。他们受雇于汽车和卡车服务和维修店，工业场所的服务部门和建筑，采矿和伐木公司。
Workers in this group install replacement automotive mechanical parts such as mufflers, exhaust pipes, shock absorbers, springs and radiators and perform routine maintenance service such as oil changes, lubrication and tire repairs on automobiles, trucks and heavy equipment. They are employed by automobile and truck service and repair shops, service departments of industrial establishments and construction, mining and logging companies.
航空运输坡道服务员操作坡道服务车辆和设备，在机场处理货物，行李并执行其他地面支持工作。他们受雇于航空公司和航空服务公司和联邦政府。
Air transport ramp attendants operate ramp-servicing vehicles and equipment, handle cargo and baggage and perform other ground support duties at airports. They are employed by airline and air services companies and the federal government.
此单元组包括工人管理沿运河系统的闸门，桥梁和类似设备的工人，以及管理线览渡轮和渡轮码头的工人。本组还包括船舶运营商，和业主运营商，其使用小汽艇或船只运输旅客或货物。该组中的工人受雇于联邦政府，电缆渡轮公司，轮渡码头，船舶公司和运河，港口或港口当局。小船业主运营商属于自雇人士。
This unit group includes workers who operate lock gates, bridges and similar equipment along canal systems and workers who operate cable ferries and ferry terminals. This group also includes boat operators, and owner-operators, who operate small motorboats or watercraft to transport passengers or freight. Workers in this group are employed by the federal government, cable ferry companies, ferry terminals, marine companies and canal, port or harbour authorities. Owner-operators of small boats are self-employed.
本单元组工人站岗瞭望，操作和维护甲板设备，执行其他的甲板和桥梁职责，协助船舶轮机员操作，维护和修理船舶或者自航船的发动机，机械及辅助设备。他们受雇于海洋运输公司和联邦政府部门。
Workers in this unit group stand watch, operate and maintain deck equipment, perform other deck and bridge duties, assist ship engineer officers to operate, maintain and repair engines, machinery and auxiliary equipment aboard ships or self-propelled vessels. They are employed by marine transportation companies and federal government departments.