| Name |
| Amusement and Recreation Attendants |
| Automotive Glass Installers and Repairers |
| Automotive Service Technicians and Mechanics |
| Biomass Plant Technicians |
| Brickmason and Stonemason Helpers |
| Brickmasons and Blockmasons |
| Bus and Truck Mechanics |
| Butchers and Meat Cutters |
| Carpenters |
| Cement Masons and Concrete Finishers |
| Computer-Controlled Machine Tool Operators |
| Construction Laborers |
| Construction and Maintenance Painters |
| Control and Valve Installers and Repairers |
| Crane and Tower Operators |
| Crushing, Grinding, and Polishing Machine Operators |
| Cutting, Punching, and Press Machine Operators |
| Electrical Power-Line Installers and Repairers |
| Electrical and Electronic Engineering Technicians |
| Electricians |
| Elevator Installers and Repairers |
| Firefighters |
| Floor Layers, Except Carpet, Wood, and Hard Tiles |
| Gas Plant Operators |
| Geothermal Technicians |
| Glaziers |
| Graphic Designers |
| Heat Treating Equipment Operators |
| Heating, Air Conditioning, and Refrigeration Mechanics and Installers |
| Heavy and Tractor-Trailer Truck Drivers |
| Home Appliance Repairers |
| Industrial Machinery Mechanics |
| Inspectors, Testers, Sorters, Samplers, and Weighers |
| Installation, Maintenance, and Repair Helpers |
| Janitors and Cleaners |
| Landscaping and Groundskeeping Workers |
| Machinists |
| Maintenance and Repair Workers |
| Massage Therapists |
| Mechanical Insulation Workers |
| Medical Records and Health Information Technicians |
| Millwrights |
| Mobile Heavy Equipment Mechanics |
| Molding, Coremaking, and Casting Machine Operators |
| Motorboat Mechanics |
| Multiple Machine Tool Operators |
| Nursing Assistants |
| Operating Engineers and Other Construction Equipment Operators |
| Pile-Driver Operators |
| Plasterers and Stucco Masons |
| Plumbers, Pipefitters, and Steamfitters |
| Power Plant Operators |
| Powerhouse, Substation, and Relay Electrical and Electronics Repairers |
| Riggers |
| Roofers |
| Security Managers |
| Sheet Metal Workers |
| Stationary Engineers and Boiler Operators |
| Structural Iron and Steel Workers |
| Supervisors of Mechanics, Installers, and Repairers |
| Supervisors of Production and Operating Workers |
| Telecommunications Equipment Installers and Repairers |
| Terrazzo Workers and Finishers |
| Tile and Marble Setters |
| Tool and Die Makers |
| Tree Trimmers and Pruners |
| Water and Wastewater Treatment Plant Operators |
| Welders, Cutters, Solderers, and Brazers |
