 |  | Chemical Engineers |
| | Electrical and Electronic Engineering Technicians |
| | Electrical and Electronics Drafters |
| | Electrical Engineers |
| | Electrical Power-Line Installers and Repairers |
| | Environmental Scientists and Specialists, Including Health |
| | Excavating and Loading Machine and Dragline Operators |
| | First-Line Supervisors/Managers of Construction Trades and Extraction Workers |
| | Geoscientists, Except Hydrologists and Geographers |
| | Industrial Machinery Mechanics |
| | Plumbers, Pipefitters, and Steamfitters |
| | Power Plant Operators |
| | Sales Representatives, Wholesale and Manufacturing, Technical and Scientific Products |
| | Service Station Attendants |
| | Surveying and Mapping Technicians |
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Computer & Information Systems Managers |
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Electronic Equipment Manufacturing |
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Gas Plant Operators |
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Geographic Information Specialists |
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Loading Machine Operators, Underground Mining |
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Mine Cutting and Channeling Machine Operators |
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Nuclear Technicians |
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Petroleum Engineers |
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Petroleum Pump System Operators, Refinery Operators, and Gaugers |
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Power Plant Operators |
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Rotary Drill Operators, Oil and Gas |
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Surveying Technicians |
