Hazardous Materials Removal Workers
Highway Maintenance Workers
Rail-Track Laying & Maintenance Equipment Operators
Septic Tank Servicers & Sewer Pipe Cleaners
Segmental Pavers
Derrick Operators, Oil & Gas
Rotary Drill Operators, Oil & Gas
Service Unit Operators, Oil, Gas, & Mining
Earth Drillers, except Oil & Gas
Explosives Workers, Ordinance Handling Experts, & Blasters
Continuous Mining Machine Operators
Mine Cutting & Channeling Machine Operators
Rock Splitters, Quarry
Roof Bolters, Mining
Roustabouts, Oil & Gas
Helpers - Extraction Workers
Solar Photovoltaic Installers
Solar Thermal Installers & Technicians