5401 - Industrial Equipment Operator
5402 - Boiler Plant Operator
5406 - Utility Systems Operator
5407 - Electric Power Controller
5408 - Waste Water Treatment Plant Operator
5409 - Water Treatment Plant Operator
5413 - Fuels Distribution System Worker
5415 - Air Conditioning Equipment Operator
5419 - Stationary Engine Operator
5423 - Sandblaster
5426 - Lock and Dam Operator
5438 - Elevator Operator