Natural Gas Distribution, Freestanding Ambulatory Surgical and Emergency Centers, All Other Outpatient Care Centers, General Medical and Surgical Hospitals, Psychiatric and Substance Abuse Hospitals

Electric Power Distribution, Plumbing, Heating, and Air-Conditioning Contractors, Other Electronic Component Manufacturing, Totalizing Fluid Meter and Counting Device Manufacturing, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

Other Electric Power Generation, Commercial and Institutional Building Construction, Power and Communication Line and Related Structures Construction, Poured Concrete Foundation and Structure Contractors, Roofing Contractors

Natural Gas Liquid Extraction, Hydroelectric Power Generation, All Other Specialty Trade Contractors, Motor and Generator Manufacturing

Other Electric Power Generation

Hydroelectric Power Generation, Fossil Fuel Electric Power Generation, Nuclear Electric Power Generation, Power, Distribution, and Specialty Transformer Manufacturing, Switchgear and Switchboard Apparatus Manufacturing

Other Electric Power Generation, Power and Communication Line and Related Structures Construction

Other Electric Power Generation, Power and Communication Line and Related Structures Construction, Aircraft Manufacturing, Aircraft Engine and Engine Parts Manufacturing, Teleproduction and Other Postproduction Services

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

Other Electric Power Generation, Electric Bulk Power Transmission and Control

Electric Bulk Power Transmission and Control, Electric Power Distribution, Natural Gas Distribution, Steam and Air-Conditioning Supply, New Multifamily Housing Construction (except Operative Builders)

Other Electric Power Generation, Power and Communication Line and Related Structures Construction, Roofing Contractors, Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing, Storage Battery Manufacturing

Water Supply and Irrigation Systems, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction, Other Heavy and Civil Engineering Construction, Plumbing, Heating, and Air-Conditioning Contractors

Other Electric Power Generation, Power and Communication Line and Related Structures Construction, Roofing Contractors, Plumbing, Heating, and Air-Conditioning Contractors, All Other Specialty Trade Contractors

Other Electric Power Generation, Power and Communication Line and Related Structures Construction, Roofing Contractors, Plumbing, Heating, and Air-Conditioning Contractors, Heating Equipment (except Warm Air Furnaces) Manufacturing

Crude Petroleum and Natural Gas Extraction, Dimension Stone Mining and Quarrying, Drilling Oil and Gas Wells, Hydroelectric Power Generation, Water Supply and Irrigation Systems

Other Electric Power Generation, Sewage Treatment Facilities, All Other Specialty Trade Contractors, Environmental Consulting Services

Natural Gas Distribution, Water Supply and Irrigation Systems, Steam and Air-Conditioning Supply, Industrial Building Construction, Oil and Gas Pipeline and Related Structures Construction

Natural Gas Distribution, Water Supply and Irrigation Systems, Petroleum Refineries, All Other Petroleum and Coal Products Manufacturing, Industrial Gas Manufacturing

MODERNIZATION