Manufacturing
Food & Tobacco Products
Textile Mills & Apparel
Lumber & Wood Products
Furniture & Fixtures
Paper & Allied Products
Printing, Publishing and Allied Industries
Chemicals, Petrochemicals, Pharmaceuticals
Petroleum Refining & Related Industries
Rubber & Plastics
Leather & Leather Products
Stone, Clay, Glass, and Concrete Products
Primary Metals (Steel Mills, Foundries, Aluminum Mills, etc.)
Fabricated Metal Products
Industrial & Commercial Machinery/Computer Equipment
Electronic/Electrical Equipment (non-computers)
Transportation Equipment (Motor Vehicles, Boats/Ships, Aircraft, Trains, etc.)
Instrumentation
Transportation
Railroad (Passenger, Freight, Hazardous Materials Transport)
Local/Suburban/Urban Transit (Buses, Charters, Schools)
Motor Freight/Trucking/Hazardous Materials Transport
United States Postal Service
Water Transportation (Inland, Offshore, Ferries, Passenger, Cargo, etc.)
Transportation by Air (Airlines, Charters, Couriers, etc.)
Pipelines (Crude, Refined Products, Chemicals, Natural Gas)
Utilities
Electric, Gas and Sanitary Services
Generation (Fossil Fuels, Hydroelectric, Nuclear, Wind, Solar, Other)
Transmission (Electric, Natural Gas, Water)
Air/Water/Solid Waste Collection, Treatment, Disposal