New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers, Wood Preservation

Highway, Street, and Bridge Construction, Poured Concrete Foundation and Structure Contractors, All Other Specialty Trade Contractors, Concrete Pipe Manufacturing, Iron and Steel Mills

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Concrete Block and Brick Manufacturing, Concrete Pipe Manufacturing

Water and Sewer Line and Related Structures Construction, Plastics Pipe and Pipe Fitting Manufacturing, All Other Plastics Product Manufacturing, Concrete Pipe Manufacturing