Support Activities for Oil and Gas Operations, Water and Sewer Line and Related Structures Construction, Other Heavy and Civil Engineering Construction, Site Preparation Contractors, Other Professional Equipment and Supplies Merchant Wholesalers

Residential Remodelers, Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Other Heavy and Civil Engineering Construction

New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction

Timber Tract Operations, Support Activities for Forestry, Construction Sand and Gravel Mining, Water Supply and Irrigation Systems, Sewage Treatment Facilities

Nursery and Tree Production, Construction Sand and Gravel Mining, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction

Other Crushed and Broken Stone Mining and Quarrying, Construction Sand and Gravel Mining, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction

Water Supply and Irrigation Systems, Sewage Treatment Facilities, Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction, Highway, Street, and Bridge Construction

New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction

Residential Remodelers, Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction

Timber Tract Operations, Forest Nurseries and Gathering of Forest Products, Logging, Finfish Fishing, Hunting and Trapping

Water and Sewer Line and Related Structures Construction

Water Supply and Irrigation Systems, Sewage Treatment Facilities, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction

class B-01

New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction

Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Site Preparation Contractors

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

Water and Sewer Line and Related Structures Construction

Crushed and Broken Limestone Mining and Quarrying, Crushed and Broken Granite Mining and Quarrying, Construction Sand and Gravel Mining, Industrial Sand Mining, Support Activities for Coal Mining

Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction

Water and Sewer Line and Related Structures Construction, All Other Specialty Trade Contractors