New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction, Commercial and Institutional Building Construction, Highway, Street, and Bridge Construction

Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction, Highway, Street, and Bridge Construction

Environment, Conservation and Wildlife Organizations, Administration of Conservation Programs

Architectural Services, Engineering Services, Testing Laboratories, Environmental Consulting Services, Facilities Support Services