906-90638 GENERAL CONSTRUCTION, ARCHITECTURAL SERVICES | 909-90900 BUILDING CONSTRUCTION SERVICES, NEW, INCLUDING MAINTENANCE AND REPAIR SERVICES | 909-90910 Airport Facility Construction | 909-90916 Athletic Facility Construction | 909-90921 BUILDING CONSTRUCTION, INDUSTRIAL, WAREHOUSE, ETC. | 909-90922 BUILDING CONSTRUCTION, NON-RESIDENTIAL, OFFICE BLDG., ETC. | 909-90923 BUILDING CONSTRUCTION, RESIDENTIAL, APARTMENTS, ETC. | 909-90954 Home Construction, Single Family | 909-90976 Site Work (Incl. Site Clean-Up) | 911-91100 CONSTRUCTION AND UTILITIES, HIGHER EDUCATION | 912-91200 CONSTRUCTION SERVICES, GENERAL, INCLUDING MAINTENANCE AND REPAIR SERVICES) | 914-91428 CLEANING, INTERIOR AND EXTERIOR, NEW CONSTRUCTION | C-00090 BOILERS (NEW/REPAIR) | C-00180 CARPENTRY (GENERAL) | C-00330 DEMOLITION | C-00420 ELECTRICAL | C-00590 GENERAL CONSTRUCTION | C-00610 BUILDING | C-00660 HAULING | C-00960 PAINTING | C-01110 PLUMBING | C-01841 TREE TRIMMING & REMOVAL | C-01910 WASTE DISPOSAL | C-01930 WATERPROOFING & CAULKING