031-03100 AIR CONDITIONING, HEATING, AND VENTILATING EQUIPMENT, PARTS AND ACCESSORIES | 145-14500 Brushes (See Class 485 For Janitorial Type) | 210-21000 CONCRETE AND METAL PRODUCTS, CULVERTS, PILINGS, SEPTIC TANKS, ACCESSORIES AND SUPPLIES | 210-21007 BASINS, CATCH, INCLUDING PART AND ACCESSORIES | 210-21030 CURBS, PARKING AND CURB BOXES: VEHICLE, INCLUDING RECYCLED | 910-91000 Building Maintenance, Installation And Repair Services | 910-91052 Maintenance And Repair Services, Building (Not Otherwise Classified) | 910-91060 PLUMBING MAINTENANCE AND REPAIR SERVICES: PRESSURE TAPPING SERVICES, PIPE FREEZES, TOILETS, ETC. | 912-91200 CONSTRUCTION SERVICES, GENERAL, INCLUDING MAINTENANCE AND REPAIR SERVICES) | 912-91223 CONSTRUCTION, GENERAL: BACKFILL SERVICES, DIGGING, DITCHING, ROAD GRADING, ROCK STABILIZATION, ETC. | 912-91244 Excavation Services | 913-91300 CONSTRUCTION SERVICES, HEAVY, INCLUDING MAINTENANCE AND REPAIR SERVICES | 913-91319 CONSTRUCTION, CURB AND GUTTER, INCLUDING MAINTENANCE, REPAIR, AND REMOVAL SERVICES | 913-91338 CONSTRUCTION, CHILLED WATER PIPE INSTALLATION | 913-91345 Construction, Sewer And Storm Drain | 913-91347 CONSTRUCTION, SIDEWALK AND DRIVEWAY, INCLUDING PEDESTRIAN AND HANDICAP RAMPS | 913-91356 CONSTRUCTION, UTILITY AND UNDERGROUND PROJECTS | 913-91362 CONSTRUCTION, CONCRETE, POUR-IN-PLACE, FORM, PLACE, FINISH | 913-91389 MAINTENANCE AND REPAIR, UTILITY AND UNDERGROUND PROJECTS | 968-96872 Snow And Ice Removal Services | 968-96873 Storm Drain Cleaning, Repair, And Sludge Removal Services | 988-98836 GROUNDS AND ROADSIDE MAINTENANCE: MOWING, EDGING, PLANT, NOT TREE TRIMMING, ETC. | 988-98875 ROADSIDE MAINTENANCE SERVICES, INCLUDING MOWING, ETC. (INACTIVE, PLEASE SEE COMMODITY CODE 988-36 EFFECTIVE JANUARY 1, 2016) | C-00249 CONCRETE FOUNDATION, FOOTINGS/MASONRY WORK | C-00260 CONCRETE PAVEMENT | C-00270 CONCRETE REPAIRS | C-00310 CURBS, SIDEWALKS A MISCELLANEOUS CONCRETE WORK | C-00370 DRAINAGE | C-00510 EXCAVATION | C-00590 GENERAL CONSTRUCTION | C-00641 GRADING AND DRAINAGE, INCLUDING DRAINAGE STRUCTURE | C-00650 GRADING AND PAVING, INCLUDING DRAINAGE STRUCTURES | C-01030 PAVEMENT BITUMINOUS | C-01040 PAVING CONCRETE | C-01110 PLUMBING | C-01480 SEWER PIPING & STORM DRAINS | C-01620 STEEL FABRICATION STRUCTURAL STEEL & ORNAMENTAL IR | C-01880 UNDERGROUND UTILITIES | C-01940 WELDING