| 912.23 Construction, General (Backfill Services, Digging, Ditching, Road Grading, Rock Stabilization, etc.) |
| 912.27 Construction, Irrigation System |
| 912.40 Demolition Services |
| 912.44 Excavation Services |
| 912.59 Maintenance and Repair, Statues and Monuments |
| 912.68 Monitoring Services, Structural |
| 912.73 Paver Block Installation |
| 912.75 Quality Control Testing Services for Construction |
| 912.76 Striping Streets, Parking Facilities, Lane Divisions, etc. (Paint) |
| 913.19 Construction, Curb and Gutter (Includes Maintenance, Repair, and Removal) |
| 913.27 Construction, Highway and Road |
| 913.36 Construction, Parking Lot and Alley |
| 913.39 Construction, Pipe Culvert |
| 913.40 Construction, Pipeline |
| 913.45 Construction, Sewer and Storm Drain |
| 913.47 Construction, Sidewalk and Driveway (Includes Pedestrian and Handicap Ramps) |
| 913.50 Construction, Street (Major and Residential)(Includes Reconstruction) |
| 913.57 Construction, Vaulted Sidewalk |
| 913.58 Construction, Viaduct (Includes Reconstruction) |
| 913.59 Construction and Upgrades, Wastewater Treatment Plant |
| 913.60 Construction, Water System, Main and Service Line |
| 913.63 Lime Slurry Removal Services |
| 914.27 Carpentry |
| 914.30 Concrete |
| 914.44 Flooring |
| 914.47 Glass and Glazing |
| 914.50 Heating, Ventilating and Air Conditioning (HVAC) |
| 914.53 Insulation |
| 914.55 Masonry |
| 914.58 Metal Work |
| 914.61 Painting and Wallpapering |
| 914.64 Plastering |
| 914.73 Roofing and Siding |
| 914.79 Structural Steel |
| 914.80 Stucco |
| 914.83 Tile and Marble Work, All Types |
| 914.84 Trade Services, Construction (Not Otherwise Classified) |
| 914.85 Welding |
| 914.88 Wood |
| 925.17 Civil Engineering |
| 925.28 Drainage Engineering |
| 925.33 Engineer Services, Professional |
| 925.38 Field Engineering |
| 925.44 General Construction: Management, Scheduling, Cost Estimation - Engineering |
| 925.49 Highways; Streets; Airport Pay-Parking Lots - Engineering |
| 925.55 Inspecting, General/Engineering |
| 925.61 Land Development and Planning/Engineering |
| 925.93 Traffic and Transportation Engineering |
