| Code | Title | Category |
| A |
General Engineering Contractor |
General |
| ASB |
Asbestos Certification |
Certification |
| B |
General Building Contractor |
General |
| B-2 |
Residential Remodeling Contractor |
General |
| C-10 |
Electrical Contractor |
Specialty |
| C-11 |
Elevator Contractor |
Specialty |
| C-12 |
Earthwork and Paving Contractors |
Specialty |
| C-13 |
Fencing Contractor |
Specialty |
| C-15 |
Flooring and Floor Covering Contractors |
Specialty |
| C-16 |
Fire Protection Contractor |
Specialty |
| C-17 |
Glazing Contractor |
Specialty |
| C-2 |
Insulation and Acoustical Contractor |
Specialty |
| C-20 |
Warm-Air Heating, Ventilating and Air-Conditioning Contractor |
Specialty |
| C-21 |
Building Moving/Demolition Contractor |
Specialty |
| C-22 |
Asbestos Abatement Contractor |
Specialty |
| C-23 |
Ornamental Metal Contractor |
Specialty |
| C-27 |
Landscaping Contractor |
Specialty |
| C-28 |
Lock and Security Equipment Contractor |
Specialty |
| C-29 |
Masonry Contractor |
Specialty |
| C-31 |
Construction Zone Traffic Control Contractor |
Specialty |
| C-32 |
Parking and Highway Improvement Contractor |
Specialty |
| C-33 |
Painting and Decorating Contractor |
Specialty |
| C-34 |
Pipeline Contractor |
Specialty |
| C-35 |
Lathing and Plastering Contractor |
Specialty |
| C-36 |
Plumbing Contractor |
Specialty |
| C-38 |
Refrigeration Contractor |
Specialty |
| C-39 |
Roofing Contractor |
Specialty |
| C-4 |
Boiler, Hot Water Heating and Steam Fitting Contractor |
Specialty |
| C-42 |
Sanitation System Contractor |
Specialty |
| C-43 |
Sheet Metal Contractor |
Specialty |
| C-45 |
Sign Contractor |
Specialty |
| C-46 |
Solar Contractor |
Specialty |
| C-47 |
General Manufactured Housing Contractor |
Specialty |
| C-49 |
Tree and Palm Contractor |
Specialty |
| C-5 |
Framing and Rough Carpentry Contractor |
Specialty |
| C-50 |
Reinforcing Steel Contractor |
Specialty |
| C-51 |
Structural Steel Contractor |
Specialty |
| C-53 |
Swimming Pool Contractor |
Specialty |
| C-54 |
Ceramic and Mosaic Tile Contractor |
Specialty |
| C-55 |
Water Conditioning Contractor |
Specialty |
| C-57 |
Well Drilling Contractor |
Specialty |
| C-6 |
Cabinet, Millwork and Finish Carpentry Contractor |
Specialty |
| C-60 |
Welding Contractor |
Specialty |
| C-61 |
Limited Specialty |
Specialty |
| C-7 |
Low Voltage Systems Contractor |
Specialty |
| C-8 |
Concrete Contractor |
Specialty |
| C-9 |
Drywall Contractor |
Specialty |
| HAZ |
Hazardous Substance Removal Certification |
Certification |