The premiere contractor school to assist you in passing your state contractor license exam.
With over 14 years of experience preparing candidates for the contractor exams for the trade and business and law, Contractor School Online (CSO) is your primary resource to help you pass your state contractor license exam! We offer online practice tests, study materials, books, CD-ROMs, crash courses and more.
Enroll today and get a head start on passing your state contractor exam! Did you know California State Contractors Board will accept Self-Employed Experience?
Click on a trade below for study packages, trade information, or state test samples.
General Licenses
A - General Engineering ContractorB - General Building Contractor
Contractors License Classifications
- C-2 - Insulation and Acoustical
- C-4 - Boiler, Hot Water Heating and Steam Fitting
- C-5 - Carpentry, Cabinets, and Millwork
- C-6 - Cabinet and Mill Work Contractors
- C-7 - Low Voltage Systems
- C-8 - Concrete
- C-9 - Drywall
- C-10 - Electrical
- C-11 - Elevator Installation
- C-12 - Earthwork and Paving
- C-13 - Fencing
- C-15 - Flooring and Floor Covering
- C-16 - Fire Protection
- C-17 - Glazing
- C-20 - Warm-Air Heating, Ventilating and Air Conditioning
- C-21 - Building Moving and Demolition
- C-23 - Ornamental Metal
- C-27 - Landscaping
- C-28 - Lock and Security Equipment
- C-29 - Masonry
- C-31 - Construction Zone Traffic Control Contractor
- C-32 - Parking and Highway Improvement
- C-33 - Painting and Decorating
- C-34 - Pipeline
- C-35 - Lathing-Plastering-Stucco
- C-36 - Plumbing
- C-38 - Refrigeration
- C-39 - Roofing & Metal Roofing
- C-42 - Sanitation Systems
- C-43 - Sheet Metal
- C-45 - Electrical Sign
- C-46 - Solar
- C-47 - General Manufactured Housing
- C-50 - Reinforcing Steel
- C-55 - Water Conditioning
- C-57 - Water Well Drilling
- C-60 - Welding
- C-61 - Limited Specialty Classification
The classification you are interested in is not currently available, however, we continuously update our service offerings. Please let us know which classification is most important to you so we can add it right away! Also consider studying for your test directly from the many training books available at USA Builders Books!