11.  What are the contractor license classifications?

The CSLB issues a license to contract in a particular trade or field of the construction profession. Each separate trade is recognized as a "classification." You may add as many classifications to your license as you can qualify for.

The CSLB issues licenses for the following classifications:

  • Class A General Engineering Contractor. The principal business is in connection with fixed works requiring specialized engineering knowledge and skill.
  • Class B General Building Contractor. The principal business is in connection with structures that shelter and enclose persons, animals, chattels, or movable property requiring in their construction more than two unrelated trades. The "B" contractor may contract any single or multiple trade or craft without the additional "C" specialty license.
  • Class C Specialty Contractor. There are 40 separate "C" license classifications for contractors whose construction work requires special skill and whose principal contracting business involves the use of specialized building trades or crafts. Manufacturers are considered to be contractors if engaged in on-site construction, alteration, or repair.

12.   In what trades may I obtain a class C specialty contractor's license?

You may obtain a license in any of the classifications listed below. For a detailed description of these classifications, consult the CSLB Rules and Regulations in the California Contractors License Law and Reference Book. (See table below.)

CLASSIFICATION CODE SECTION
Boiler, Hot Water Heating and Steam Fitting C 4 832.04
Building Moving and Demolition C 21 832.21
Cabinet and Mill Work No Longer C 6 832.06
Carpentry Combined with C-6 C 5 832.05
Concrete C 8 832.08
Drywall C 9 832.09
Earthwork and Paving C 12 832.12
Electrical (General) C 10 832.10
Electrical Signs C 45 832.45
Elevator Installation C 11 832.11
Fencing C 13 832.13
Fire Protection C 16 832.16
Flooring and Floor Covering C 15 832.15
General Manufactured Housing C 47 832.47
Glazing C 17 832.17
Insulation and Acoustical C 2 832.02
Landscaping C 27 832.27
Lathing C 26 832.26
Limited Specialty C 61 832.61
Lock and Security Equipment C 28 832.28
Low Voltage Systems C 7 832.07
Masonry C 29 832.29
Metal Roofing C 14 832.14
Ornamental Metals C 23 832.23
Parking and Highway Improvement C 32 832.32
Painting and Decorating C 33 832.33
Pipeline C 34 832.34
Plastering C 35 832.35
Plumbing C 36 832.36
Refrigeration C 38 832.38
Roofing C 39 832.39
Sanitation System C 42 832.42
Sheet Metal C 43 832.43
Solar C 46 832.46
Steel, Reinforcing C 50 832.50
Steel, Structural C 51 832.51
Swimming Pool C 53 832.53
Tile (Ceramic and Mosaic) C 54 832.54
Warm-Air Heating, Ventilating and Air Conditioning C 20 832.20
Water Conditioning C 55 832.55
Welding C 60 832.60
Well-Drilling (Water) C 57 832.57

13. Are there any special requirements for contractors who work with asbestos or other hazardous substances?

Contractors who work with asbestos or other hazardous substances are regulated by the United States Department of Labor, Federal Occupational Safety and Health Administration, and the California Department of Industrial Relations, Division of Occupational Safety and Health (DOSH), as well as by the CSLB. These contractors are subject to a number of certification, registration, reporting, and safety requirements.

Following are some of the CSLB basic requirements:

  • Before a license is issued, every licensee must complete, sign, and return the open-book examination contained in the booklet, Asbestos: A Contractor's Guide and Open-Book Examination. The booklet contains general information about asbestos-abatement standards.
  • Asbestos-abatement contractors must be certified by the CSLB. To become certified, a contractor must take and pass an EPA-accredited asbestos-abatement course; complete the Application for Asbestos Certification; pass a comprehensive Asbestos Abatement exam; and register with the Asbestos Contractor Registration Unit of DOSH.
  • Contractors who do hazardous substance removal work must be certified by the CSLB. Contractors who do hazardous substance removal work must complete an Application for Hazardous Substance Removal and Remedial Actions and pass a CSLB certification examination. Any contractor who has a class "A" General Engineering, "B" General Building, "C-36" Plumbing, "C-61 (D-40)" Service Station Equipment and Maintenance (no longer issued), "C-12" Earthwork and Paving, or "C-57" Well Drilling (Water) license is eligible to be certified.

In addition, contractors who install or remove underground storage tanks must hold this certification. CSLB Board policy currently limits certified contractors doing underground storage tank work as follows:

  • General engineering "A" contractors may install and/or remove underground storage tanks for any purpose at any location.
  • Plumbing "C-36" contractors may install and/or remove any underground storage tank that provides service to a building - including storage tanks for service stations.
  • Service station equipment and maintenance "C-61/D-40" contractors may install and/or remove fuel underground storage tanks at service stations or any other site up to a capacity of 20,000 gallons.
  • General building "B" contractors may, in the course of work performed under a contract that meets the requirements for the "B" classification (see Question 11), install and/or remove an underground storage tank if   properly certified for hazardous substance removal and remedial actions.
 
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