"Harvesting the Sun"

California Contractor State License Board Definitions

 Class A – General Engineering Contractor

A general engineering contractor is a contractor whose principal contracting business is in connection with fixed works requiring specialized engineering knowledge and skill, including the following divisions or subjects: irrigation, drainage, water power, water supply, flood control, inland waterways, harbors, docks and wharves, shipyards and ports, dams and hydroelectric projects, levees, river control and reclamation works, railroads, highways, streets and roads, tunnels, airports and airways, sewers and sewage disposal plants and systems, waste reduction plants, bridges, overpasses, underpasses, and other similar works, pipelines and other systems for the transmission of petroleum and other liquids or gaseous substances, parks, playgrounds and other recreational works, refineries, chemical plants and similar industrial plants requiring specialized engineering knowledge and skill, powerhouses, power plants and other utilities plants and installations, mines and metallurgical plants, land leveling and earthmoving projects, excavating, grading, trenching, paving and surfacing work and cement and concrete works in connection with the above mentioned fixed works.

Authority cited: Business and Professions Code, Section 7056

Class B – General Building Contractor

*a) Except as provided in this section, a general building contractor is a contractor whose principal contracting business is in connection with any structure built, being built, or to be built, for the support, shelter and enclosure of persons, animals, chattels or moveable property of any kind requiring in its construction the use of at least two unrelated building trades or crafts, or to do or superintend the whole or any part thereof.

This does not include anyone who merely furnishes material or supplies under Section 7045 without fabricating them into, or consuming them in the performance of the work of the general building contractor.

*b) A general building contractor may take a prime contract or a subcontract for a framing or carpentry project. However, a general building contractor shall not take a prime contract for any project involving trades other than framing or carpentry unless the prime contract requires at least two unrelated building trades or crafts other than framing or carpentry, or unless the general building contractor holds the appropriate license classification or subcontracts with an appropriately licensed contractor to perform the work. A general building contractor shall not take a subcontract involving trades other than framing or carpentry, unless the subcontract requires at least two unrelated trades or crafts other than framing or carpentry, or unless the general building contractor holds the appropriate license classification. The general building contractor may not count framing or carpentry in calculating the two unrelated trades necessary in order for the general building contractor to be able to take a prime contract or subcontract for a project involving other trades.

*c) No general building contractor shall contract for any project that includes the “C-16” Fire Protection classification as provided for in Section 7026.12 or the “C-57” Well Drilling classification as provided for in Section 13750.5 of the Water Code, unless the general building contractor holds the specialty license or subcontracts with the appropriately licensed specialty contractor.

*Authority cited: Business and Professions Code, Section 7057

C-10 – Electrical Contractor

An electrical contractor places, installs, erects or connects any electrical wires, fixtures, appliances, apparatus, raceways conduits, solar photovoltaic cells or any part thereof, which generate, transmit, transform or utilize electrical energy in any form or for any purpose.

Authority cited: Business and Professions 832.10 CCR

C-39 – Roofing Contractor

A roofing contractor installs products and repairs surfaces that seal, waterproof and weatherproof structures. This work is performed to prevent water or its derivatives, compounds or solids from penetrating such protection and gaining access to material or space beyond. In the course of this work, the contractor examines and/or prepares surfaces and uses the following material: asphaltum, pitch, tar, felt, glass fabric, urethane foam, metal roofing systems, flax, shakes, shingles, roof tile, slate, or any other roofing, waterproofing or membrane material(s) or a combination thereof.

Authority cited: Business and Professions 832.39 CCR

C-46 – Solar Contractor

A solar contractor installs, modifies, maintains, and repairs active solar energy systems. An active solar energy system consists of components, which are thermally isolated from the living space for collection of solar energy and transfer of thermal energy to provide electricity and/or heating and cooling of air or water. Active solar energy systems include, but are not limited to, forced air systems, forced circulation water systems, thermo siphon systems, integral collector/storage systems, radiant systems, evaporative cooling systems with collectors, regenerative rock bed cooling systems, photovoltaic cells, and solar assisted absorption cooling systems. A licensee classified in this section shall not undertake or perform building or construction trades, crafts or skills, except when required to install an active solar energy system.

Authority cited: Business and Professions 832.46 CCR