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 liquid 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 utility 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.
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 movable 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 materials 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 specialty 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.
Class “C” – Specialty Contractor
A specialty contractor is a contractor whose operations as such are the performance of construction work requiring special skill and whose principal contracting business involves the use of specialized building trades or crafts.C-2 – Insulation and Acoustical Contractor C-4 – Boiler, Hot Water Heating and Steam Fitting Contractor C-5 – Framing and Rough Carpentry Contractor C-6 – Cabinet, Millwork and Finish Carpentry Contractor C-7 – Low Voltage Systems Contractor C-8 – Concrete Contractor C-9 – Drywall Contractor C10 – Electrical Contractor C11 – Elevator Contractor C12 – Earthwork and Paving Contractors C13 – Fencing Contractor C14 – Metal Roofing Contractor [repealed] C15 – Flooring and Floor Covering Contractors C16 – Fire Protection Contractor C17 – Glazing Contractor C20 – Warm-Air Heating, Ventilating and Air-Conditioning Contractor C21 – Building Moving/Demolition Contractor C22 – Asbestos Abatement Contractor C23 – Ornamental Metal Contractor C26 – Lathing Contractor [repealed] C27 – Landscaping Contractor C28 – Lock and Security Equipment Contractor C29 – Masonry Contractor C31 – Construction Zone Traffic Control Contractor C32 – Parking and Highway Improvement Contractor C33 – Painting and Decorating Contractor C34 – Pipeline Contractor C35 – Lathing and Plastering Contractor C36 – Plumbing Contractor C38 – Refrigeration Contractor C39 – Roofing Contractor C42 – Sanitation System Contractor C43 – Sheet Metal Contractor C45 – Sign Contractor C46 – Solar Contractor C47 – General Manufactured Housing Contractor C50 – Reinforcing Steel Contractor C51 – Structural Steel Contractor C53 – Swimming Pool Contractor C54 – Ceramic and Mosaic Tile Contractor C55 – Water Conditioning Contractor C57 – Well Drilling Contractor C60 – Welding Contractor C-61 – Limited Specialty ASB – Asbestos Certification HAZ – Hazardous Substance Removal Certification