Service First

C-2: Insulation and Acoustical Contractor

Installs insulating media and preformed architectural acoustical materials for temperature and sound control, including batt, blown, rigid board, spray-applied, and acoustical tile or panel systems.

Not authorized: Does not authorize removal of asbestos-containing materials.

C-9: Drywall Contractor

Lays out and installs gypsum wall board and assemblies, including nonstructural metal framing members, and performs taping and texturing operations to produce a continuous smooth or textured surface.

Not authorized: Does not include lathing and plastering (see C-35).

C-10: Electrical Contractor

Places, installs, erects, or connects electrical wires, fixtures, appliances, apparatus, raceways, conduits, solar photovoltaic cells, or any part thereof which generate, transmit, transform, or utilize electrical energy.

Not authorized: Electricians working under a C-10 must be certified per CA Labor Code.

C-20: Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) Contractor

Fabricates, installs, maintains, services, and repairs warm-air heating systems and water heating heat pumps, ventilating systems, air-conditioning systems, and the ducts, registers, flues, humidity and thermostatic controls and air filters in connection with these systems. Includes solar-powered HVAC systems.

Not authorized: Does not include boiler or steam heating (see C-4) or refrigeration below 50F (see C-38).

C-21: Building Moving/Demolition Contractor

Raises, lowers, cribs, underpins, demolishes, moves, or removes structures including their foundations.

Not authorized: Does not include alterations, additions, repairs, or rehabilitation of permanently retained portions of structures.

C-33: Painting and Decorating Contractor

Prepares surfaces by scraping, sandblasting, or other means and applies paints, papers, textures, fabrics, pigments, oils, varnishes, shellacs, stains, waxes, adhesives, and other coatings for decorating, protecting, fireproofing, and waterproofing.

C-36: Plumbing Contractor

Provides means for a supply of safe water and proper disposal of fluid waste, including piping, storage tanks, venting, gas appliances and connections, water and gas piping, water heating equipment including solar, and health and safety devices such as backflow preventers and gas earthquake valves.

Not authorized: Does not include forced warm-air units (see C-20).

C-53: Swimming Pool Contractor

Constructs swimming pools, spas, or hot tubs, including installation of solar heating equipment using necessary trades and skills.

Not authorized: Does not include replacing, repairing, or installing pool motors or pumps (see D-35).

D35: Pool and Spa Maintenance

Maintains and repairs swimming pools, spas, and hot tubs, including motors and pumps.

Not authorized: Does not include construction of new pools (see C-53).