A - 

Engineering 

B - 

Building 

C7 - 

Carpet Laying Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently prepare floor surfaces to a condition where acceptable fabric floor covering can be laid thereon and to lay such covering.

C8 -

Cement Concrete Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently proportion and mix aggregates, cement and water to make acceptable concrete and to pour, place and finish the same, including the placing and setting of screens and forms for driveways and sidewalks. Excluded in this classification is the work covered by classification C-3 (Asphalt, Paving & Surfacing Contractor)

C10 -

Concrete Paving & Surfacing Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently proportion, mix and place paving and surfacing consisting of graded mineral aggregates bonded with cement so that a firm, smooth surface suitable for roadways, runways and parking areas is obtained.

C11 - 

Demolition Contractor: A specialty contractor business is the execution of contracts requiring the ability to intelligently demolish all types of buildings or structures and to remove all of such buildings or structures from the premises on which it was built.

C12 -

Drywall Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently install cement board, gypsum wallboard systems and sheathing; to tape and fill joints and indentation of wallboard with simulated acoustic or gypsum texture. This classification does not include work performed by classification C-33 (Painting) and C-36 (Plastering) contractors.

C13 - 

Electrical Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to place, install, erect or connect any electrical wires, fixtures, appliances, apparatus, generators, raceways or conduits and lines which transmit, transform or utilize electrical energy, including repair and maintenance.

C14 - 

Electrical Sign Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently fabricate, install and erect electrical signs. Includes the maintenance of electrical signs.

C15 - 

Electronic System Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently install, maintain, repair and service electronic equipment and electronic controls for public address, intercommunication, master antenna and music distribution systems. Electronic controls include those controls in conjunction with other specialty contracting work.

C17 - 

Excavating, Grading & Trenching Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently dig, move and place earthen materials for a cut, fill, grade or trench, including stockpiling of materials.

C18 - 

Fencing Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently assemble, fabricate, install, alter, or repair metal fencing, gates, guard rails, and concrete fencing.

C21 - 

Floor Covering Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently prepare floor surfaces to a condition where he can lay acceptable flooring with the use of linoleum, rubber, vinyl, cork, asphalt, plastic aluminates or such other materials as are by custom and usage in the construction industry known as composition flooring.

C22 - 

Glazing Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently cut glass and to glaze frames, panels, sash and doors. It shall also include fabrication and installation of shower doors, tub enclosures, metal jalousies, store front metal and trim plastics, tempered glass doors including such items as frames and hardware and any allied products not stipulated above but affiliated with the glass and glazing industry.

C27 - 

Landscaping Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently prepare plots of land for architectural horticulture and to provide decorative treatment and arrange gardens, lawns, shrubs, vines, bushes, trees and other decorative vegetation; construct conservatories, hot and greenhouses, drainage and sprinkler systems and ornamental pools, tanks, and to fabricate and place garden furniture, statuary and monuments in connection therewith.

C30

Limited Home Improvement & Renovation Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently perform the carpentry work to remodel and/or to make repairs to existing building or structures and to do any other work which would be incidental and supplemental to such remodeling or repairing. This contractor shall be licensed only for contracts not exceeding thirty thousand dollars ($30,000.00).

C31 - 

Masonry Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently select, cut, and lay brick and other baked clay products, rough stone, cut and dressed stone, artificial stone and precast blocks, structural glass brick or block, laid at random or in courses with or without mortar.

C33 - 

Painting & Decorating Contractor: A specialty contracting business is the execution of contracts requiring the ability to intelligently prepare surfaces, including the taping of joints in wallboard, and to apply acceptable finishes thereon with the use of paints, varnishes, stains, fillers, waxes and any other vehicles and materials that may be mixed and applied as finish to surfaces of buildings including texture coating and coverings. This includes lead based paint removal & abatement.

C35 - 

Pile Driving & Foundation Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently drive pilings of wood, concrete or steel to cut off the same and prepare pilings for permanent foundations.

C36 - 

Plastering Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently prepare mixtures of sand, gypsum, plaster, quicklime or hydrated lime and water, or materials to create a permanent surface coating; including coloring for same, and to apply such mixtures by use of a plasterer’s trowel, brush or spray gun to any surface which offers a mechanical key for the support of such mixture, or to which such mixture will adhere by suction; and to apply lath or any other material that will provide a base for such mixture.

C37 - 

Plumbing Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently install water supply piping systems, waste water piping systems within such structures and works where people or animals live, work and/or assemble. Includes tapping into water lines and leak detection to indicate any leaks in water lines.

C40 - 

Refrigeration Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently construct, erect and install devices, machinery and units including tempe ration insulation units, ducts, blowers, registers, humidity and thermostatic controls for the control of air temperature below fifty degrees Fahrenheit in refrigerators, refrigerator rooms and insulated refrigerator spaces.

C42 - 

Roofing Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently prepare surfaces and apply a water-tight covering to such surfaces with the use of any or all of the following: asphalt, pitch, tar, felt, glass, flax composition, shingles, roof tile, slate and such other materials that are established by use and costumed as suitable for a water-tight cover.

C45 - 

Spray texture Coating Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently prepare surfaces and apply acceptable texture coating finishes. Includes cathodic protection to protect metal structure from corrosion. Sand /Water blasting also is included.

C50 - 

Tile Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to prepare a base upon which ceramic and other tile work, including all ceramic tile products, will adhere by suction or by adhesive and to install such tiles.

C51 - 

Warm Air Heating, Ventilating & Air Conditioning Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently fabricate and install warm air heating and cooling systems, complete air conditioning systems, repair and maintain air conditioning systems, except those air conditioning systems requiring refrigeration as an integral part of the system. The C-13 Electrical Contractor classification licenses is a prerequisite to obtaining this classification.

C53A - 

Solar Power Systems Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to place, install and erect photovoltaic panels, batteries, controls and related low voltage D.C. wiring. Prerequisite for the classification is C-13 (Electrical).

C55 - 

Waterproofing Contractor: A specialty contractor whose contracting business is the execution of contracts requiring the ability to intelligently apply felt, flax, glass, asphalt, pitch, latex, silicon or other materials or any combination for any thereof to surfaces to prevent, hold, keep and stop water vapor from penetrating and passing such materials. This includes epoxy coating and injection.

C61 - 

Communications/Telecommunications Contractor: A specialty contractor who installs, services, repairs and maintains all types of communication and/or telecommunication systems. These systems include, but are not limited to telephone systems, sound systems, cable television systems, Closed-Circuit video systems, satellite dish antennas, computer repair, computer networking and data systems including any associated cabling, wiring, or fiber optics. Prerequisite to this classification is C-13 Electrical.

C62 - 

Garage Door Installation (Doors and Windows Shutters) Contractor: A garage door installation contractor installs, services, repairs and maintains all types of residential, commercial or industrial, mechanical, overhead and sliding garage doors, including installation of window shutters which involves similar installation methods.

C66 - 

Shutter/Typhoon Shutters & Blinds Installation (Shutter/Typhoon Shutter and Window Coverings) Contractor: A Shutter/Typhoon Shutters & Blinds Installation contractor fabricates, maintains, repairs and installs decorative architectural functional window/glass or door covering products for the protection against typhoon force winds and criminal intrusion products. Including but not limited to the materials and fabrics that constitute louvers, shutters, Venetian and mini-blinds, residential or commercial draperies, and typhoon shutters, including expanded metal, aluminum, accordion, and panel-type window or door shutters/ typhoon shutters.