Contractors Classification List
A – General Engineering Contractor
B – General Building Contractor
C – Specialty Contractor
- 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- C14 – Metal Roofing Contractor [repealed]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
- 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- C26 – Lathing Contractor [repealed]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 – Water Well Drilling Contractor
- C60 – Welding Contractor
- C61 – Limited Specialty:
- D01 – Architectural Porcelain (Now under D64)
- D02 – Asbestos Fabrication (Now under C-2)
- D03 – Awnings
- D04 – Central Vacuum Systems
- D05 – Communication Equipment (Converted to C-7)
- D06 – Concrete Related Services
- D07 – Conveyors-Cranes (Now under D21)
- D08 – Doors and Door Services (Now under D28)
- D09 – Drilling, Blasting and Oil Field Work
- D10 – Elevated Floors
- D11 – Fencing (Converted to C13)
- D12 – Synthetic Products
- D13 – Fire Extinguisher Systems (Now under C16)
- D14 – Floor Covering (Converted to C15)
- D15 – Furnaces (Now under “A” or C20)
- D16 – Hardware, Locks and Safes
- D17 – Industrial Insulation (Now under C-2)
- D18 – Prison and Jail Equipment (Under relevant class)
- D19 – Land Clearing (Now under C12 or “A” if license is required)
- D20 – Lead Burning and Fabrication (Now under D64)
- D21 – Machinery and Pumps
- D22 – Marble (Now under C29)
- D23 – Medical Gas Systems (Now under C36)
- D24 – Metal Products
- D25 – Mirrors and Fixed Glass (Now under C17)
- D26 – Mobile Home Installation and Repairs (Converted to C47)
- D27 – Movable Partitions (Now under D34)
- D28 – Doors, Gates and Activating Devices
- D29 – Paperhanging
- D30 – Pile Driving and Pressure Foundation Jacking
- D31 – Pole Installation and Maintenance
- D32 – Power Nailing and Fastening (Now under D64)
- D33 – Precast Concrete Stairs (Now under C23)
- D34 – Prefabricated Equipment
- D35 – Pool and Spa Maintenance
- D36 – Rigging and Rig Building (Now under “A”)
- D37 – Safes and Vaults (Now under D16)
- D38 – Sand and Water Blasting
- D39 – Scaffolding
- D40 – Service Station Equipment and Maintenance
- D41 – Siding and Decking
- D42 – Non-Electrical Sign Installation
- D43 – Soil Grouting (Now under C32, C12 or “A”)
- D44 – Sprinklers (Now under D12)
- D45 – Staff and Stone (Now under C29)
- D46 – Steeple Jack Work (under relevant class)
- D47 – Tennis Court Surfacing (Now under C12) or “A”)
- D48 – Theater and School Equipment (Now under D34)
- D49 – Tree Service
- D50 – Suspended Ceilings
- D51 – Waterproofing and Weatherproofing (under relevant class)
- D52 – Window Coverings
- D53 – Wood Tanks
- D54 – Rockscaping (Now under C15 or C27)
- D55 – Blasting (Now under C12 or “A”)
- D56 – Trenching Only
- D57 – Propane Gas Plants (Now under “A”)
- D58 – Residential Floating Docks (Now under “A”)
- D59 – Hydroseed Spraying
- D60 – Striping (Now under C32)
- D61 – Gold Leaf Gilding (Now under D64)
- D62 – Air and Water Balancing
- D63 – Construction Clean-up
- D64 – Non-specialized
- D65 – Weatherization and Energy Conservation