CLASSIFICATIONS AVAILABLE
A   General Engineering
B   General Building
C-4   Boiler, Water Heating and Steam Fitting
C-21   Building Moving/Demolition
C-6   Cabinet, Millwork and Finish Carpentry
C-8   Concrete
C-31   Construction Zone Traffic Control
C-9   Drywall
C-12   Earthwork and Paving
C-10   Electrical
C-45   Electrical Sign
C-11   Elevator
C-13   Fencing
C-16   Fire Protection
C-15   Flooring and Floor Covering
C-5   Framing and Rough Carpentry
C-47   General Manufactured Housing
C-17   Glazing
C-2    Insulation and Acoustical
C-27   Landscaping
C-35   Lathing and Plastering
C-28   Lock and Security Equipment
C-7   Low Voltage Systems
C-29   Masonry
C-23   Ornamental Metals
C-33   Painting and Decorating
C-32   Parking and Highway Improvement
C-34   Pipeline
C-36   Plumbing
C-38   Refrigeration
C-50   Reinforcing Steel
C-39   Roofing
C-42   Sanitation Systems
C-43   Sheet Metal
C-46   Solar
C-51   Structural Steel
C-53   Swimming Pool
C-54   Tile (Ceramic and Mosaic)
C-20   Warm Air Heating,Ventilating and Air Conditioning
C-55   Water Conditioning
C-60   Welding
C-57   Well Drilling (Water)
C-61   Limited Specialty (All trades not covered above)
ASB   Asbestos Abatement Certification
HAZ   Hazardous Substance Removal Certification
LAW   Law and Business

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