Archived - Standard Industrial Classification - Establishments (SIC-E) 1980

42 - Trade Contracting Industries

While general contractors, in response to market demand, build complete structures classifiable to broad specialization groups, trade contractors are classified by the specific component they contribute to the total structure. The specialized trade contractors are engaged in one aspect common to different structures requiring specialized skills or equipment. Normally they supply the general contractor with their specialized service but in repair construction, and to a lesser degree in new construction, trade contractors are often engaged as "prime contractors", or jobbers, dealing directly with the principals involved. Establishments primarily engaged in maintenance, i.e. cleaning, rather than repair construction are classified in Industry Group 995 - Services to Buildings and Dwellings those primarily engaged in maintenance of highways, streets and bridges are classified in 4591 - Highway, Street and Bridge Maintenance Industry and those primarily engaged in maintaining wharves and docks are classified in 4559 - Other ServiceIndustries Incidental to Water Transport.

Archived - Standard Industrial Classification - Establishments (SIC-E) 1980 - Classification structure
Code Minor group
421Site Work Site Work
422Structural and Related Work Structural and Related Work
423Exterior Close-In Work Exterior Close-In Work
424Plumbing, Heating and Air Conditioning, MechanicalWork Plumbing, Heating and Air Conditioning, MechanicalWork
425Mechanical Specialty Work Mechanical Specialty Work
426Electrical Work Electrical Work
427Interior and Finishing Work Interior and Finishing Work
429Other Trade Work Other Trade Work
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