Description
Inspection and Laboratory Services (except medical/dental): Pipe, Tubing, Hose, and Fittings

Includes
Includes: Commercial Testing and Laboratory Services

Excludes
Excludes: Medical and Dental Laboratory Services

Possible NAICS Codes
541990 – All Other Professional, Scientific, and Technical Services
541620 – Environmental Consulting Services
541380 – Testing Laboratories and Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
562998 – All Other Miscellaneous Waste Management Services
561621 – Security Systems Services (except Locksmiths)
561210 – Facilities Support Services
486210 – Pipeline Transportation of Natural Gas
332321 – Metal Window and Door Manufacturing
237110 – Water and Sewer Line and Related Structures Construction