PSC H346 Inspection—Water Purification and Sewage Treatment Equipment

Federal Category 18.4: Equipment Related Services Quality Control

Inspection and Laboratory Services (except medical/dental): Water Purification and Sewage Treatment Equipment

Includes: Commercial Testing and Laboratory Services

Excludes: Medical and Dental Laboratory Services

Possible NAICS Codes
541380 – Testing Laboratories
221310 – Water Supply and Irrigation Systems
541620 – Environmental Consulting Services
541990 – All Other Professional, Scientific, and Technical Services
221320 – Sewage Treatment Facilities
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
237110 – Water and Sewer Line and Related Structures Construction
424690 – Other Chemical and Allied Products Merchant Wholesalers
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561990 – All Other Support Services