PSC Z1NE Maintenance of Water Supply Facilities

Services
Federal Category 4.4: Facilities & Construction Facility Related Services

Possible NAICS Codes
237110 – Water and Sewer Line and Related Structures Construction
221310 – Water Supply and Irrigation Systems
236220 – Commercial and Institutional Building Construction
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238990 – All Other Specialty Trade Contractors
237990 – Other Heavy and Civil Engineering Construction
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238320 – Painting and Wall Covering Contractors