PSC Z1BC Maintenance of Radar and Navigational Facilities

Services
Federal Category 4.4: Facilities & Construction Facility Related Services

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
237130 – Power and Communication Line and Related Structures Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238160 – Roofing Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
237990 – Other Heavy and Civil Engineering Construction
562910 – Remediation Services
238990 – All Other Specialty Trade Contractors
561210 – Facilities Support Services
238910 – Site Preparation Contractors