PSC Z2LC Repair or Alteration of Tunnels and Subsurface Structures

Services
Federal Category 4.4: Facilities & Construction Facility Related Services

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
237990 – Other Heavy and Civil Engineering Construction
237310 – Highway, Street, and Bridge Construction
237110 – Water and Sewer Line and Related Structures Construction
238990 – All Other Specialty Trade Contractors
238190 – Other Foundation, Structure, and Building Exterior Contractors
238110 – Poured Concrete Foundation and Structure Contractors
561210 – Facilities Support Services
238910 – Site Preparation Contractors
561990 – All Other Support Services