Repair or Alteration of Air Traffic Control Training Facilities
Possible NAICS Codes
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
236220 – Commercial and Institutional Building Construction
237130 – Power and Communication Line and Related Structures Construction
237310 – Highway, Street, and Bridge Construction
238990 – All Other Specialty Trade Contractors
561621 – Security Systems Services (except Locksmiths)
