The following Product Service Codes (PSCs) are commonly associated with NAICS 561621, Security Systems Services (except Locksmiths)

PSC N063 Installation of Equipment—Alarm, Signal, and Security Detection Systems

Services

PSC H363 Inspection—Alarm, Signal, and Security Detection Systems

Services

PSC J042 Maint/Repair/Rebuild of Equip- Fire Fighting/Rescue/Safety Equip; Environ Protect Equip/Matls

Services