What is the difference between NAICS and PSC? Why does FPDS have both?
The North American Industrial Classification System (NAICS) classifies commercial activity into broad service categories, e.g., farming, manufacturer, wholesaler, retail, services. Contracts, on the other hand, generally purchase specific goods (such as cameras or telephones) and services. Therefore, FPDS has a second set of codes called Products and Services Codes (PSCs). While still rather general, the PSCs are more specific than NAICS.
