What Is a PSC Code (Product and Service Code)?

What a PSC describes

PSC codes answer the question 'what was purchased?' They classify the deliverable: a physical product, a service, or research and development. This is different from classifying the contractor's industry — that is the job of NAICS. A single contractor can deliver across many PSC categories.

How PSC codes are structured

A PSC is four characters. Products use numeric codes grouped into Federal Supply Groups (the first two digits), while services and R&D use codes that begin with a letter. For example, product groups in the 10–14 range cover weapons, ammunition, and related ordnance, while service codes beginning with letters cover categories such as professional services, IT, or facilities support.

PSC vs NAICS

• PSC — what was bought (the product or service).
• NAICS — the industry of the contractor performing the work.

Why PSC matters for research

PSC is one of the most useful ways to find comparable awards. If you want to see who supplies a particular kind of product or service to the government, browsing by PSC groups those awards together regardless of which industry the suppliers come from. It is also a key signal for understanding the nature of an award at a glance.

How the first characters reveal the category

Because the leading characters of a PSC carry meaning, you can often understand an award's nature before reading anything else. Numeric product groups cluster related items together — for instance, the 10–14 range covers weapons, ordnance, ammunition, and guided missiles, while other numeric ranges cover aircraft, ships, vehicles, electronics, and more. Service and research codes begin with a letter, with families for professional services, IT and telecommunications, facilities, medical services, and research and development. Learning a handful of the families you care about lets you scan a list of awards and immediately see what each one is for.

Using PSC for competitive and market research

PSC is a natural lens for market analysis. Pick the code or family that matches what you sell, and the awards under it become a map of demand: which agencies buy it, which companies win it, and at what scale. That is far more precise than searching by keyword, because the government has already classified each award for you. Pairing PSC with NAICS narrows it further — the product or service plus the industry of the supplier.

Common PSC mistakes

• Confusing PSC (what was bought) with NAICS (the supplier's industry).
• Assuming a four-character code with a letter is invalid — letter-led codes are services and R&D.
• Reading a single PSC as the entire scope of a complex award that may touch several.

Frequently asked questions