What is a Product Service Code (PSC)?
A Product Service Code, or PSC, is a 4-character code used in federal procurement data to describe the product, service, or research purchased in a contract action. The official PSC Manual supplies the code hierarchy, titles, definitions, and usage guidance.
Because a PSC belongs to the purchase, the same contractor can appear under many PSCs. A company may sell software licenses, implementation services, maintenance, and research through separate actions even when those actions fall within related industries.
PSC code vs. NAICS code
A PSC describes what the government bought. A NAICS code describes the industry associated with the acquisition and connects the solicitation to an SBA size standard. One contract action commonly carries both codes.
The codes should not be substituted for each other. NAICS is useful for competition and size analysis; PSC is useful for understanding the actual product or service recorded on the action.
What a contractor's PSC mix shows
Observed PSCs can reveal a contractor's federal sales mix more directly than the industries asserted in its SAM registration. Repeated awards under the same PSC indicate what agencies have recorded buying from that entity.
PSC data still requires context. Codes can be broad, agency coding practices vary, and an action's description may be needed to understand the work. The code is a classification field, not a performance rating.
Products, services, and research codes
The PSC structure covers supplies and equipment, services, and research and development. Letter and number patterns identify broad families and progressively more specific categories under the current manual.
The manual changes over time. Historical actions retain the code reported for that action, so an analysis should preserve the award date and avoid silently rewriting old records to a newer classification.
How this registry uses PSC codes
federal.contractors displays PSCs observed on a contractor's prime award records. Profiles pair each code with award details and source dates so the classification remains tied to the reported purchase rather than presented as a general claim about the company.
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