PSC (Product and Service Codes), US Federal

Product and Service Codes (PSC) are the four-character classification codes assigned by the US federal government to every procurement action to describe what product or service is being acquired. Every contract and solicitation published on SAM.gov carries a PSC alongside the naics code, and USAspending.gov uses PSC to aggregate federal spending by category.

What are PSC codes?

PSC codes use a four-character structure. For services, the first character is a letter (for example, R for Professional, Administrative, and Management Support Services; D for IT and Telecom). For products, the first two characters are numbers corresponding to the Federal Supply Group, following the logic of the fsc (Federal Supply Classification) system. The full code adds further specificity within those groups. The entire PSC manual is published by the US General Services Administration and the Department of Defense and is revised periodically.

PSC codes appear on every contract action reported to the Federal Procurement Data System (FPDS-NG) and are the primary axis for analysing federal spending patterns by category. A supplier researching the federal market can query USAspending.gov by PSC to see how much agencies spent in a given category, which agencies bought the most, and which companies won the contracts. This makes PSC codes a powerful market intelligence tool as well as an operational registration requirement.

Why PSC codes matter for bidders

Knowing the correct PSC for your offerings helps in two concrete ways. First, it tells you where to look on SAM.gov when searching for relevant solicitations, since filtering by PSC narrows the opportunity list far more precisely than keyword search alone. Second, award data on USAspending.gov is organised by PSC, so a supplier researching incumbent contractors, typical award sizes, and buying agency patterns for a given category needs to work from the PSC code. Pairing PSC analysis with naics size-standard research tells a supplier both what the market looks like and whether set-aside programs apply.

FAQ

How is PSC different from NAICS?

NAICS classifies the industry of the supplying firm and determines small business size standards. PSC classifies the specific product or service being bought. Both appear on federal solicitations and serve different administrative and analytical purposes.

Where can I find the PSC code manual?

The current PSC manual is published by the US GSA and is available through the SAM.gov help resources and the FPDS-NG portal. It is updated periodically, so suppliers should check for revised editions when codes appear to be missing or reclassified.

Can I register PSC codes in SAM.gov?

SAM.gov registration uses naics codes to define a supplier's business scope, not PSC codes. PSC codes are assigned by the buying agency to the requirement. However, understanding PSC codes helps suppliers search effectively and analyse the competitive landscape before bidding.