FEDERAL BUSINESS DEVELOPMENT
Federal Supply Classification (FSC) and Product Service Codes (PSC) Explained
Product Service Codes (PSC) are the four-character codes federal agencies use to describe what they are buying. Codes for products come from the Federal Supply Classification (FSC) system, and codes for services use letters. They matter to you because buyers, contract data, and market research tools all use them, even though a GSA Multiple Award Schedule (MAS) contract is organized by SIN.
What is the difference between FSC and PSC?
The Federal Supply Classification organizes physical goods into numeric groups and classes. Product Service Codes are the broader code set that includes FSC product codes along with lettered codes for services and research and development. In practice, people use “FSC” and “PSC” loosely. What matters is that each code describes the type of product or service being purchased.
Where do the codes come from?
The PSC Manual is published on Acquisition.gov, and it is the authoritative source for the current codes and their descriptions. Codes are updated from time to time, so use the current manual rather than a list copied from a website. Some older materials attribute the manual to other organizations. Check Acquisition.gov.
How do PSC, NAICS, and SIN differ?
PSC
Describes what is being bought in a specific transaction, and appears in solicitations and contract data.
NAICS
Classifies the industry of a business and drives SBA size standards.
SIN
The GSA MAS category that defines what you may sell on the contract.
They overlap, but they are not interchangeable. A single SIN may map to several PSCs and several NAICS codes. See What NAICS Code Do I Need for a GSA Schedule? and GSA MAS SINs Explained.
How do you use PSC codes in your business development?
- Find the codes that describe your offerings in the PSC Manual.
- Use USAspending.gov to search those codes and see which agencies spend the most.
- Use SAM.gov to find opportunities posted under those codes.
- Add the codes to your capabilities statement, so buyers can match you to needs.
- Track how agencies label the same purchase. Some describe a solution differently than you would.
What do the service codes look like?
Service codes begin with a letter. For example, R covers professional, administrative, and management support services, D covers information technology and telecommunications services, and U covers education and training services. Each letter has four-character subcodes. See Complete PSC Service Codes Reference.
What do the product codes look like?
Product codes are numeric. The first two digits identify a Federal Supply Group, and the four digits identify the class. See FSC Product Codes Reference.
Do you need to register PSC codes in SAM.gov?
SAM.gov asks for NAICS codes, and it lets you add product and service codes in your entity profile so buyers can find you in searches. Keep them accurate and consistent with what you offer.
FSC and PSC Code FAQs
Choosing codes and understanding how they are used.
Selection, updates, and GSA categories
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Do I need to know my PSC to get a GSA Schedule?
Not to submit an offer. You need to choose SINs. PSCs are useful for research and marketing.
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Can one product have more than one PSC?
Buyers choose the code that best describes their requirement, so similar products may appear under different codes in different solicitations.
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How often do codes change?
The PSC Manual is updated periodically. Check the current manual.
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Are PSC codes the same as GSA category codes?
No. GSA MAS uses SINs and large categories. PSC codes come from the federal government’s classification system.
Connect classification to your federal sales plan
Use codes to focus research, then connect the results to your contract strategy.
Find the agencies that buy what you sell
Talk with TurboGSA about focused federal market research and a practical business development plan.