PSC - Product Service Codes

Product Service Codes (PSC) are alpha/numeric, from A to Z, with I and O not used. Three numbers are added to the alpha to further define what type of service is needed. For example, in the service code D308, the D3 indicates that the general type of service is automatic data processing and telecommunication services, and the 08 indicates that the specific service is programming services. In another example, R608, the R means that the general type of service is professional, administrative, and management support services, and the 608 means that the specific service is translation and interpreting services (including sign language).

Go here to download the Product and Services Codes Manual:

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