What is a
CPC code
Also known as: Central Product Classification, UN CPC
A CPC code (Central Product Classification) is a classification number from the United Nations' international system for categorising goods and services. While CPV codes are the standard in EU/EEA public procurement, CPC codes form the global framework that underpins the WTO Government Procurement Agreement (GPA) — the main international treaty governing public procurement market access.
How do CPC codes work?
CPC codes consist of five digits organised in a hierarchy: sections (1 digit), divisions (2 digits), groups (3 digits), classes (4 digits) and subclasses (5 digits). The system covers all types of goods and services, from agricultural products to consulting services. First published by the UN in 1991, the system is now on version 2.1.
Under the GPA, CPC codes define which services fall within each party's procurement commitments. For example, construction services are defined by reference to CPC Division 51. When GPA parties negotiate market access, they use CPC codes in their schedules of commitments to specify exactly which service contracts are covered and which are excluded.
The difference between CPC and CPV
Understanding how the two classification systems relate is essential:
- CPC was developed by the UN for statistics and international trade, and is used in the WTO context
- CPV is the EU's dedicated system, designed specifically for public procurement and contract notices
- CPC uses five-digit codes, while CPV uses eight-digit codes plus a check digit
- The European Commission maintains official correspondence tables mapping CPV to CPC
In daily practice, suppliers encounter CPV codes when searching for tenders. However, CPC codes are critical for understanding which services are open to international competition under the GPA. Tools like Cobrief help suppliers navigate classification systems and find relevant procurement opportunities.
CPC codes are the global foundation for product classification, while CPV is the EU-adapted version used in everyday procurement practice. For suppliers looking to understand international procurement obligations and market access commitments, familiarity with the CPC system is valuable.