CPV code 03210000 designates Cereals and potatoes in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
03210000 sits under 03200000 (Cereals, potatoes, vegetables, fruits and nuts) and groups 2 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.