CPV code 42961000 designates Command and control system in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
42961000 sits under 42960000 (Command and control system, printing, graphics, office automation and information-processing equipment) and groups 4 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.