CPV code 71351800 designates Topographical and water divining services in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
71351800 sits under 71351000 (Geological, geophysical and other scientific prospecting services) and groups 2 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.