71353100 - Hydrographic surveying services

CPV code 71353100 in the EU Common Procurement Vocabulary refers to Hydrographic surveying services. It sits at level 5 of the CPV hierarchy as a subcategory within the 71 division. This code is nested directly under 71353000, narrowing the broader category into the specific area of hydrographic surveying services. As a leaf code, 71353100 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns hydrographic surveying services. Contracting authorities across the EU use 71353100 in TED notices and national procurement portals to signal that a tender relates to hydrographic surveying services.