71351921 - Estuarine oceanography services

CPV code 71351921 in the EU Common Procurement Vocabulary refers to Estuarine oceanography services. It sits at level 6 of the CPV hierarchy as a subcategory within the 71 division. This code is nested directly under 71351900, narrowing the broader category into the specific area of estuarine oceanography services. As a leaf code, 71351921 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 estuarine oceanography services. Contracting authorities across the EU use 71351921 in TED notices and national procurement portals to signal that a tender relates to estuarine oceanography services.