90731300 - Air pollution protection services

CPV code 90731300 in the EU Common Procurement Vocabulary refers to Air pollution protection services. It sits at level 5 of the CPV hierarchy as a subcategory within the 90 division. This code is nested directly under 90731000, narrowing the broader category into the specific area of air pollution protection services. As a leaf code, 90731300 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 air pollution protection services. Contracting authorities across the EU use 90731300 in TED notices and national procurement portals to signal that a tender relates to air pollution protection services.