90450000 - Treatment services of septic tanks

CPV code 90450000 in the EU Common Procurement Vocabulary refers to Treatment services of septic tanks. It sits at level 3 of the CPV hierarchy as a class within the 90 division. This code is nested directly under 90400000, narrowing the broader category into the specific area of treatment services of septic tanks. As a leaf code, 90450000 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 treatment services of septic tanks. Contracting authorities across the EU use 90450000 in TED notices and national procurement portals to signal that a tender relates to treatment services of septic tanks.