45232422 - Sludge-treatment works

CPV code 45232422 in the EU Common Procurement Vocabulary refers to Sludge-treatment works. It sits at level 6 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45232400, narrowing the broader category into the specific area of sludge-treatment works. As a leaf code, 45232422 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 sludge-treatment works. Contracting authorities across the EU use 45232422 in TED notices and national procurement portals to signal that a tender relates to sludge-treatment works.