45259100 - Wastewater-plant repair and maintenance work

CPV code 45259100 in the EU Common Procurement Vocabulary refers to Wastewater-plant repair and maintenance work. It sits at level 5 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45259000, narrowing the broader category into the specific area of wastewater-plant repair and maintenance work. As a leaf code, 45259100 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 wastewater-plant repair and maintenance work. Contracting authorities across the EU use 45259100 in TED notices and national procurement portals to signal that a tender relates to wastewater-plant repair and maintenance work.