45221250 - Underground work other than tunnels, shafts and subways

CPV code 45221250 in the EU Common Procurement Vocabulary refers to Underground work other than tunnels, shafts and subways. It sits at level 6 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45221200, narrowing the broader category into the specific area of underground work other than tunnels, shafts and subways. As a leaf code, 45221250 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 underground work other than tunnels, shafts and subways. Contracting authorities across the EU use 45221250 in TED notices and national procurement portals to signal that a tender relates to underground work other than tunnels, shafts and subways.