45221240 - Construction work for tunnels

CPV code 45221240 in the EU Common Procurement Vocabulary refers to Construction work for tunnels. 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 construction work for tunnels. As a leaf code, 45221240 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 construction work for tunnels. Contracting authorities across the EU use 45221240 in TED notices and national procurement portals to signal that a tender relates to construction work for tunnels.