45221245 - Under-river tunnel construction work

CPV code 45221245 in the EU Common Procurement Vocabulary refers to Under-river tunnel construction work. 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 under-river tunnel construction work. As a leaf code, 45221245 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 under-river tunnel construction work. Contracting authorities across the EU use 45221245 in TED notices and national procurement portals to signal that a tender relates to under-river tunnel construction work.