45221122 - Railway viaduct construction work

CPV code 45221122 in the EU Common Procurement Vocabulary refers to Railway viaduct construction work. It sits at level 6 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45221100, narrowing the broader category into the specific area of railway viaduct construction work. As a leaf code, 45221122 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 railway viaduct construction work. Contracting authorities across the EU use 45221122 in TED notices and national procurement portals to signal that a tender relates to railway viaduct construction work.