45231221 - Gas supply mains construction work

CPV code 45231221 in the EU Common Procurement Vocabulary refers to Gas supply mains construction work. It sits at level 6 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45231200, narrowing the broader category into the specific area of gas supply mains construction work. As a leaf code, 45231221 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 gas supply mains construction work. Contracting authorities across the EU use 45231221 in TED notices and national procurement portals to signal that a tender relates to gas supply mains construction work.