31122100 - Fuel cells

CPV code 31122100 in the EU Common Procurement Vocabulary refers to Fuel cells. It sits at level 5 of the CPV hierarchy as a subcategory within the 31 division. This code is nested directly under 31122000, narrowing the broader category into the specific area of fuel cells. As a leaf code, 31122100 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 fuel cells. Contracting authorities across the EU use 31122100 in TED notices and national procurement portals to signal that a tender relates to fuel cells.