90731600 - Methane monitoring

CPV code 90731600 in the EU Common Procurement Vocabulary refers to Methane monitoring. It sits at level 5 of the CPV hierarchy as a subcategory within the 90 division. This code is nested directly under 90731000, narrowing the broader category into the specific area of methane monitoring. As a leaf code, 90731600 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 methane monitoring. Contracting authorities across the EU use 90731600 in TED notices and national procurement portals to signal that a tender relates to methane monitoring.