The Expert Team on Transition to Modern Measurement (ET-TMM), supports Members in adopting modern measurement methods by developing guidance, training modules, curricula, and outreach materials. The team organizes workshops, webinars, and communities of practice, promotes knowledge sharing, monitors training needs, updates relevant WMO guidance (including WMO-No. 8), collaborates with RTCs, ETR, and other expert teams, and encourages sustainable measurement infrastructure and competency development across Members.