TÜV SÜD supports you addressing the WLTP and RDE car emissions test compliance challenges TÜV SÜD is one of the world’s leading vehicle testing and certification providers with accredited state-of-the-art testing laboratories near all major car producing hubs. Each testing facility is equipped to conduct all essential emissions and fuel consumption tests required for passenger and commercial vehicles and motorcycles in accordance with national regulations, international standards and industry requirements, including RDE and WLTP regulations.