TÜV SÜD, an international testing, inspection, and certification company, is actively supporting the development of hydrogen and fuel cell technologies. Under the theme 'We build the hydrogen future,' TÜV SÜD will participate in the Hydrogen Technology Expo Europe in Hamburg to showcase its wide range of testing and certification services for the sector. The focus will be on H2-Readiness certifications for materials, components, systems, and certification marks for fuel cells and electrolysis systems. Moreover, the company will present comprehensive training and qualification products addressing safe hydrogen handling. The article emphasizes the crucial role of green hydrogen in reducing CO2 emissions, highlighting the challenges faced by manufacturers and operators in ensuring the reliability and safety of components and systems during and after the conversion process to hydrogen. TÜV SÜD offers various testing services, including safety, performance, environmental, and EMC testing for hydrogen technologies, ensuring compliance with industry standards. TÜV SÜD's H2-Readiness certification process confirms the suitability of materials and components for hydrogen use in the future, facilitating the transition to renewable energies. The company also provides voluntary certification programs for fuel cell systems and H2 system components, demonstrating the high quality and safety of products. In addition to certification services, TÜV SÜD Academy offers training courses covering topics such as material compatibility, power-to-gas systems, safety of hydrogen drives for rail vehicles, and more. These educational opportunities aim to enhance knowledge and skills in the field of hydrogen technology and fuel cells. Overall, TÜV SÜD's initiatives in testing, certification, and training underscore its commitment to advancing the hydrogen industry and promoting the adoption of environmentally friendly technologies.