QI plays an essential role in supporting green hydrogen development, alongside the provision of the necessary technical foundations. It aids in mitigating safety, financial and reputational risks, and facilitates the realisation of positive sustainability outcomes from investments. QI is often not sufficiently factored into hydrogen strategies, largely due to a lack of knowledge of quality infrastructure as well as its associated benefits for hydrogen stakeholders. To address this observation, as part of the IRENA project entitled “Quality infrastructure for green hydrogen: technical standards and quality control for the production and trade of renewable hydrogen”, implemented with the National Metrology Institute of Germany (PTB) and supported by Germany’s Federal Ministry of Economic Cooperation and Development (BMZ), this publication aims to explore the importance of crucial QI services as a key instrument for the successful global production and use of green hydrogen. An associated presentation, featuring a Tunisia case study demonstrating the application of the proposed roadmap steps, as well as a database, providing a non-exhaustive overview on available and upcoming standards/QI services for green hydrogen, are complements to this publication and available on this webpage.