The article delves into the importance of robust standards for hydrogen fuel systems, focusing on the differences between the critical standards of HGV 3.1 and ISO 19887. While HGV 3.1 sets validation testing benchmarks for various components, ISO 19887 imposes stricter requirements globally, challenging engineers to adopt innovative solutions. Design engineers must understand the nuances of each standard to meet diverse market requirements effectively. Parker, drawing from extensive experience in CNG systems, emphasizes a pragmatic approach for hydrogen fuel system development. By exceeding standards, developing advanced materials, and collaborating with customers, Parker ensures reliability and addresses unique challenges posed by hydrogen, such as leakage risks and material compatibility. The article highlights Parker's strategy of balancing innovation with commercial viability to meet the challenges of hydrogen adoption, including infrastructure hurdles and risk reduction concerns. By staying ahead of evolving hydrogen standards, Parker aims to be a trusted partner for hydrogen system designers worldwide, offering solutions that inspire confidence and drive adoption. In conclusion, the article emphasizes the importance of understanding standards, embracing pragmatism, and delivering value in the emerging hydrogen fuel systems space. With Parker's commitment to innovation and quality, the future of the hydrogen economy looks promising, with reliable solutions ready to meet current and future demands.