The hydrogen sector is in need of a comprehensive quality standard that can effectively address the diverse needs of stakeholders along the entire value chain. One of the critical issues faced by the industry is the absence of a single hydrogen quality specification that can accommodate the requirements of various players, from production facilities to industrial users utilizing hydrogen as a feedstock in their processes. Moreover, repurposed natural gas pipelines pose a unique challenge in terms of ensuring the compatibility and safety of hydrogen transportation. To tackle these challenges, the European Association for the Streamlining of Energy Exchange – Gas (EASEE-gas) embarked on drafting a Common Business Practice (CBP) to streamline hydrogen quality specifications. This initiative aims to establish a harmonized standard that can be applied across systems initially designed for natural gas transmission but repurposed for hydrogen transport. By focusing on safety, reliability, and compatibility, the CBP seeks to pave the way for the seamless integration of hydrogen within the existing infrastructure, fostering the growth of the hydrogen economy.