DNV has introduced the H2MET joint industry project (JIP) to advance metrology for 100% hydrogen flow applications. The project, led by DNV's Technology Centre in Groningen, aims to improve the accuracy and reliability of hydrogen flow measurement, ensuring a trusted foundation for hydrogen trading and supporting the role of hydrogen in a more efficient energy transition. The H2MET JIP addresses the critical need for metrology standards in the hydrogen sector, enabling safe and efficient development of hydrogen trading to support global decarbonization efforts. The project provides a platform for industry collaboration, knowledge sharing, and establishing operational limits for hydrogen flow metering. By offering a highly accurate reference system, the initiative assesses the performance of various hydrogen metering technologies, supporting the European hydrogen flow traceability chain and future hydrogen trading. DNV's expertise in flow metrology, combined with advanced testing facilities in Groningen, positions the project at the forefront of hydrogen metrology innovation. The H2MET project is crucial for hydrogen operators and technology providers, aiding in the development of reliable metering solutions and marking a significant step in DNV's commitment to global decarbonization. Results of the project will be shared with JIP members in Q1 2026, with ongoing opportunities for industry participants to join the collaboration.