Aims to share information, lessons learned and best practices with a focus on hydrogen safety, as well as the harmonization of codes and standards developed by relevant industry code and standards development organizations.

By coordinating at the government level, RD&D programs can be developed to address challenges, including regulatory barriers that may be identified through RCSS WG activities.

Examples of past activities include round robin testing and protocol dissemination for high pressure hydrogen storage tanks and development of templates to share infrastructure reliability and safety data across countries.

Foster dissemination of critical information to relevant stakeholders, particularly related to the safe production, distribution, storage and utilization of hydrogen.

Share incident databases and training resources for code officials and first responders among the countries to avoid duplication and leverage knowledge and resources.  (e.g. www.H2tools.org and HIAD 2.0)

In May 2022, the Steering Committee approved the launch of two RCSSWG Task Forces, with  task forces on critical topics:

• Maritime Regulations, Codes and Standards (RCS) Gaps and Risk Analysis - Areas of focus include maritime vessels operated by hydrogen, marine transport of hydrogen, and onshore/offshore bunkering; and

• Bulk Storage Risk, Gaps and Deployment Barriers - Perform an RCS gaps assessment and identify critical areas for R&D and for RCS changes to enable bulk storage.

In November 2024, the Steering Committee approved the launch of an additional task forces addressing Permitting.

In November 2025, the Steering Committee approved a new structure whereby Working Groups become Thematic Subdivisions, hosting Task Forces where work development is being made. It resulted in transferring Certification and Trade Task Forces under the umbrella of this Working Group.