Mapping safety risks for hydrogen-fuelled ships. Study investigating the safety of hydrogen as fuel on ships

This report analyses hydrogen’s main characteristics to frame which safety hazards, system threats and risks to be considered and mitigated when using hydrogen as ship fuel. Natural gas – for which the IGF Code has put internationally recognised safety barriers in place to ensure its safe use – is used as a benchmark. Established principles for mitigation and control, and lessons learned from hydrogen accidents are briefly reviewed. Hydrogen modelling techniques and tools are validated. Statutory regulations and classification rules, standards, and best practices relevant to hydrogen-fuelled ships are reviewed to identify hazards and risks considered and mitigated in existing rules and regulations.