Bureau Veritas, a leading classification society, has recently unveiled an updated edition of its NR 678 Rule Note tailored for hydrogen-fuelled ships. This revision comes on the heels of a year of project experience involving hydrogen as a marine fuel, with the aim of incorporating key learnings and best practices. The new rule note includes several important updates to enhance safety and operational protocols for ships powered by hydrogen. One of the notable enhancements is the provision of clearer requirements for risk assessment follow-up actions. This is crucial in ensuring that potential risks are identified and mitigated effectively throughout the operational lifecycle of hydrogen-fuelled vessels. Additionally, the rule note now offers improved guidance on gas dispersion analysis, which is vital for managing the safe dispersion of hydrogen in various operational scenarios. Moreover, the updated rule note outlines more detailed procedures for testing and certifying components utilized in hydrogen systems. Given the unique challenges presented by hydrogen as a fuel source, such as its high flammability and specific storage requirements, these procedures are instrumental in verifying the safety and functionality of critical system components. As hydrogen is expected to significantly contribute to the decarbonisation of the shipping industry, the enhancements introduced by Bureau Veritas aim to support shipowners, designers, and builders in navigating the complexities associated with this transition. By providing clearer guidelines and thorough testing procedures, the classification society seeks to instill confidence in stakeholders embracing hydrogen as a sustainable marine fuel. Bureau Veritas has affirmed its commitment to further refining its rules to stay abreast of innovation and facilitate the industry's shift towards low-carbon shipping. This proactive approach reflects the organization's dedication to promoting safety, sustainability, and technological advancement within the maritime sector. The updated NR 678 Rule Note is readily accessible to industry professionals seeking to leverage the latest standards for hydrogen-fuelled ships as they embark on the journey towards a greener maritime future.