Bureau Veritas Marine & Offshore (BV) has joined the NavHyS project, a European initiative dedicated to promoting the use of liquid hydrogen in maritime applications. The project, funded by the Clean Hydrogen Partnership, involves a consortium of 14 partners united in their mission to decarbonize the shipping industry. BV has actively contributed to the development of the project proposal and consortium structure, leveraging its expertise in safety, rule development, and classification to drive innovation in hydrogen-fueled vessels. NavHyS specifically targets the utilization of below-deck Type C LH₂ tanks for marine fuel in service operation vessels, a technically challenging aspect of hydrogen implementation at sea. BV's involvement includes delivering three Approvals in Principle through Design Assessment activities, focusing on the liquid hydrogen storage system, fuel system, and their incorporation into an SOV. Additionally, BV will lead safety research and rule development pertaining to liquid hydrogen in maritime settings. The project will explore shore-based hydrogen supply solutions, assess the lifecycle of hydrogen-fueled vessels, and strive to achieve Technology Readiness Levels 8-9 by 2030, facilitating practical deployment by 2035-2040. By merging expertise from the maritime and space sectors, NavHyS aims to devise a groundbreaking concept for SOVs servicing offshore wind farms. The proposed design features 200-300 m³ storage tanks capable of carrying significant liquid hydrogen volumes, ensuring extended autonomous operations. ArianeGroup coordinates NavHyS, uniting prominent organizations and LH₂ specialists like ENGIE, Gas and Heat, INERIS, RISE, and Vard. The project envisions revolutionizing the maritime industry by integrating cutting-edge cryogenic storage technology, fostering sustainability in shipping operations.