Class society DNV has granted an approval in principle (AiP) to Alfa Laval for their Gas Combustion Unit (GCU) technology tailored for hydrogen boil-off gas management in liquefied hydrogen carriers (LH2 carriers). This approval underlines the significance of GCU technology in addressing the challenges posed by hydrogen transportation. The GCU plays a vital role in maintaining tank pressure and temperature to safely combust hydrogen boil-off gas from the storage tanks of LH2 carriers. Alfa Laval's GCU design has been recognized for its technical feasibility and safety mechanisms, ensuring the safe handling of hydrogen BOG. The company sees this AiP as a major achievement, setting the stage for the development of a prototype GCU that will undergo rigorous testing and type-approval processes to establish a secure and efficient system for managing boil-off gas on liquid hydrogen carriers. Hydrogen, being a light and highly flammable gas with unique properties including a low boiling point of -253°C, presents challenges that require specialized safety considerations in GCU technology. Alfa Laval emphasizes the need for adjustments in GCU design to meet the safety and efficiency standards crucial for the secure transportation of hydrogen. The approval from DNV is rooted in the success of LNG GCU technology, highlighting the importance of adapting existing technologies to the distinct requirements of hydrogen transport. Alfa Laval stresses the industry's obligation to ensure the safety and reliability of enabling technologies to foster confidence in the transport of hydrogen at sea.