DNV has recently released updates to its rules for the classification of ships and offshore structures, aiming to support the development and deployment of decarbonization technologies in the maritime industry. These updates include new in-operation class notations that clarify the responsibilities of class customers, covering both design and operational requirements. The classification framework introduced by DNV includes Fleet in service notations, enabling owners to showcase their efficiency and safety measures in the market. The new rules also highlight DNV's expertise in maritime decarbonization through the introduction of Gas fuelled hydrogen and OCCS notations. Gas fuelled hydrogen notation outlines requirements for hydrogen fuel systems on ships, offering owners a practical pathway for adopting hydrogen fuel in newbuildings. On the other hand, OCCS notation focuses on carbon capture and storage systems onboard vessels to reduce emissions and enhance sustainability. Apart from decarbonization, the updates include various notations such as BOG for boil-off gas, live fish transport vessels, stability pontoons, hatchcoverless vessels, floating spaceports, and diving systems in alignment with IMO standards. These additions cater to different aspects of the maritime industry, from enhancing safety and stability to facilitating the transportation of specific goods and fostering innovation. The new rules are set to come into effect on January 1st, 2025, providing stakeholders time to adapt to the changes and align with the latest classification standards in the industry. Overall, DNV's updates aim to drive innovation, safety, and sustainability in the maritime sector while supporting the transition towards decarbonization technologies and regulatory compliance.