To support the pursuit of IMO’s decarbonization targets, DNV has joined forces with 22 companies by entering into a Memorandum of Understanding on a joint cross-industry study of common issues concerning ammonia as an alternative marine fuel. Partners include representatives from the fields of energy, mining, power utility, chemical, terminal, shipping, shipbuilding, manufacture, bunkering, and classification. The 23 founding signatories of this “joint study” framework include ABS, Anglo American, Class NK, DNV, Equinor, FMG, Genco, JERA, K-Line, MAN Energy Solutions, Mitsui E&S Machinery, Nihon Shipyard, NS United, Pavilion Energy, Total Energies, Trafigura, UBE Industries, Uyeno Transtech, Uniper SE, Vale, Vopak Terminal Singapore, ITOCHU ENEX and ITOCHU. In line with the agreed procedure, common issues includingSafety assessment of NH3 fuel ship under guidelineSafety assessment of NH3 bunkeringNH3 fuel specificationNET CO2 emission at NH3 production will be explored as part of the joint study framework.Moreover, the framework may ask some of NH3 producers, relevant international organizations, port authorities/regulators in potential bunkering countries to share their opinion, view, expertise, and experience. The IMO’s GHG strategy sets targets to reduce CO2 emissions per transport work, as an average across international shipping, by at least 40% by 2030 (compared to 2008 levels); to reduce CO2 emissions by 50% by 2050; and to phase them out entirely during this century. With an eye to achieving these goals, the early adoption of ammonia as a suitable zero emission, alternative marine fuel is an approach gaining increasing industry interest.