The International Maritime Organization (IMO) is expected to play a crucial role in kick-starting the green hydrogen and ammonia production sectors at MEPC83. Murray Douglas, the head of Wood Mackenzie's hydrogen research, acknowledges the ambitious targets set by IMO in the past and highlights the significance of MEPC83 in supporting the viability of these sustainable fuels. However, the road ahead is not without challenges, as political obstacles loom large over the potential progress. While the maritime industry holds promise as a significant uptake area for zero-carbon fuels like hydrogen, Douglas emphasizes that there are numerous other pathways for the adoption of these fuels beyond the marine sector. In case MEPC83 falls short of expectations, Douglas suggests that there are alternative routes to ensure the viability and growth of the green hydrogen and ammonia markets. This analysis underscores the critical role of regulatory decisions and international cooperation in shaping the future of sustainable fuel industries.