The International Bunker Industry Association (IBIA) has published a comprehensive FAQ document on using ammonia as a marine fuel, aiming to guide industry stakeholders through the complexities of alternative marine fuels. The document covers essential aspects such as ammonia production, distribution, bunkering processes, infrastructure considerations, supply chain challenges, and regulatory developments. Ammonia production, mainly through the Haber-Bosch process, is explored, along with emerging electrolysis methods for lower-emission ammonia. Key considerations for establishing ammonia bunkering infrastructure include safety, handling, stakeholder engagement, risk management, and insurance collaborations. Challenges in the ammonia supply chain logistics include competition from other industries, high initial costs, and the need for regulatory developments to ensure safe practices. Regulatory progress at the IMO includes interim guidelines for safe ammonia use as a marine fuel, with ongoing revisions expected. Despite challenges, the growth of low-emission ammonia production projects may lead to cost reductions, similar to the evolution of the LNG market. The industry anticipates continued developments in ammonia marine fuel technologies and regulations.