The article discusses the growing interest in using methanol as a marine fuel, highlighting its advantages over conventional fuels like residual fuel oils and LNG in terms of fuel quality issues. It mentions the absence of International Organization for Standardization (ISO) standards for methanol as a marine fuel and the ongoing development of ISO/DIS 6583 Specification for this purpose. Until these standards are finalized, compliance with minimum statutory requirements like sulfur content is recommended. The article emphasizes the importance of considering agreements between fuel suppliers and purchasers, taking into account specifications from the International Methanol Producers and Consumers Association (IMPCA) and equipment manufacturers. By focusing on methanol, the article also indirectly touches on other alternative marine fuels like ammonia and hydrogen, highlighting the evolving landscape of marine fuel choices amidst the global energy transition.