With the participation of BIMCO, the Marine Technology Forum (MTF) has published new guidelines to help shipping companies enhance Safety Management Systems (SMS) for ships equipped with wind-assisted propulsion systems (WAPS) such as rotor sails. These guidelines come at a time of increased focus on energy security and cost volatility in the wake of the Iran War, which has intensified the global search for viable alternatives and complements to conventional marine fuels.
Rising energy costs and uncertainty in fuel supply chains have accelerated industry interest in renewable and energy-efficient solutions. Against this background, wind-assisted propulsion is increasingly viewed as a practical and scalable option to reduce fuel consumption and emissions. However, the adoption of such technologies introduces new operational and safety considerations that must be carefully managed.
The MTF Guidelines provide a structured framework to support the safe integration of WAPS into ship operations. Although wind propulsion is not new, modern systems – including rotor sails, suction sails, and wing sails – require a different approach to safety management. The guidelines therefore focus on helping companies identify and address gaps in current procedures, ensuring that both new, modified and upgraded vessels can operate safely and efficiently.
This guide has been developed collaboratively by flag States and classification societies with expertise in WAPS techniques and the International Code of Safety Management (ISM), and reflects current industry practice. It places particular emphasis on risk assessment and highlights key operational implications, including impacts on manoeuvrability, visibility, maintainability and emergency preparedness.
Importantly, the guidelines recognize that the industry is still at an early stage of adopting wind-powered technologies. Companies are encouraged to incorporate continuous learning into their SMS by capturing WAPS non-conformances, near misses and hazardous events. Over time, this will support more robust procedures and improved operational performance. The guidance also highlights the need for targeted, role-specific training to ensure crew are fully aware of system functions, limitations and emergency procedures, particularly in the absence of dedicated certification frameworks.
Source: Bimco, https://www.bimco.org/news-insights/bimco-news/2026/05/28-wasp-sms-guidelines/
