Fuel Consumption Reporting and Efficiency Monitoring: Shipowners of vessels above 5000GT must report the fuel consumption of each vessel to the IMO via their respective flag states, a process facilitated by the Data Collection System (DCS). Verified by Recognized Organizations (ROs) such as classification societies (e.g., DNV, ABS, LR), the DCS statement includes key metrics like the Annual Efficiency Ratio (AER), offering valuable insights into the vessel’s carbon efficiency and compliance with environmental regulations.
[Updated in Oct 2025]