Fuel Consumption Reporting Requirements per SEEMP Part II – MEPC.395(82), Section 7

Amendments to MARPOL Annex VI Appendix IX will enter into force on 1 August 2025. These amendments mandate the collection and reporting of additional fuel oil consumption data on an annual basis. The new requirements include detailed reporting of fuel consumption by consumer type and fuel type (such as main engines and auxiliary engines) while underway, as well as fuel consumption while not underway, also categorized by consumer and fuel type.

For shipowners, operators and managers this means that they should retrofit their vessels delivered before August 1, 2025, with flowmeters to meet the increased accuracy requirements for fuel consumption data. In addition, the Ship Energy Efficiency Management Plans (SEEMPs) must subsequently be revised and verified accordingly by January 1, 2026.
 
Accurate fuel consumption monitoring can be achieved through the use of advanced onboard systems and sensors, such as Aquametro’s flowmeters and monitoring & performance systems. These technologies enable precise tracking of fuel usage and generate valuable data that can be analyzed to identify operational inefficiencies and optimize vessel performance. By highlighting areas of high fuel consumption—such as suboptimal engine performance or excessive speed—operators can implement corrective measures to enhance fuel efficiency and lower emissions. Additionally, fuel consumption data plays a key role in assessing the effectiveness of emission-reducing technologies, such as wind-assisted propulsion systems.
 
Precise monitoring of fuel consumption on vessels is also crucial for minimizing costs and lowering emissions, particularly under the EU Emissions Trading System (ETS). By continuously tracking fuel usage, ship operators can pinpoint opportunities to enhance efficiency, resulting in both financial savings and reduced environmental impact.
 
Backed by over 75 years of expertise in fuel oil metering, Aquametro is a trusted global leader with more than 2.5 million CONTOIL® flowmeters successfully installed worldwide. Renowned for their outstanding accuracy and cost-effectiveness, CONTOIL® flowmeters deliver reliable fuel consumption data in both mass and volume. Engineered with minimal moving parts and a compact, durable design, they are built to perform flawlessly even in the toughest marine environments, making them the smart choice for modern, efficiency-driven shipping operations.
In addition to the CONTOIL® and DOMINO® families of flowmeters, we also provide Coriolis Mass flowmeters. Featuring a durable design with no moving parts, Aquametro's Coriolis flowmeters ensure longevity and exceptional measurement accuracy.
Aquametro flowmeters, proven for many decades, guarantee highest accuracy at harsh engine room conditions with high vibration. Furthermore, our flowmeters are type approved by DNV.
 
To ensure compliance with IMO regulations, stakeholders must act promptly to implement the necessary technical upgrades and documentation updates ahead of the approaching deadlines.

Learn more about
CONTOIL® here 
DOMINO® here 
Coriolis here 

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