GCMD Study Calls for Tighter Marine Biofuel Verification

Standard supplier declarations on bunker delivery notes are insufficient to guarantee that ship operators receive the full proportion of renewable content purchased in biofuel mixtures, according to a report from the Global Centre for Maritime Decarbonisation.

The Singapore-based organisation published its findings in a study examining quantity assurance across marine biofuel supply chains. While testing in the trials revealed no actual instances of under-blending, the organisation cautioned that stricter monitoring measures remain necessary across the sector.

Accurate verification of renewable components, typically consisting of hydrotreated vegetable oil or fatty acid methyl esters, is vital for vessel operators. These proportions directly govern compliance under regional environmental mechanisms, including FuelEU Maritime and the European Union Emissions Trading System.