Loss Prevention 08 May, 2024 Overview of ULSFO off-specs Dmitry Kisil Senior Loss Prevention Officer In December 2022 the 79th session of the IMO’s Marine Environment Protection Committee (MEPC 79) adopted Resolution MEPC.361(79) establishing a Mediterranean Sea Emission Control Area for sulphur oxides and particulate matter. The regulation has taken effect on the 1 st of May this year.  Download PDF From now on, all combustion equipment – main and auxiliary engines, oil fired boilers and inert gas generators - onboard of vessels, that are subject to Regulation 14 of MARPOL Annex VI and operating in Mediterranean SECA, must consume fuel oil with sulphur content of 0.10% S m/m or less, unless other approved means of SOx emission control are in place. Until now, most of Ultra Low Sulphur Fuel Oil (ULSFO) has been bunkered in the Baltic and the North Sea SECAs, with Rotterdam being a global leading ULSFO supply port. Previously, we already examined the quality of Ultra Low Sulphur Fuel Oil in European ports. In November 2023, we reported: Over the last six months ULSFO delivered in Rotterdam was failing on technical parameters such as Viscosity and Pour Point in 7% of samples. 3% of samples failed on Sulphur content – 1% of samples were tested marginally exceeding statutory 0.10% mark, while further 2% were found above 0.11%. RMG380 was particularly problematic. Other European ports where customers faced ULSFO quality issues were Swedish Gothenburg, Malmo and Stockholm, and Lubeck, Antwerp and Klaipeda. ULSFO supplied in Zeebrugge was always on spec on all parameters. Since November, the ULSFO quality statistics have been as follows: Rotterdam: 10.6% of samples fail on Pour Point and, to lesser extent, on Viscosity. Antwerp: 8.7% of samples fail on Pour Point and Viscosity, and in 2.2% of cases on Sulphur content. Lubeck, the fifth port by bunkered ULSFO volumes: 21.3% of samples taken there fail on Pour Point. Gothenburg: 6.4% of samples fail on Sulphur content a