NORTHERN HEMISPHERE: Starting from 1 January 2015, vessels entering the North American and North European emission control areas (ECAs) will have to comply with the revised permitted limit of sulphur in marine fuel.

Only a few weeks away, edgy marine insurers have expressed concerns over potential technical issues regarding the regulations.

Oslo-headquartered Skuld has reminded that existing engine rooms and tanks were originally designed for heavy fuel oil (HFO), and therefore extensive preparation beforehand will be needed to make sure the vessels are able to adjust to various types of ultra-low sulphur fuel (ULSF). It also warned that cross-contamination of fuels can easily happen because the two fuels used will likely have differing viscosity and temperatures.

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"Members are recommended that they take the extra time to review their present arrangements to double-check and ensure that vessels and crews are ready for January," Skuld advised.

The regulations will limit sulphur content in marine fuel used in ECAs to 0.1% by weight beginning next year, which has prompted many companies to switch to alternatives, such as low-sulphur fuel oil or marine gas oil (MGO).

"Meeting the challenge of 1 January 2015 requires careful advanced planning that ensures vessels are ready, crews are well-informed and trained in new procedures, and contracts are reviewed to ensure that risks and responsibilities are apportioned properly," Skuld added.

Earlier the firm had also warned that ill-prepared tanks for new low-sulphur fuel could cause sudden loss of propulsion in some ships.