The Ministry for the Environment and Natural Resources has published an amended draft to the current regulations on the Sulphur content of liquid fuels. RÚV reports that if these amendments are adopted, the use of heavy fuel oil (HFO) would be prohibited within Icelandic territorial waters starting at the beginning of next year.
Heavy Fuel Oil is “the generic term [that] describes fuels used to generate motion and/or fuels to generate heat that have a particularly high viscosity and density.” HFOs “are mainly used as marine fuel, and HFO is the most widely used marine fuel at this time; virtually all medium and low-speed marine diesel engines are designed for heavy fuel oil.”
About 22% of the marine fuel sold in Iceland in 2016 was HFO; it is used by some Icelandic fishing vessels. There has been a great deal of discussion regarding the pollution from cruise ships, which run on HFO, and according to current Icelandic law, the use of such fuel is prohibited when a cruise ship is docked at an Icelandic port.
The current law, which went into effect in 2015, allows for the Sulphur content in marine fuel used within Icelandic territorial waters to be up to 3.5%. If the amendments go into effect, this percentage would go down to .1%. This is lower than the updated Sulphur pollution regulations that are outlined in the revised International Convention for the Prevention of Pollution from Ships agreement, or MARPOL Annex VI. Per the revised regulations, which go into effect on January 1, 2020, cosignatories to the agreement, including Iceland, will not be allowed to use marine fuel that has a Sulphur content that is higher than .5%.
If Iceland puts a stricter Sulphur content limit in place, ships using a higher percentage fuel would need to employ approved methods of reducing their Sulphur Dioxide emissions while within Icelandic territorial waters. A .1% Sulphur limit would, however, be in accordance with restrictions already in place in the so-called ECA areas in the Baltic and North Seas.