Low Sulphur onboard ships

Recently there has been lot of talk on the use of low sulphur on board ships. With the Annex VI of MARPOL in force and lot of other flag states and group of nations competing with each other to take up the standards of fuel usage on board ships (both in sea and port), it is difficult to track these developments. We have tried to summarize it in marinewiki:

http://navgathi.info/index.php/Allowable_marine_fuel_sulphur