A number of shipping, refining, fuel supply and standards organisations have collaborated in order to produce Joint Industry Guidance on the supply and use of 0.50% sulphur marine fuel released on 20 August 2019.
In October 2016, the International Maritime Organization (IMO) established a global limit for sulphur in fuel oil used on board ships of 0.50% m/m to apply from 1 January 2020. The implementation of this regulation is expected to have significant implications throughout the marine fuel...
https://safety4sea.com/joint-industry-guidance-launched-for-the-supply-and-use-of-0-50-sulphur-fuel/