The International Maritime Organization’s 2020 Global Sulphur Limit Regulation, which is a significant challenge for the shipping industry, came into effect as of 1 January 2020. It limits the sulphur in fuel oil used on board ships operating outside designated emission control areas to O.5O% m/m (mass by mass), from 3.5O% m/m. Monitoring and enforcement of the new limit is the responsibility of Governments and national authorities of member States that are Parties to MARPOL Annex VI, reports...
https://mfame.guru/monitoring-the-enforcement-of-imos-2020-sulphur-regulations/