1.Current SOx regulation

The revised Annex VI to MARPOL entered into force on 1 July 2010
The sulphur content of any fuel oil used on board ships shall not exceed the following limits:
a. 4.50% m/m prior to 1 January 2012;
b. 3.50% m/m on and after 1 January 2012; and
c. 0.50% m/m on and after 1 January 2020.

Requirements within Emission Control Areas
While ships are operating within an Emission Control Area, the sulphur content of fuel oil used on board ships shall not exceed the following limits:
a. 1.50% m/m prior to 1 July 2010;
b. 1.00% m/m on and after 1 July 2010; and
c. 0.10% m/m on and after 1 January 2015.