Marpol Loopholes Making Compliance Optional?

Indonesia’s plans to ignore the sulphur cap for its national-flag vessels on domestic routes, though ratified with Annex VI, the biggest difficulty regulators will face.
The sulphur cap applies to ships registered with states that have ratified Marpol’s Annex VI wherever they sail.
There is no provision to check how a Member State complies with IMO conventions, including Marpol in the IMO Convention, but auditors can.
Ships registered in the countries that have not ratified Annex VI can...