an international treaty prohibiting the dumping of plastic in the oceans.

Marine Pollution Act - An international convention concerning the prevention of pollution from ships. MARPOL is administered by the International Maritime Organization.

International Convention for Prevention of Maritime Pollution from Ships. IMO environmental convention.

International convention for the prevention of pollution from ships.

A set of international conventions concerned with the prevention of pollution from ships. The IMO is responsible for the administration of MARPOL.