HomeStatus Lists for Treaties for Which the United States is Depositary ...Pollution Status Lists hide Pollution Status Lists 1 items Clear All Filters View collection by: Select a Year 1972 Select a Month January February March April May June July August September October November December Select a Release Type Depositary – Treaty Affairs Apply Filters Depositary – Treaty Affairs Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter, done at London, Mexico City, Moscow and Washington December 29, 1972