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

Entered into force August 30, 1975.

In accordance with Article XVII, the Convention shall be subject to ratification; instruments of ratification shall be deposited with the Governments of Mexico, the Russian Federation, the United Kingdom and the United States. In accordance with Article XVIII, the Convention shall be open for accession by any State after December 31, 1973; instruments of accession shall be deposited with the Governments of Mexico, the Russian Federation, the United Kingdom and the United States. In accordance with Article XIX, the Convention entered into force on the thirtieth day following the date of deposit of the fifteenth instrument of ratification or accession. For each Contracting Party ratifying or acceding to the Convention after the deposit of the fifteenth instrument of ratification or accession, the Convention shall enter into force on the thirtieth day after the deposit by such Party of its instrument of ratification or accession.