The Convention for the Prevention of Marine Pollution by Dumping from Ships and Aircraft also called the Oslo Convention was an international agreement designed to control the dumping of harmful substances from ships and aircraft into the sea. It was adopted on 15 February 1972 in Oslo, Norway and came into force on 7 April 1974. Original signatories were Denmark, France, Iceland, Norway, Portugal, Spain, and Sweden. Later members included the United Kingdom (1975), the Netherlands (1975), Germany (1977), Finland (1979), Ireland (1982), and Belgium (1985).