see Montreal Protocol on Substances That Deplete the Ozone Layer

Protocol of 1978 Relating to the International Convention for the
Prevention of Pollution From Ships, 1973 (MARPOL)

note - abbreviated as Ship Pollution

opened for signature - 17 February 1978

entered into force - 2 October 1983

objective - to preserve the marine environment through the complete elimination of pollution by oil and other harmful substances and the minimization of accidental discharge of such substances

parties - (115) Algeria, Antigua and Barbuda, Argentina, Australia,
Austria, The Bahamas, Barbados, Belarus, Belgium, Belize, Benin,
Bolivia, Brazil, Brunei, Bulgaria, Burma, Cambodia, Canada, Chile,
China, Colombia, Comoros, Cote d'Ivoire, Croatia, Cuba, Cyprus, Czech
Republic, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador,
Egypt, Equatorial Guinea, Estonia, Finland, France, Gabon, The Gambia,
Georgia, Germany, Ghana, Greece, Guatemala, Guyana, Hong Kong
(associate member), Hungary, Iceland, India, Indonesia, Ireland,
Israel, Italy, Jamaica, Japan, Kazakhstan, Kenya, North Korea, South
Korea, Latvia, Lebanon, Liberia, Lithuania, Luxembourg, Malaysia,
Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Monaco,
Morocco, Netherlands, NZ, Nicaragua, Norway, Oman, Pakistan, Panama,
Papua New Guinea, Peru, Poland, Portugal, Romania, Russia, Saint Kitts
and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Sao Tome and
Principe, Senegal, Seychelles, Singapore, Slovakia, Slovenia, South
Africa, Spain, Sri Lanka, Suriname, Sweden, Switzerland, Syria, Togo,
Tonga, Trinidad and Tobago, Tunisia, Turkey, Tuvalu, Ukraine, UK, US,
Uruguay, Vanuatu, Venezuela, Vietnam, Yugoslavia

Protocol on Environmental Protection to the Antarctic Treaty

note - abbreviated as Antarctic-Environmental Protocol

opened for signature - 4 October 1991