Double-hulled tanker Double-hulled tanker A double-hulled tanker refers to an oil tanker which has a double hull. They reduce the likelihood of leaks occurring than in single-hulled tankers, and their ability to prevent or reduce oil spills led to double hulls being standardized for oil tankers and other types of ships including by the International Convention for the Prevention of Pollution from Ships or MARPOL Convention. After the Exxon Valdez oil spill disaster in Alaska in 1989, the US Government required all new oil tankers built for use between US ports to be equipped with a full double hull. A number of
History of the oil tanker in 1967 caused a public awareness about the environmental dangers of oil tankers. Oil companies united in 1970 in the Oil Companies International Marine Forum to become involved in the following issuing of rules such as MARPOL 73. In 1968 also the International Tanker Owners Pollution Federation was founded to indemnify the victims. For tanker owners, the Six-Day War of 1967 was of greater importance. The Suez Canal closed until 1975 and freight rates skyrocketed because of the shortage of tonnage now ships had to pass the Cape of Good Hope. Even larger tankers were now built, as the limitations