The data describes the number of defeat device cases under Title II of the United States Clean Air Act as of February 2016, ranked by the number of affected vehicles/equipment. In light of the Volkswagen diesel scandal, at least 584,000 diesel vehicles violated the Clean Air Act. VW is a repeat offender: the company had to pay a 120,000 U.S. dollar fine in 1974. In 1998, the Environmental Protection Agency and the Justice Department settled a case with Honda Motor Co. after it emerged that the Japanese carmaker had been selling vehicles with disabled misfire monitoring devices under its American Honda brand.
