History of catalyst use in cars
In 1970, the US government after reviewing the California Air Pollution Control Agency report. The Clean Air Amendment was passed, and American manufacturers were forced into action. And according to the established anti-pollution laws, they solved their deficiencies. Laws were approved in 1975. that the majority of automobile companies were forced to use the catalytic converter system in cars. The installation of the catalytic converter became mandatory throughout the United States this year, and it was used in Europe since 1993.