The Clean Air Act of 1970 made rules for getting sulfur from oil refining, processing of sulfide, ores, and even the combustion of electricity generation. This required technologies to be made in order to coincide with the Clean Air Act.
The Clean Air Act of 1970 established regulations for sulfur removal from oil refining, processing of sulfide ores, and even electricity generation combustion. This led to the development of technologies that aligned with the Clean Air Act.