They began using e-mail I've checked with three other sources and they say the same thing
Do you have a picture of the drawing
The enactment of the Clean Air Act of 1970 (1970 CAA) resulted in a major shift in the federal government's role in air pollution control. This legislation authorized the development of comprehensive federal and state regulations to limit emissions from both stationary (industrial) sources and mobile sources.
True since most blacks at the time lived in the south
