how was the clean air act passed
The Federal Clean Air Act. This page last reviewed May 5, 2015. Background: The Federal Clean Air Act (FCAA) is the federal law passed in 1970, and last amended in 1990, which forms the basis for the national air pollution control effort.he Federal Clean Air Act. This page last reviewed May 5, 2015. Background: The Federal Clean Air Act (FCAA) is the federal law passed in 1970, and last amended in 1990, which forms the basis for the national air pollution control effort.