President Richard Nixon proposed the establishment of EPA and it began operation on December 2 , 1970 , after Nixon signed an executive order .
The Environmental Protection Agency is an independent agency of the United States federal government for environmental protection .
President Richard Nixon proposed the establishment of agency and it began operation on December 2 , 1970 , after Nixon signed an executive order .
The Environmental Protection Agency is an independent agency of the United States federal government for environmental protection .