The Council on Environmental Quality (CEQ) series documents Speth's time as a member, then later the head of the council during the Jimmy Carter United States presidential administration. The Council on Environmental Quality is a group that works under the Executive Branch of the United States government that develops environmental policies and initiatives. During Speth's time, he worked closely both with the United States president and other governmental offices to address issues of energy, the environment, and conservation. Materials in this series include correspondence, memorandums, papers, and speeches written by Speth.