About EPA

Lee M. Thomas

Official portrait of Administrator Lee M. Thomas
Official portrait of Administrator Lee M. Thomas

1985-1989

Administrator Thomas served under President Ronald Reagan. Under his leadership, the U.S. signed the Montreal Protocol, pledging to phase out the use of chlorofluorocarbons, and passed rules to phase out lead additives from gasoline. Administrator Thomas led a government-wide task force to coordinate the federal response to the Chernobyl nuclear disaster.