Original: History and mandate The Drug Enforcement Administration was established on 1 July 1973, by Reorganization Plan No. 2 of 1973, signed by President Richard Nixon on 28 March 1973.
Simplified: The Drug Enforcement Administration was started on 1 July 1973, by Reorganization Plan No. 2 of 1973, signed by President Richard Nixon on 28 March 1973.