text: 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 created on 1 July 1973 , by Reorganization Plan No. 2 of 1973 , signed by President Richard Nixon on 28 March 1973 .