Controlled substances import and export act— The following provisions of the Controlled Substances Import and Export Act (21 U.S.C. 951 et seq.) are repealed:
Pending cases— This section, and the amendments made by this section, shall apply to any sentence imposed after the date of enactment of this Act, regardless of when the offense was committed.
Past cases— In the case of a defendant who, before the date of enactment of this Act, was convicted or sentenced for a Federal offense involving cocaine base, the sentencing court may, on motion of the defendant, the Bureau of Prisons, the attorney for the Government, or on its own motion, impose a reduced sentence after considering the factors set forth in section 3553(a) of title 18, United States Code.