; (B) in subparagraph (B), in the flush text following clause (viii), by striking life imprisonment, a fine and inserting a term of imprisonment which may not be less than 25 years and not more than life imprisonment, a fine ; and (C) in subparagraph (C), by striking life imprisonment, a fine and inserting a term of imprisonment which may not be less than 25 years and not more than life imprisonment, a fine . (2) Retroactive effect The amendments made by this subsection apply with respect to convictions occurring before, on, or after the date of the enactment of this Act. (f) Procedures related to seeking enhanced drug penalties for drug trafficking Section 411 of the Controlled Substances Act ( 21 U.S.C. 851 ) is amended by striking paragraph (2) of subsection (a) and inserting the following: (2) No person who is convicted of an offense under this part shall be sentenced to increased punishment by reason of a prior conviction if— (A) except as provided in paragraph (4), the Government fails, before trial, or before entry of a plea of guilty, to file an information with the court and serves a copy of such information on the person or counsel for that person, stating any previous conviction upon which the Government intends to rely for the enhanced penalty; (B) the person was not convicted as alleged in the information; (C) the conviction is for simple possession of a controlled substance, the offense was classified as a misdemeanor under the law of the jurisdiction in which the proceedings were held, the finding that the defendant committed an act of juvenile delinquency that made more than 10 years before the defendant’s commencement of the instant offense, excluding any period during which the defendant was incarcerated, or the proceedings resulted in a disposition that was not deemed a conviction under that law; (D) the conviction has been dismissed, expunged, vacated, or set aside, or for which the person has been pardoned or has had civil rights restored; (E) the conviction is invalid