; and (B) the offender’s release from any term of imprisonment was within 15 years of the commencement of the instant offense. (58) The term serious violent felony means— (A) an offense described in section 3559(c)(2)(F) of title 18, United States Code, for which the offender served a term of imprisonment of more than 12 months; and (B) any offense that would be a felony violation of section 113 of title 18, United States Code, if the offense were committed in the special maritime and territorial jurisdiction of the United States, for which the offender served a term of imprisonment of more than 12 months. ; and (2) in section 401(b)(1) ( 21 U.S.C. 841(b)(1) )— (A) in subparagraph (A), in the flush text following clause (viii)— (i) by striking If any person commits such a violation after a prior conviction for a felony drug offense has become final, such person shall be sentenced to a term of imprisonment which may not be less than 20 years and inserting the following: If any person commits such a violation after a prior conviction for a serious drug felony or serious violent felony has become final, such person shall be sentenced to a term of imprisonment of not less than 15 years ; and (ii) by striking after two or more prior convictions for a felony drug offense have become final, such person shall be sentenced to a mandatory term of life imprisonment without release and inserting the following: after 2 or more prior convictions for a serious drug felony or serious violent felony have become final, such person shall be sentenced to a term of imprisonment of not less than 25 years