; and (B) does not include a defendant whose role was limited to transporting drugs or money at the direction of others; (2) the term manufacturer means a defendant who grew, produced, or manufactured a controlled substance and was the principal owner of such controlled substance; and (3) the term wholesaler means a defendant who sold non-retail quantities of a controlled substance to other dealers or distributors. . (b) Applicability The amendment made by this section shall apply only to a conviction entered on or after the date of enactment of this Act. 104. Clarification of section 924( c ) of title 18, United States Code (a) In general Section 924(c)(1)(C) of title 18, United States Code, is amended, in the matter preceding clause (i), by striking second or subsequent conviction under this subsection and inserting violation of this subsection that occurs after a prior conviction under this subsection has become final . (b) Applicability to pending and past cases (1) Pending cases This section, and the amendments made by this section, shall apply to any offense that was committed before the date of enactment of this Act, if a sentence for the offense has not been imposed as of such date of enactment. (2) Past cases (A) Sentence reduction (i) In general In the case of a defendant who, before the date of enactment of this Act, was convicted of an offense for which the penalty is amended by this section and was sentenced to a term of imprisonment for the offense, a term of imprisonment may be reduced only if— (I) the instant violation was for a drug trafficking offense that did not involve a violation of clause (ii) or (iii) of section 924(c)(1)(A) of title 18, United States Code; (II) the defendant has not otherwise been convicted of any serious violent felony