2. In determining the amended guideline range under subsection (b), the court shall substitute only the amendments listed in subsection (c) for the corresponding guideline provisions that were applied when the defendant was sentenced. All other guideline application decisions remain unaffected.
3. Under subsection (b), the amended guideline range and the term of imprisonment already served by the defendant limit the extent to which an eligible defendant’s sentence may be reduced under 18 U.S.C. § 3582(c)(2). When the original sentence represented a downward departure, a comparable reduction below the amended guideline range may be appropriate; however, in no case shall the term of imprisonment be reduced below time served. Subject to these limitations, the sentencing court has the discretion to determine whether, and to what extent, to reduce a term of imprisonment under this section.
4. Only a term of imprisonment imposed as part of the original sentence is authorized to be reduced under this section. This section does not authorize a reduction in the term of imprisonment imposed upon revocation of supervised release.
5. If the limitation in subsection (b) relating to time already served precludes a reduction in the term of imprisonment to the extent the court determines otherwise would have been appropriate as a result of the amended guideline range, the court may consider any such reduction that it was unable to grant in connection with any motion for early termination of a term of supervised release under 18 U.S.C. § 3583(e)(1). However, the fact that a defendant may have served a longer term of imprisonment than the court determines would have been appropriate in view of the amended guideline range shall not, without more, provide a basis for early termination of supervised release. Rather, the court should take into account the totality of circumstances relevant to a decision to terminate supervised release, including the term of supervised release that would have been appropriate in connection with a sentence under the amended guideline range.
Background: Section 3582(c)(2) of Title 18, United States Code, provides: "[I]n the case of a defendant who has been sentenced to a term of imprisonment based on a sentencing range that has subsequently been lowered by the Sentencing Commission pursuant to 28 U.S.C. § 994(o), upon motion of the defendant or the Director of the Bureau of Prisons, or on its own motion, the court may reduce the term of imprisonment, after considering the factors set forth in section 3553(a) to the extent that they are applicable, if such a reduction is consistent with applicable policy statements issued by the Sentencing Commission."
This policy statement provides guidance for a court when considering a motion under 18 U.S.C. § 3582(c)(2) and implements 28 U.S.C. § 994(u), which provides: "If the Commission reduces the term of imprisonment recommended in the guidelines applicable to a particular offense or category of offenses, it shall specify in what circumstances and by what amount the sentences of prisoners serving terms of imprisonment for the offense may be reduced."
Among the factors considered by the Commission in selecting the amendments included in subsection (c) were the purpose of the amendment, the magnitude of the change in the guideline range made by the amendment, and the difficulty of applying the amendment retroactively to determine an amended guideline range under subsection (b).
The listing of an amendment in subsection (c) reflects policy determinations by the Commission that a reduced guideline range is sufficient to achieve the purposes of sentencing and that, in the