The issue presented by this appeal is whether the district court, following the vacatur of a conviction for using a firearm during the course of a drug offense, see 18 U.S.C. § 924(c), in a 28 U.S.C. § 2255 proceeding, has jurisdiction to resentence the defendant on remaining related convictions. We hold the district court has such authority. 1
Defendant pleaded guilty to conspiring to possess heroin and cocaine, with the intent to distribute, 21 U.S.C. § 846, and using or carrying a firearm during and in relation to a drug trafficking offense, 18 U.S.C. § 924(c). The district court imposed an eighty-seven month sentence on the conspiracy count and a consecutive sixty-month sentence for the firearm conviction. We affirmed those sentences on appeal.
See United States v. Mendoza,
No. 93-6034,
Defendant then filed a § 2255 motion, challenging the firearm conviction in light of
Bailey v. United States,
— U.S. -,
We review de novo the district court’s determination that it had jurisdiction to re-sentence defendant on the conspiracy conviction.
See United States v. Moore,
Had the firearm conviction been vacated on direct appeal, the district court unquestionably would have had authority to resentenee defendant on the remaining conspiracy conviction, and, in doing so, to apply U.S.S.G. § 2Dl.l(b)(l)’s two-level enhancement of the base offense level for possessing a firearm during the underlying offense.
See Lang,
A district court does not have inherent authority to modify a previously imposed sentence; it may do so only pursuant to statutory authorization.
See United States v. Blackwell,
Section 2255 permits “[a] prisoner in custody under sentence of a court established by Act of Congress claiming the right to be released upon [specified grounds, to] move the court which imposed the sentence to vacate, set aside or correct the sentence.” 4 If the court determines that the defendant is entitled to relief under § 2255, then the statute requires that the court “vacate and set the judgment aside and ... discharge the prisoner or resentenee him or grant a new trial or correct the sentence as may appear appropriate.”
In this case, once the district court determined that defendant was entitled to § 2255 relief from his § 924(c) conviction, that court was obligated to set aside the judgment, which encompassed both convictions and sentences.
See
I Rec., doc. 120. Following
*710
vacatur of that judgment, it was appropriate for the district court to resentence defendant on the conspiracy conviction, in light of the interdependence of that sentence and the vacated § 924(c) sentence.
See, e.g., Morris,
Had defendant never been convicted under § 924(e), the district court would have enhanced the sentence on the conspiracy conviction by increasing the base offense calculation by two levels for possessing a dangerous weapon during that offense.
See
U.S.S.G. § 2D1.1(b)(1). That enhancement, however, is not available where a defendant is also convicted, under § 924(c), of using or carrying a firearm in relation to a drug offense.
See id.
§ 2K2.4 comment (background);
see also Lang,
“Clearly, the § 924(c) offense and the underlying offense are interdependent and result in an aggregate sentence, not sentences which may be treated discretely.”
Davis,
Defendant further argues that the district court’s authority to resentence him under § 2255 was limited because he did not challenge either the conspiracy conviction or sentence in his § 2255 motion. The specific issues the defendant raises in a § 2255 motion, however, do not circumscribe the district court’s authority when resentencing becomes necessary.
See Moore,
Although defendant, in this appeal, does not assert any double jeopardy or due process challenge to his resentencing, he does argue generally that resentencing is contrary to the finality to be afforded sentences in the § 2255 context. Because he challenged one of several interdependent sentences in his § 2255 motion, however, defendant does not have a legitimate expectation of finality in a related, but unchallenged, sentence.
See Davis,
On appeal, defendant does not challenge the district court’s application of U.S.S.G. § 2D1.1(b)(1) to the facts of this case. We, therefore, AFFIRM the district court’s re-sentencing defendant on the conspiracy con-' vietion, after vacating the related § 924(c) firearm conviction.
Notes
. After examining the briefs and appellate record, this panel has determined unanimously that oral argument would not materially assist the determination of this appeal. See Fed. R.App. P. 34(a); 10th Cir. R. 34.1.9. The case is therefore ordered submitted without oral argument.
. In
Bailey,
the Supreme Court held that the term "use” in § 924(c) requires proof of the defendant's active employment of a firearm, " 'a use that makes the firearm an operative factor in relation to the predicate offense.’ ”
United States v. Lang,
. We construe defendant's appeal to request a certificate of appealability, as required under the Antiterrorism and Effective Death Penalty Act of 1996,
see
28 U.S.C. § 2253(c), and we grant the certificate.
See United States v. Riddick,
. Section 2255's use of "sentence” in this context encompasses both the sentence under which a defendant is in custody at the time he initiates the § 2255 motion and any federal sentence that has been ordered to run consecutively to such a sentence.
See United States v. Bustillos,
