Affirmed by published opinion. Judge WILKINS wrote the opinion, in which Judge MICHAEL and Judge DIANA GRIBBON MOTZ joined.
OPINION
Jermaine Lavonne Chase appeals his sentence, contending that it is unlawful under
Apprendi v. New Jersey,
I.
This case is now before us for the third time. In 1994, Chase was convicted of conspiracy to possess with the intent to distribute cocaine and cocaine base, see 21 U.S.C.A. § 846 (West 1999); possession of a firearm by a convicted felon, see 18 U.S.C.A. § 922(g) (West 2000); possession of cocaine base with the intent to distribute, see 21 U.S.C.A. § 841 (West 1999 & Supp.2002); possession of cocaine with the intent to distribute, see id.; and two counts of using a firearm in connection with a drug trafficking offense, see 18 U.S.C.A. § 924(c) (West 2000). The district court sentenced Chase to a total of 592 months imprisonment.
On appeal, we determined that Chase’s two convictions for use of a firearm in connection with a drug trafficking offense were invalid under
Bailey v. United States,
Chase appealed again, and we again granted relief. Our decision was prompted by uncertainty about whether the district court recognized its authority under appropriate circumstances to grant a downward departure based on post-offense rehabilitation. We remanded to allow the court to. consider this, issue.
See United States v. Chase,
On remand, the district court conducted a third sentencing hearing. At this hearing, Chase contended that his 360-month sentence for conspiracy was unlawful under Apprendi (which was decided after Chase II). The district court ruled that it could not consider this claim or others raised by Chase because it was restricted by our mandate to consideration of the. rehabilitation issue. The court then rejected Chase’s request for a downward departure and reinstated the prior sentence of 360 months.
II.
On appeal, Chase reiterates his
Ap
prendi-based challenges to his sentence. As noted above, the district court declined to consider these challenges because they were not encompassed within our mandate in
Chase II. See United States v. Bell,
Under
Apprendi
and
United States v. Promise,
To determine whether consecutive terms were required here, we consider three issues that the parties briefed at our direction: (i) whether Chase’s offenses were grouped pursuant to U.S. Sentencing Guidelines Manual §§ 3D1.1, 3D1.2 (1994), 3 (ii) whether such grouping was required by the guidelines, and (iii) whether it is permissible to “de-group” offenses in order to impose consecutive sentences pursuant to U.S.S.G. § 5G1.2.
It is apparently undisputed that Chase’s offenses were grouped and that such grouping was required. We now hold that such grouping does not preclude the imposition of consecutive sentences under § 5G1.2. This conclusion is supported by the language and structure of the guidelines, by contemporary and traditional practice, and by the policies underlying the guidelines.
A. Language and Structure of the Guidelines
The guidelines establish a process for selecting an appropriate sentence based on a defendant’s criminal history and the relevant conduct associated with the offense of conviction and the ensuing investigation and prosecution. See U.S.S.G. § 1B1.1. The rules regarding grouping and consecutive sentences apply in different phases of this process.
The grouping rules apply to the calculation of an “offense level” based on relevant conduct. 4 These rules
operate to accomplish two key objectives of the Sentencing Reform Act: (1) the avoidance of double punishment for what is in essence the same criminal conduct (e.g., a conspiracy offense and a substantive offense that was the sole object of the conspiracy ...), and (2) an incremental increase in punishment for each offense of conviction that embodies significant additional criminal conduct.
United States v. Watford,
The choice between concurrent and consecutive sentences arises later, when the court imposes a specific sentence. The court must select an appropriate term of imprisonment by consulting the sentencing table set forth in Chapter 5, Part A, which prescribes a guideline range based on the defendant’s final offense level and criminal *251 history category. The court must then refer to the “stacking” rule, § 5G1.2, if (i) the defendant has been convicted of multiple offenses and (ii) the “total punish ment” — i.e., the point within the guideline range designated by the district court as the appropriate term of imprisonment— exceeds the statutory maximum for the offense carrying the greatest penalty. In that event, the court must impose consecutive sentences “to produce a combined sentence equal to the total punishment.” U.S.S.G. § 5G1.2(d). Otherwise, § 5G1.2 mandates concurrent sentences in the absence of statutory requirements to the contrary.
As this discussion illustrates, grouping and stacking are separate concepts relevant in different stages of the sentencing process. Moreover, they are not mutually exclusive; that is,.as a purely logical matter, there is no obstacle to stacking a' defendant’s sentences for grouped offenses. Neither does any language in the grouping rules or § 5G1.2 prohibit consecutive sentences for grouped offenses. Indeed, we consider it significant that § 5G1.2 makes no distinction between grouped offenses and offenses in separate groups.
The only language that even suggests a prohibition against stacked sentences' for grouped offenses appears in the introduction to the grouping rules, which states that “counts that are grouped together are treated as constituting a single offense for purposes of the guidelines.” U.S.S.G. ch. 3, pt. D, intro, comment. It is clear from the context, however, that this language does not control the choice between concurrent and consecutive sentences. The grouping rules apply only to offense-level computations, not to the other components of the sentencing process. This is shown with particular clarity in the illustrations following U.S.S.G. § 3D1.5, which discuss the proper application of the grouping rules without any reference to total punishment. Moreover, the “single offense” contemplated in the commentary is not any individual count of conviction, but rather a hypothetical aggregate offense embracing all relevant conduct. In this respect, the treatment of grouped convictions as a single offense corresponds to the statutory treatment of multiple sentences as “a single, aggregate term of imprisonment.” 18 U.S.C.A. § 3584(c) (West 2000). Thus, we do not construe the “single offense” language of this commentary to preclude stacking of grouped offenses.
Our understanding of the relevant guidelines is reinforced by material added to the Guidelines Manual after Chase’s first sentencing hearing. Specifically, the commentary following U.S.S.G. § 2P1.2 expressly provides for consecutive sentences for grouped .offenses. See U.S. Sentencing Guidelines Manual § 2P1.2, comment, (n.2) (2001). Wdiile this does not conclusively resolve the issue, it tends to confirm that grouping and stacking are not inherently incompatible.
B. Contemporary and Traditional Practice
The practice of courts applying the guidelines is in accord with our determination that it is permissible to impose consecutive sentences for grouped offenses. Indeed, this court has already stated (arguably in dicta) that “section 5G1.2,in conjunction with section 3D 1.2, requires that a sentence on a conspiracy count shall run concurrently with the sentence on substantive counts that were included within the conspiracy,
except to the extent necessary to produce a sentence within the appropriate sentencing guidelines range.” Watford,
This approach is consistent with pre-guidelines practice. Before the guidelines were enacted, district courts enjoyed virtually “unbridled discretion” to choose between concurrent and consecutive sentences, even for closely related offenses.
Watford,
The main limitation on district court discretion in the pre-guidelines era was the doctrine of merger, which applied (and still applies) to bar separate sentences in certain circumstances.
See, e.g., United States v. Jones,
C. Policies Underlying the Guidelines
Finally, we consider whether a rule requiring concurrent sentences for grouped offenses would be consistent with the purposes underlying the guidelines. We believe it would not.,
Congress enacted the Sentencing Reform Act, which led to the enactment of the guidelines, in part to create “a system that imposes appropriately different sentences for criminal conduct of differing severity.” U.S.S.G. ch. 1, pt. A(3). In accord with this goal, the drafters of the guidelines adopted grouping rules “to provide incremental punishment for significant additional criminal conduct.” U.S.S.G. ch. 3, pt. D, intro, comment. A rule prohibiting stacked sentences for grouped offenses would interfere with this effort by limiting the range of punishments available to the sentencing court.
Furthermore, this rule would have a predictable and entirely undesirable bias in favor of more culpable offenders. Under the guidelines, a defendant’s sentencing range is increased if, inter alia, he played a leadership role in multi-defendant crimes, see U.S.S.G. § 3B1.1; he obstructed justice, during, the investigation of his offenses, see U.S.S.G. § 3C1.1; or he has an extensive criminal record, see generally U.S.S.G. ch. 4, pt. A. As the sentencing range increases in severity, it becomes more likely that the district court will need *253 to resort to stacking in order to achieve an appropriate sentence within the guideline range. If stacking for grouped offenses were prohibited, then two defendants guilty of multiple crimes might receive roughly the same sentence even though one was subject to a higher guideline range as a result of more harmful conduct or a more egregious criminal history.
A rule that favors more culpable criminals over their less culpable confederates does not promote justice. While countervailing considerations might justify adoption of such a rule, we are not aware of any considerations that would warrant a prohibition against stacking sentences for grouped offenses. Moreover, as discussed earlier, there is no evidence that the guidelines contain such a prohibition. For all of these reasons, we hold that the district court could have sentenced Chase to consecutive terms totaling 360 months. In fact, § 5G1.2 would have required consecutive sentences if necessary to achieve the “total punishment.”
See Angle,
III.
For the foregoing reasons, we affirm the judgment of the district court.
AFFIRMED.
Notes
. Chase has also raised an unrelated claim concerning the calculation of his criminal history category. 1 We affirm the ruling of the district court that consideration of this issue is barred by the mandate rule.
. It should be noted that Promise was decided after Chase's most recent sentencing hearing.
. Unless otherwise indicated, all of our guideline citations are to the 1994 Guidelines Manual.
. In assigning an offense level, the district court begins with a base offense level and then considers adjustments based on factors specified in the guidelines (such as possession of a weaon or the defendant s role m tire otrense) and departures, some grounds tor . which are set forth in Chapter 5, Part K.
