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 ease is therefore ordered submitted without oral argument.
Defendant appeals the sentence imposed on him by the district court following his plea of guilty to conspiracy to travel interstate to facilitate a narcotics enterprise in violation of 18 U.S.C. § 1952(a)(3). He asserts that the district court erred by refusing to depart downward from the sentencing range applicable under the U.S. Sentencing Guidelines because of his post-offense rehabilitation efforts. The district court found that it lacked the authority to consider this factor as a basis for downward departure, based on our holding in
United States v. Ziegler,
Defendant filed a Motion for Downward Departure prior to sentencing, asserting that his exemplary post-offense efforts at rehabilitation, including community service and his continued' drug-free status, provided a basis for a downward departure from the applicable sentencing range. The district court rejected Defendant’s argument that the Supreme Court’s holding in Koon effectively overruled this court’s holding in Ziegler that *1240 even extraordinary efforts at drug rehabilitation could not be a basis for a downward departure. Despite Defendant's numerous objections, the district court adopted the findings of the presentence report and imposed the maximum guideline sentence of sixty months imprisonment.
This court may "exercise jurisdiction to review a sentencing court's refusal to depart from the sentencing guidelines [only] in the very rare circumstance that the district court states that it does not have any authority to depart from the sentencing guideline range for the entire class of circumstances proffered by the defendant." United States v. Castillo,
District courts must impose a criminal sentence within the range resulting from a proper application of the U.S. Sentencing Guidelines "unless the court finds that there exists an aggravating or mitigating circumstance of a kind, or to a degree, not adequately taken into consideration by the Sentencing Commission in formulating the guidelines that should result in a sentence different from that described." 18 U.S.C. § 3553(b). In Ziegler we held that the fact that defendant made extraordinary efforts at drug rehabilitation was not a mitigating factor not adequately taken into consideration by the guidelines, and, therefore, efforts at rehabifi-tation could not be a basis for departure. See Ziegler,
After we decided Ziegler, the Supreme Court "illuminated" the analysis a court should employ to determine when it may depart from the applicable guideline range. United States v. Brock,
Thus, the unmistakable teaching of Koon is that oniy those factors on which the Commission has forbidden reliance-e.g., drug or alcohol dependence or abuse; race, sex, national origin, creed, religion, or socioeconomic status; lack of youthful guidance or similar circumstances indicating a disadvantaged upbringing; personal financial difficulties or economic pressure on a trade or business-never may provide an appropriate basis for departure. All others potentially may provide a basis for departure under appropriate circumstances.
Brock,
Additionally, the correct inquiry for whether a potential basis for departure was considered by the Sentencing Commission focuses on whether the potential basis is addressed by the "guidelines, policy statements, or official commentary and whether it is encompassed within the heartland of situations to which the guidelines were intended to apply." Brock,
Because the district court’s decision was premised on our holding in Ziegler, which has been effectively overruled by Koon, 2 we REMAND to the district court to determine whether Defendant is entitled to a downward departure from the sentence applicable under the guidelines based on his efforts at drug rehabilitation. We have reviewed Defendant’s other claims for relief and find them without merit.
REMANDED.
Notes
. The court granted Defendant a three-level adjustment for acceptance of responsibility. See R., Vol. II at 354, 435.
. "[A] single panel is permitted to reconsider a previous Tenth Circuit decision to the extent the new [Supreme Court] case law invalidates our previous analysis.”
Hurd v. Pittsburg State Univ.,
