Ronald Delaney appeals from the denial of his motion for a reduced sentence, filed pursuant to 18 U.S.C. § 3582(c)(2) and Amendment 706 to the Sentencing Guidelines, which reduced the base offense levels applicable to crack cocaine found in U.S.S.G. § 2D1.1. On appeal, Delaney, who was sentenced under the career offender guideline, U.S.S.G. § 4B1.1, concedes that our precedent forecloses his argument, but, in order to preserve the issue, argues that the district court erred in denying his motion. After thorough review, we affirm.

“We review de novo a district court’s conclusions about the scope of its legal authority under 18 U.S.C. § 3582(e)(2).” United States v. James, 548 F.3d 983, 984 (11th Cir. 2008).

A district court may modify a term of imprisonment in the case of a defendant who was sentenced to a term of imprisonment based on a sentencing range that has subsequently been lowered by the Sentencing Commission. 18 U.S.C. § 3582(c)(2). The Sentencing Commission has noted that a defendant is ineligible for a sentence reduction where an “amendment does not have the effect of lowering [his] applicable guideline range because of the operation of another guideline or statutory provision.” U.S.S.G. § 1B1.10, comment. (n.l(A)).

As Delaney concedes, his argument is foreclosed by precedent. We recently held that, “[w]here a retroactively applicable guideline amendment reduces a defendant’s base offense level, but does not alter the sentencing range upon which his or her sentence was based, § 3582(c)(2) does not authorize a reduction in sentence.” United States v. Moore, 541 F.3d 1323, 1330 (11th Cir. 2008), cert. denied, McFadden v. United States, — U.S. -, 129 S.Ct. 965, 173 L.Ed.2d 156 (2009), and cert. denied, — U.S.-, 129 S.Ct. 1601, 173 L.Ed.2d 689 (2009). Because Delaney’s sentencing range was calculated under the career-offender provisions in U.S.S.G. § 4B1.1, rather than the drug quantity table in § 2D1.1, Amendment 706 did not have the effect of lowering Delaney’s sentencing range, and, thus, he was ineligible for a sentence reduction. Accordingly, we affirm.

AFFIRMED.