Fitzroy George Gutzmore, through counsel, appeals the district court’s denial of his motion for a reduced sentence, pursuant to 18 U.S.C. § 3582(c)(2). Gutzmore’s § 3582(c)(2) motion was based on Amendment 706 to the Guidelines, which reduced base offense levels applicable to crack cocaine. 1

On appeal, Gutzmore argues that he is eligible for a sentence reduction pursuant to § 3582(c)(2) because Amendment 706 lowered his base offense level from 38 to 36. He argues that the district court’s original sentencing determinations regarding the drug quantity attributed to him cannot stand in light of Apprendi v. New Jersey, 530 U.S. 466, 120 S.Ct. 2348, 147 L.Ed.2d 435 (2000). Gutzmore argues that his sentence is disparate with similarly situated individuals that were sentenced after Apprendi and United States v. Booker, 543 U.S. 220, 125 S.Ct, 738, 160 L.Ed.2d 621 (2005). Finally, he argues that the U.S. Sentencing Commission exceeded its delegated authority because U.S.S.G. § lB1.10(b)(2)(A)’s prohibition against a reduction below the amended guideline range violates Booker now that the guidelines are advisory.

“We review de novo a district court’s conclusions about the scope of its legal authority under 18 U.S.C. § 3582(c)(2).” United States v. James, 548 F.3d 983, 984 (11th Cir. 2008). A district court may reduce 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). Any reduction, however, must be “consistent with applicable policy statements issued by the Sentencing Commission.” Id. The applicable policy state *987 ments, found in § 1B1.10, state a reduction of a term of imprisonment is not authorized if the retroactive amendment does not have the effect of lowering the defendant’s applicable guideline range. U.S.S.G. § 1B1.10(a)(2)(B).

Here, Amendment 706 would reduce Gutzmore’s base offense level to 36. However, all other sentencing determinations remain unchanged. See United States v. Moreno, 421 F.3d 1217, 1220 (11th Cir. 2005) (holding that, with the exception of the amended guideline range, “all original sentencing determinations remain unchanged”). Therefore, after reinstating the original enhancements that total 4 levels, Gutzmore would have a total offense level of 40 and a criminal history category of III, and his applicable guideline range remains unchanged. See U.S.S.G. Ch. 5, Pt. A (table) (providing a sentencing range of 360 months’ to life imprisonment for a defendant with a criminal history category of III and an offense level of 40 to 43). Therefore, the district court properly determined that it was not authorized to reduce Gutzmore’s sentence pursuant to § 3582(c)(2). See U.S.S.G. § lB1.10(a)(2)(B) (stating that a reduction of a term of imprisonment is not authorized if the retroactive amendment does not have the effect of lowering the defendant’s applicable guideline range). Finally, Gutzmore’s Booker argument is foreclosed by precedent. See United States v. Melvin, 556 F.3d 1190, 1192-93 (11th Cir. 2009) (holding that Booker is inapplicable in § 3582(c)(2) proceedings), cert. denied, — U.S. -, 129 S.Ct. 2382, 173 L.Ed.2d 1300 (2009). Accordingly, we affirm.

AFFIRMED. 2