OPINION
Shannon Strayhorn, the defendant-appellant in this case, appeals his mandatory minimum sentence of 120 months’ imprisonment and 8 years’ supervised release for his role in a marijuana distribution conspiracy. Specifically, Strayhorn challenges the district court’s finding of the amount of drugs attributable to him for sentencing purposes. According to Strayhorn, the Supreme Court’s decision in
Apprendi v. New Jersey,
I. BACKGROUND
As part of an undercover operation into drug activity in the Northern Kentucky *464 and Greater Cincinnati, Ohio area conducted by the Drug Enforcement Administration (“DEA”), federal agents recorded several conversations between Alfred Phillips (“Phillips”) and another individual. As a result of these conversations, DEA agents were alerted to Phillips’s attempt to purchase $30,000 worth of marijuana from a Mexican supplier at a local restaurant in Covington, Kentucky. On December 30, 1997, a DEA agent posing as the Mexican supplier staged a controlled sale of marijuana to Phillips. Phillips was subsequently arrested attempting to purchase 38 pounds of marijuana from the DEA agent; two pounds of marijuana were also recovered from Phillips’s car.
Subsequent to his arrest, Phillips agreed to cooperate with the DEA agents in their investigation of other individuals involved in the marijuana trade in Greater Cincinnati. Pursuant to this agreement, Phillips advised the agents that Shannon Stray-horn had loaned him $18,000 toward the foiled marijuana purchase on December 30 and that he had regularly been purchasing marijuana from Strayhorn for the past several months. Phillips began recording his conversations with Strayhorn for the DEA agents. From the information gleaned from these recordings, federal agents executed a search at Strayhorn’s residence on January 17, 1998, where they recovered 48 pounds of marijuana, $3,000 in cash, and a handgun.
Strayhorn, Phillips, and others were indicted on two counts of drug charges in the Eastern District of Kentucky on January 14, 1998. In count one, the government charged Strayhorn and co-defendants with conspiracy to possess with intent to distribute and conspiracy to distribute “a measurable quantity of marijuana” between December 1997 and January 1998, in violation of 21 U.S.C. §§ 841(a)(1) and 846. Joint Appendix (“J.A.”) at 26. Count two charged that on December 30, 1997, Strayhorn and co-defendants, aided and abetted by each other, attempted to possess -with intent to distribute fifty pounds of marijuana, in violation of 21 U.S.C. §§ 841(a)(1) and 846 and 18 U.S.C. § 2.
Strayhorn initially entered a plea of not guilty on February 26, 1998. On April 16, 1998, Strayhorn filed a motion for rear-raignment; on June 3, 1998, his retained counsel filed a motion to withdraw. Both motions were subsequently granted. On September 28, 1998, Strayhorn again sought rearraignment to enter a guilty plea. Pursuant to an oral plea agreement acknowledged on the record, Strayhorn ultimately pleaded guilty, on October 19, 1998, to count one of the indictment. As part of the oral plea agreement, Strayhorn explicitly reserved the right to challenge the amount of drugs attributable to him as relevant conduct under United States Sentencing Guidelines (“U.S.S.G.”) § 1B1.3, and the government agreed to dismiss count two as to him at sentencing.
At the plea hearing before the magistrate judge, Strayhorn specifically and repeatedly expressed reservations about the amount of marijuana that would be attributed to him by the district court during the sentencing phase. While acknowledging his guilt for the amount of marijuana seized from his home and from co-defendant Phillips, he explicitly denied responsibility for any additional marijuana for which the government sought to hold him responsible. In fact, he informed the magistrate judge that he disagreed with the stipulated factual basis accompanying his plea: although the factual basis stated that the government could prove at trial that Strayhorn would have attempted to purchase 75 additional pounds of marijuana the day after the government arrested Phillips, Strayhorn denied this fact. J.A. at 170-71 (Plea Hr’g). Strayhorn also *465 asked the magistrate judge for a definition of relevant conduct, but the judge declined to define the term for him. J.A. at 175.
On October 21, 1998, Strayhorn sent a letter to the court, construed as a motion to withdraw his guilty plea, in which he requested appointment of new counsel. In the letter, Strayhorn reiterated his willingness to accept responsibility for 88 pounds of marijuana, but he stated that he was unwilling to plead guilty until other matters in his case were addressed. J.A. at 70. The court reviewed Strayhorn’s request and denied it, although the court did order the government to meet with him and exchange documentation relating to his relevant conduct. J.A. at 181 (Presen-tence Report).
The United States Probation Office prepared a presentence report shortly after Strayhorn entered his plea. The probation officer calculated Strayhorn’s base offense level under U.S.S.G. § 2D1.1 by determining Strayhorn’s “relevant conduct” pursuant to § 1B1.3. Under § 1B1.3, the defendant’s base offense level is determined by assessing the “relevant conduct” in which the defendant engaged, including “the specific acts and omissions for which the defendant is to be held accountable” as well as conduct which was not part of the offense of conviction. See U.S.S.G. § 1B1.3 comment, (nn.l, 3). The probation officer attributed to Strayhorn 188 kilograms, or 414 pounds, of marijuana. There is no indication in the presentence report how the probation officer arrived at the 188 kilogram figure. This drug quantity yielded a base offense level of 26 under § 2Dl.l(c)(7), which was then reduced by a three-point downward adjustment for acceptance of responsibility, producing a total offense level of 23. Strayhorn’s criminal history category was determined to be level III, which included a prior felony drug offense. A total offense level of 23 and criminal history category III yielded a sentencing range under the Guidelines of between 57 and 71 months. Because, however, the statutory minimum sentence for conspiracy to possess 188 kilograms of marijuana for a defendant with a prior felony drug conviction is a mandatory minimum of ten years’ imprisonment pursuant to 21 U.S.C. § 841(b)(l)(B)(vii), the probation officer noted that Strayhorn must, pursuant to U.S.S.G. § 5Gl.l(b), be sentenced to the statutory mandatory minimum. Thereafter, Strayhorn filed an objection to the presentence report’s use of 188 kilograms in determining his base offense level. J.A. at 195.
The district court conducted a sentencing hearing on February 8, 1999. When the district court ascertained Strayhorn’s intention to plead guilty, Strayhorn again reiterated that he wished to plead guilty only to the amount of marijuana seized from Phillips, 40 pounds, and the amount seized from Strayhorn’s home, 48 pounds. J.A. at 91, 94 (Sentencing Hr’g). The government explained that it believed it could show that Strayhorn’s relevant conduct involved a conspiracy to sell, over a several-month period, approximately 375 pounds of marijuana in addition to the 88 pounds for which Strayhorn conceded responsibility. J.A. at 95. The government then offered Phillips as its principal witness to establish the amount of marijuana involved in the conspiracy.
Phillips testified that Strayhorn approached him in May 1997 to strike up a business relationship. According to Phillips, he purchased varying amounts of marijuana from Strayhorn, ranging from ten to sixty pounds a month, from May through December of 1997. The court noted that Phillips had testified that he purchased or was “fronted” approximately 260 pounds of marijuana from Strayhorn, in addition to the 88 pounds which were *466 actually seized. J.A. at 105. Strayhorn then testified and disputed Phillips’s characterization of their relationship; according to Strayhorn, Phillips was his supplier of small quantities of marijuana for approximately six months in 1997. Stray-horn denied selling marijuana to Phillips, although he admitted lending him $18,000 for the purchase of marijuana on the day Phillips was arrested.
At the end of the hearing, the district court stated that it credited Phillips’s testimony over Strayhorn’s: “[T]he testimony of Mr. Phillips was clear and concise, straightforward, went down the line, gave clear and concise numbers, whereas I find the testimony of the defendant to be highly evasive and not worthy of belief....” J.A. at 143. The district court then adopted the factual findings and Guidelines calculation in the presentence report and sentenced Strayhorn to 120 months’ imprisonment and eight years of supervised release, pursuant to the mandatory minimum sentence required by 21 U.S.C. § 841(b)(1)(B) for a drug offense involving, inter alia, more than 100 kilograms of marijuana.
On appeal, Strayhorn challenges the attribution of 188 kilograms of marijuana to him for relevant conduct under § IB 1.3. In his brief to this court, Strayhorn asserted that the district court erred by crediting Phillips’s testimony over his own and by calculating Strayhorn’s drug quantity according to Phillips’s testimony; Strayhorn also argued that the district court violated his due process rights by determining his relevant conduct by a preponderance of the evidence instead of a higher evidentia-ry burden.
Subsequent to the briefing in this case but before oral argument, the Supreme Court handed down
Apprendi v. New Jersey,
In its brief, the government contended that the district court did not err in its calculations of drug quantity for relevant conduct purposes. The government also argued that Strayhorn waived his constitutional challenge to his sentence, and that, even if not waived, the district court did not commit constitutional error by using the preponderance of the evidence standard, as this was the standard dictated by our precedent. At oral argument, the government conceded that its waiver argument must fail in light of this court’s recent precedent in
United States v. Hayes,
II. ANALYSIS
A. Standard of Review
We first must determine the relevant standard of review for Strayhorris constitutional challenge to his sentence. This case comes to us on direct appeal. Because he is asserting a new constitutional rule that was decided while his case was pending, Strayhorn may properly assert this claim.
Griffith v. Kentucky,
B. Apprendi Analysis
This case requires us to add to our burgeoning case law interpreting the Supreme Court’s decision in
Apprendi v. New Jersey,
We have held that
Apprendi
teaches several principal lessons: first, that “[t]he offense charged in an indictment must be stated with sufficient ‘certainty and precision’ so that there can be no doubt as to the judgment which should be given if the defendant is convicted;” second, that “courts must count any ‘fact’ that increases the ‘penalty beyond the prescribed statutory maximum’ as an element of the offense ‘except for one important exception,’
ie.,
‘the fact of a prior conviction;”’ and third, “that it ‘is unconstitutional for a legislature’ to treat ‘facts that increase the prescribed range of penalties to which a criminal defendant is exposed’ as mere sentencing factors, rather than facts to be established as elements of the offense.”
United States v. Ramirez,
Apprendi
has had significant repercussions for drug prosecutions under 21 U.S.C. § 841(a) and sentencing under § 841(b), which prescribes staggered maximum and mandatory minimum penalties for drug offenses dependent upon, inter alia, drug quantity. Already, we have held, pursuant to
Apprendi,
that the government must name in the indictment the quantity of drugs for which it seeks to hold
*468
the defendant responsible under 21 U.S.C. § 841(a), and that the determination of drug quantity under § 841(b) must, when it subjects the defendant to an enhanced sentence, be considered an element of the offense rather than a sentencing factor.
See Ramirez,
Recently, we noted that an
Apprendi
violation may occur when a defendant pleads guilty to a drug offense as well as when he chooses to take his case to trial.
See United States v. Harper,
The government argues that
Apprendi
does not apply in this case because Strayhorn’s sentence of 120 months does not exceed the statutory maximum under § 841(b)(1)(D), the default maximum for marijuana offenses when the defendant has a prior felony conviction.
1
In
Flowal,
the defendant was indicted for possession of 5.2 kilograms of cocaine, in violation of §§ 841(a)(1) and 841(b)(1)(A). He pleaded not guilty and was convicted by a jury for the substantive offense. The district court determined the amount of drugs for sentencing purposes by a preponderance standard. The court concluded that Flowal
*469
was responsible for 5.008 kilograms of cocaine and, pursuant to § 841(b)(1)(A), sentenced Flowal to life in prison, which was a mandatory minimum sentence given Flo-wal’s two prior felony drug convictions. On appeal, we held that the district court erred in determining the amount of drugs by a preponderance-of-the-evidence standard. We determined that, consistent with
Apprendi,
the drug amount should have been determined by a jury beyond a reasonable doubt because “a finding as to the weight of the drugs determined the range of penalties that would apply to Flowal.”
Flowal,
In
Flowal,
the district court’s life sentence was also in excess of the default statutory maximum, 30 years, under § 841(b)(1)(C) for defendants with prior felony drug convictions. Thus, while similar,
Flowal
is arguably distinguishable from the present case.
Ramirez,
however, is not. Because of his prior felony conviction, Ramirez was subject to a maximum thirty-year sentence under § 841(b)(1)(C) for conspiring to distribute and attempting to possess with the intent to distribute an unspecified amount of cocaine. After a jury trial, he was sentenced to 20 years’ imprisonment, the mandatory minimum under § 841(b)(1)(A), based on a quantity of drugs determined by the district court under the preponderance-of-the-evidence standard. We applied the analysis in
Ap-prendi
to Ramirez’s sentence and concluded that “ ‘the assessment of facts that increase the prescribed range of penalties to which a criminal defendant is exposed,’ such as moving up the scale of mandatory minimum sentences, invokes the full range of constitutional protections required for ‘elements of the crime.’ ”
Ramirez,
In the instant case, the district court’s drug quantity finding increased the statutory sentence to which Strayhorn was exposed from a maximum term of ten years’ imprisonment pursuant to 21 U.S.C. § 841(b)(1)(D) to a mandatory minimum sentence of ten years’ imprisonment under § 841(b)(1)(B). Strayhorn never pleaded guilty to the elements of the offense under *470 § 841(b)(1)(B) nor were they charged or proved beyond a reasonable doubt. Thus, Strayhorn was effectively sentenced under a separate statutory offense with a higher penalty range than the default penalty provision under § 841(b)(1)(D). It matters not, according to Ramirez, that the statutory maximum for § 841(b)(1)(D) is equivalent to the statutory mandatory minimum for § 841(b)(1)(B).
Under
Ramirez,
if the government seeks to convict and sentence Strayhorn under § 841(b)(1)(B) for conspiracy to possess more than 100 kilograms of marijuana, it must indict him appropriately and then prove the elements of that offense beyond a reasonable doubt. Otherwise, the government may indict a defendant under the provision with the lowest statutory maximum sentence and then, as in this ease, rely on relevant conduct findings to achieve what it otherwise might not if held to a higher burden of proof, namely a sentence under a separate offense’s enhanced penalty provision. Of course, it is clearly permissible “for judges to exercise discretion-taking into consideration various factors relating both to offense and offender-in imposing a judgment within the range prescribed by statute.”
Apprendi,
Had the district court required Stray-horn’s relevant conduct to be proved beyond a reasonable doubt, Strayhorn may *471 not have been held responsible for over 100 kilograms of marijuana and the mandatory minimum under § 841(b)(1)(B) would not have applied. Not only would his statutory sentencing range have been lesser, but he would not have been saddled with the increased social opprobrium that accompanies the higher degree of criminal culpability assigned to him.
III. CONCLUSION
Because the district court’s factual finding of drug quantity by a preponderance of the evidence transformed the crime to which the defendant pleaded guilty (conspiracy to possess less than fifty kilograms of marijuana punishable by a maximum ten-year sentence) into a greater crime for the purposes of sentencing (conspiracy to possess over 100 kilograms of marijuana punishable by a mandatory minimum ten-year sentence), the district court’s finding violated Strayhorn’s Fifth and Sixth Amendment rights. Consequently, we must VACATE the defendant’s sentence and REMAND for resentencing. Because Strayhorn waived his right to a jury trial by pleading guilty,
cf. Rebmann,
Notes
. The penalties for a marijuana offense when the defendant has one prior felony drug conviction are as follows: minimum 20 years to maximum life sentence for 1,000 kilograms or more (§ 841(b)(1)(A)); minimum 10 years to maximum life sentence for 100 kilograms or more (§ 841(b)(1)(B)); maximum thirty years' imprisonment for 50 to 100 kilograms (§ 841(b)(1)(C)); maximum ten years' imprisonment for up to 50 kilograms (§ 841(b)(1)(D)). These sentences significantly overlap, creating the potential for the situation, such as this case, in which a defendant is convicted under the default provision of § 841(b)(1)(D) but sentenced, pursuant to a district court finding of drug quantity by the preponderance standard, under a higher penalty provision.
. Although the Supreme Court has not addressed the particular question before us, it has never condoned a drug sentence calculated pursuant to relevant conduct findings that increase the statutory penalty range to which the defendant is exposed. In
Witte,
the defendant was sentenced under § 841(b)(1)(B) for possession of 100 kilograms or more of marijuana; his statutory sentencing range was between 5 to 40 years. The Supreme Court approved the inclusion of an additional quantity of cocaine from an earlier transaction for purposes of quantifying the defendant's base offense level because the higher Guidelines range to which the defendant was exposed did not exceed the scope of the legislatively authorized penalty.
See Witte,
