TASHIMA, Circuit Judge:
Calvin Wayne Buckland appeals the sentence imposed by the district court following his conviction for conspiracy to distribute methamphetamine and possession with intent to distribute methamphetamine, in violation of 21 U.S.C. §§ 841 and 846. After briefing was completed in this appeal, the Supreme Court held that any fact, other than a prior conviction, that increases the prescribed statutory maximum penalty to which a defendant is exposed must be submitted to a jury and proven beyond a reasonable doubt. Apprendi v. New Jersey, 530 U.S. 466, 490, 120 S.Ct. 2348, 147 L.Ed.2d 435 (2000). We subsequently vacated submission and ordered supplemental briefs on the impact of Apprendi on this appeal. Buckland then argued that Apprendi rendered 21 U.S.C. § 841(b) facially unconstitutional. We have jurisdiction pursuant to 18 U.S.C. § 3742(a) and 28 U.S.C. § 1291, and we hold that 21 U.S.C. §§ 841(b)(1)(A) & (B) are facially unconstitutional under Appren-di.1 We therefore vacate Buckland’s sentence and remand for resentencing under 21 U.S.C. § 841(b)(1)(C).
BACKGROUND
In 1994, Buckland was indicted on one count of conspiracy to distribute methamphetamine, in violation of 21 U.S.C. §§ 841(b)(1)(A) & 846, three counts of possession of methamphetamine with intent to distribute, in violation of 21 U.S.C. §§ 841(a)(1) & (b)(1)(B), and three counts of use of a firearm during a drug trafficking crime, in violation of 18 U.S.C. § 924(c). Count One of the indictment alleged that the conspiracy involved “one thousand (1000) grams or more of a mixture or substance containing a detectable amount of methamphetamine,” but, as was customary, the jury was not instructed that it needed to find that any particular amount of methamphetamine was involved in order to convict on the conspiracy or the possession counts. Buckland was convicted on all seven counts. The district court determined the amount of drugs under the preponderance of the evidence standard and sentenced Buckland to 824 months’ imprisonment. On appeal, we affirmed his conspiracy and drug convictions, vacated the firearm convictions under Bailey v. [1160]*1160United States, 516 U.S. 137, 116 S.Ct. 501, 133 L.Ed.2d 472 (1995), and remanded for resentencing. United States v. Buckland, No. 95-30147, 1996 WL 632958 (9th Cir. Oct. 28, 1996) (unpublished decision).
On remand, Buckland attempted to raise a number of issues, including whether the district court relied on an inaccurate estimate of the amount of drugs in establishing his base offense level. The district court, however, limited the hearing to a firearm enhancement issue and sentenced Buckland to 360 months’ imprisonment. Buckland again appealed, and we held that the remand in the first appeal was a general remand that permitted the district court to consider all of Buckland’s sentencing objections. We therefore vacated his sentence and remanded for resentencing. United States v. Buckland, Nos. 97-30204, 97-35687, 1998 WL 514852 (9th Cir. Aug. 14, 1998) (unpublished decision). On the second remand, the district court sentenced Buckland to a term of 324 months.
On this appeal, Buckland contends that the district court’s findings on the type and quantity of methamphetamine were erroneous, that the court erred in failing to decrease his sentence for acceptance of responsibility, and that his trial counsel rendered ineffective assistance. In his supplemental briefs, as indicated, Buckland contends that his sentence was imposed in violation of Apprendi, and that 21 U.S.C. § 841(b) is facially unconstitutional under Apprendi.2 We agree.
STANDARD OF REVIEW
Because Apprendi was decided after Buckland’s resentencing, Buckland did not object to the district court’s use of the preponderance of the evidence standard in determining the amount of methamphetamine. Our review therefore is for plain error. Fed.R.Crim.P. 52(b). Under the plain error standard, Buckland must establish that there was error, that the error was plain, and that it affected his substantial rights. United States v. Olano, 507 U.S. 725, 732, 113 S.Ct. 1770, 123 L.Ed.2d 508 (1993). If these conditions are met, we may exercise our discretion to correct the error only if the error “ ‘seriously affect[s] the fairness, integrity or public reputation of judicial proceedings.’ ” Id. (quoting United States v. Young, 470 U.S. 1, 15, 105 S.Ct. 1038, 84 L.Ed.2d 1 (1985)) (alteration in the original).
ANALYSIS
I.
The issue in Apprendi was whether the Due Process Clause of the Fourteenth Amendment requires that a fact authorizing an increase in the maximum prison sentence for an offense must be found by a jury beyond a reasonable doubt. Apprendi, 530 U.S. at 469, 120 S.Ct. 2348. In a decision foreshadowing Apprendi, the Supreme Court had acknowledged the possible constitutional problems of a statute that would allow an increased penalty based on a fact found by a judge by a preponderance of the evidence. Jones v. United States, 526 U.S. 227, 242-52, 119 S.Ct. 1215, 143 L.Ed.2d 311 (1999). The Court had avoided the constitutional question, however, by construing the statute at issue, 18 U.S.C. § 2119, the federal carjacking statute, as establishing separate offenses with separate penalties, x-ather than one offense with sentencing enhancements based on a judicial finding by a preponderance of the evidence. Id. at 235, 252, 119 S.Ct. 1215. In Apprendi, however, the constitutional question was “starkly presented.” Apprendi, 530 U.S. at 476, 120 S.Ct. 2348.
[1161]*1161Charles Apprendi was convicted of possession of a firearm for an unlawful purpose, a second-degree offense under New Jersey state law that carried a penalty range of five to 10 years.3 At his sentencing, the judge sentenced him to 12 years, applying a New Jersey hate crime statute that provided for an “extended term of imprisonment” if the court found, by a preponderance of the evidence, that “[t]he defendant in committing the crime acted with a purpose to intimidate an individual or group of individuals because of race, color, gender, handicap, religion, sexual orientation or ethnicity.” N.J. Stat. Ann. § 2C:44-3(e) (West 2001). The state appeals court and the New Jersey Supreme Court affirmed Apprendi’s sentence, finding that the hate crime enhancement was a traditional sentencing factor, and, as such, was not an element of the offense that needed to be found by a jury beyond a reasonable doubt. Apprendi, 530 U.S. at 471-73, 120 S.Ct. 2348.
The United States Supreme Court reversed, holding that the increase in the statutory maximum penalty violated Ap-prendi’s constitutional rights to due process and a jury trial because it “ ‘remove[d] from the jury the assessment of facts that increase the prescribed range of penalties to which a criminal defendant is exposed.’” Id. at 490, 120 S.Ct. 2348 (quoting Jones, 526 U.S. at 252, 119 S.Ct. 1215 (Stevens, J., concurring)). The Court noted the long history of judges exercising discretion by taking various factors into consideration when imposing a sentence within statutory limits. Id. at 481, 120 S.Ct. 2348. The New Jersey statute, however, unconstitutionally permitted the judge to impose a sentence above the statutory maximum, based on a factual finding made by the judge under the preponderance of the evidence standard. Id. at 491, 120 S.Ct. 2348. The Court thus “confirm[ed] the opinion ... expressed in Jones,” that, “[ojther than the fact of a prior conviction, any fact that increases the penalty for a crime beyond the prescribed statutory maximum must be submitted to a jury, and proved beyond a reasonable doubt.”4 Id. at 490, 120 S.Ct. 2348.
We applied Apprendi in United States v. Nordby, 225 F.3d 1053 (9th Cir.2000), and held that “the amount of drugs for which a defendant is sentenced under 21 U.S.C. § 841(b)(1) is such a fact.” Id. at 1056. Nordby’s sentence therefore violated Ap-prendi because the drug quantity finding was made by the judge under the less demanding standard, and it increased the penalty beyond the statutory maximum allowable under the facts as found by the jury. Id. at 1061-62. We concluded in Nordby that we could give no “construction to the statute before us that would avoid the constitutional issue raised by Apprendi,” because Congress “clearly intended that drug quantity be a sentencing factor, not an element of the crime under § 841; the statute is not susceptible to a contrary interpretation.” Id. at 1058.
[1162]*1162II.
21 U.S.C. § 841 is part of a “significant history” of determinate-sentencing schemes permitting discretionary sentencing by judges, within limits set by legislatures, based upon sentencing factors deemed relevant by the legislature. Apprendi, 530 U.S. at 544, 120 S.Ct. 2348 (O’Connor, J., dissenting). Similar to other such schemes, see, e.g., 21 U.S.C. § 960, § 841 describes “unlawful acts,” traditionally viewed as the elements of the offense, in subsection (a), and “penalties,” traditionally viewed as sentencing factors, in subsection (b). The penalties are based on the type and quantity of drugs, although subsection (b)(1)(C) imposes a 20-year maximum sentence for an undetermined amount of schedule I or II drugs.5
Justice O’Connor’s dissent in Apprendi recognized that the majority’s “reasoning strongly suggests” that federal determinate-sentencing schemes, such as that found in § 841, are not constitutional. Apprendi 530 U.S. at 550-51, 120 S.Ct. 2348 (O’Connor, J., dissenting); see also id. at 544, 120 S.Ct. 2348 (stating that, “in light of the adoption of determinate-sentencing schemes by many States and the Federal Government, the consequences of the [majority’s] rules in terms of sentencing schemes invalidated by today’s decision will likely be severe”). Justice Breyer also expressed concern that “the majority’s rule creates serious uncertainty about the constitutionality of such statutes and about the constitutionality of the confinement of those punished under them.” Id. at 565, 120 S.Ct. 2348 (Breyer, J., dissenting). After examining § 841(b) with the usual tools of statutory construction, such as the statute’s structure and legislative history, as well as under the rule announced in Apprendi, we agree with Justices O’Con-nor and Breyer that the majority rule in Apprendi renders the determinate-sentencing scheme in § 841(b) unconstitutional.6
We note first that, as the government acknowledges, the sentence imposed by the district court constitutes error because it is longer than 20 years, the statutory maximum penalty under § 841(b)(1)(C) for a conviction with no jury determination of the quantity of drugs. We also note that, as was customary prior to Apprendi, the jury instructions given by the district court did not require the jury to find the amount of methamphetamine.7 Similarly, the jury verdict form merely stated, “guilty as charged” on each count and did not contain [1163]*1163any finding of the amount of methamphetamine. For these reasons, Buckland’s sentence violates Apprendi.
III.
Apprendi teaches us that “ ‘[i]t is unconstitutional for a legislature to remove from the jury the assessment of facts that increase the prescribed range of penalties to which a criminal defendant is exposed.’ ” 530 U.S. at 490, 120 S.Ct. 2348 (quoting Jones v. United States, 526 U.S. 227, 252, 119 S.Ct. 1215, 143 L.Ed.2d 311 (1999) (Stevens, J., concurring)). Nordby held that § 841 was not susceptible to an interpretation other than that Congress intended drug quantity to be a sentencing factor, not an element of the offense under § 841. 225 F.3d at 1058. Applying Apprendi to the statute as interpreted by Nordby, we cannot avoid the conclusion that Apprendi renders §§ 841(b)(1)(A) and (B) unconstitutional because they permit the judge to find a fact, the quantity of drugs, under the preponderance of the evidence standard, that increases the maximum penalty to which a defendant is exposed.
We begin by examining the structure of § 841.8 Subsection 841(a), entitled “Unlawful acts,” sets forth the elements of the offense, providing that “it shall be unlawful for any person knowingly or in-tentionally-(l) to manufacture, distribute, or dispense, or possess with intent to manufacture, distribute, or dispense, a controlled substance; or (2) to create, distribute, or dispense, or possess with intent to distribute or dispense, á counterfeit substance.” Subsection 841(b) is entitled “Penalties,” and it provides that “any person who violates subsection (a) of this section shall be sentenced as follows.” It then provides for penalties based upon factors traditionally determined by the sentencing judge by a preponderance of the evidence-the amounts and types of drugs, along with increased penalties if death or serious bodily injury results, or if the defendant has a prior conviction for a felony drug offense. Under this structure, only subsection (a) can be violated. Subsection (b) only provides the penalties for a violation of subsection (a).
The penalties in §§ 841(b)(1)(A) and (b)(1)(B) depend on the quantity of each drug involved; however, as stated above, § 841(b)(1)(C) provides a 20-year maximum sentence for an indeterminate amount of schedule I or II drugs (provided that the death or serious bodily injury enhancement and the prior conviction do not apply). Subsection 841(b)(1)(D) provides a five-year maximum for, inter alia, schedule III controlled substances.9 On its face, therefore, § 841 differentiates be[1164]*1164tween the elements of the offense and the prescribed penalties.
We recognize that the statute at issue in Apprendi explicitly permitted the imposition of the hate crime enhancement based upon a finding by the court by a preponderance of the evidence, whereas § 841 does not explicitly state that the court may find the drug quantity by a preponderance of the evidence. See N.J. Stat. Ann. § 2C:44-3(e). This is an insufficient basis, however, on which to distinguish § 841. The fact that the New Jersey Legislature made its intent explicit, and that Congress did not, does not give us “the prerogative to ignore the legislative will in order to avoid constitutional adjudication.” Commodity Futures Trading Comm’n v. Schor, 478 U.S. 833, 841, 106 S.Ct. 3245, 92 L.Ed.2d 675 (1986) (“CFTC ”). Nordby has already held that Congress clearly intended to allow a judge to determine drug quantity under § 841 under a preponderance of the evidence standard.10 225 F.3d at 1058. Moreover, the language of the statute, providing that “any person who violates subsection (a) of this section shall be sentenced as follows,” indicates Congress’ intent that the penalties be determined by the judge at sentencing. The structure and legislative history of § 841 further indicate Congress’ intent that the quantity of drugs be a sentencing factor, not an element of the offense.
The statute is now and always has been structured by defining the offense in subsection (a) and the penalties in subsection (b). See, e.g., Comprehensive Drug Abuse Prevention and Control Act of 1970, Pub.L. No. 91-513, § 401, 84 Stat. 1260 (codified, as amended, at 21 U.S.C. § 841). The legislative history of the statute clearly differentiates between violations and criminal penalties. See, e.g., H.R.Rep. No. 91-1444 (1970), reprinted in 1970 U.S.C.C.A.N. 4566, 4570, 4575. Particularly telling is that, in describing the penalties section, the legislative history notes that, “[t]he foregoing sentencing procedures give maximum flexibility to judges, permitting them to tailor the period of imprisonment, as well as the fine, to the circumstances involved in the individual case.” Id. at 4576 (emphasis added).
In 1970, the penalties depended on the type of drugs, rather than the amount of drugs. Pub.L. No. 91-513, § 401; see also H.R.Rep. No. 91-1444 (1970), reprinted in 1970 U.S.C.C.A.N. 4566, 4576 (stating that the penalties vary, “depending upon the danger of the drugs involved”). In 1983, however, Congress recognized that, “[wjhile it is appropriate that the relative dangerousness of a particular drug should have a bearing on the penalty for its importation or distribution, another important factor is the amount of the drug involved.” S.Rep. No. 98-225, at 255 (1984), reprinted in 1984 U.S.C.C.A.N. 3182, 3437. Congress therefore amended § 841 to provide greater penalties for offenses involving larger amounts of drugs. Id. at 258, reprinted in 1984 U.S.C.C.A.N. 3182, 3440. The drug quantity determination, therefore, was placed in the penalties section, which Congress had already described as containing sentencing procedures for the judge.11 Cf. H.R.Rep. No. 101-681(1), at [1165]*1165110 (1990), reprinted in 1990 U.S.C.C.A.N. 6472, 6514-15 (noting the need for judges to have “flexibility when fashioning a sentence” under § 841(b)).
The structure of the statute itself and the legislative history clearly evince congressional intent that drug quantity be a sentencing factor, not an element of the offense. In Apprendi, however, the Court described the distinction between elements and sentencing factors as “constitutionally novel and elusive.” 580 U.S. at 494, 120 S.Ct. 2348. We therefore examine § 841(b) in light of what the Court described as “the relevant inquiry,” that is, the effect, rather than the form, of the factor-“does the required finding expose the defendant to a greater punishment than that authorized by the jury’s guilty verdict?” Id. The answer is yes. Subsections 841(b)(1)(A) and (B) permit the judge to find a fact, the quantity of drugs, that increases the maximum sentence beyond the 20-year maximum in § 841(b)(1)(C) that may be imposed for an unspecified amount of drugs. They therefore “remove[ ] the jury from the determination of a fact that, if found, exposes the criminal defendant to a penalty exceeding the maximum he would receive if punished according to the facts reflected in the jury verdict alone.” Id. at 482-83, 120 S.Ct. 2348. The district court’s finding that Buckland was responsible for eight kilograms of methamphetamine increased his potential maximum sentence from 20 years, based on the jury finding of an unspecified amount of methamphetamine, to life imprisonment. This differential is “unquestionably of constitutional significance.” Id. at 495, 120 S.Ct. 2348 (describing the differential between a potential maximum sentence of 10 years and 20 years). Under the “relevant inquiry” set forth in Appren-di, therefore, we are unable to avoid the conclusion that § 841(b) is unconstitutional.
We further note that the Court distinguished Almendarez-Torres on the basis that recidivism, the sentencing factor at issue in Almendarez-Torres, did not relate to the commission of the offense itself, whereas the “biased purpose inquiry goes precisely to what happened in the ‘commission of the offense.’ ” Id. at 496, 120 S.Ct. 2348 (quoting Almendarez-Torres, 523 U.S. at 244, 118 S.Ct. 1219). Similarly here, the amount of drugs cannot be said to be unrelated to the commission of the offense. Rather, a large amount of drugs makes the offense more dangerous; this is precisely why Congress amended the statute to allow increased penalties depending on the amount of drugs involved. S.Rep. No. 98-225, at 255 (1984), reprinted in 1984 U.S.C.C.A.N. 3182, 3437. The amount of drugs therefore “goes precisely to what happened in the commission of the offense.” 530 U.S. at 496, 120 S.Ct. 2348 (internal quotations omitted).
We recognize the maxim that “constitutionally doubtful constructions should be avoided where ‘fairly possible.’ ” Miller v. French, 530 U.S. 327, 336, 120 S.Ct. 2246, 147 L.Ed.2d 326 (2000) (quoting Communications Workers v. Beck, 487 U.S. 735, 762, 108 S.Ct. 2641, 101 L.Ed.2d 634 (1988)). “It is equally true, however, that this canon of construction does not give a court the prerogative to ignore the legislative will in order to avoid constitutional adjudication; ‘[a]lthough this Court will often strain to construe legislation so as to save it against constitutional attack, it must not and will not carry this to the point of perverting the purpose of a statute ... ’ or judicially rewriting it.” CFTC, 478 U.S. at 841, 106 S.Ct. 3245 (quoting Aptheker v. Secretary of State, 378 U.S. [1166]*1166500, 515, 84 S.Ct. 1659, 12 L.Ed.2d 992 (1964)); see also Miller, 530 U.S. at 336, 120 S.Ct. 2246 (noting the principle that, “where Congress has made its intent clear, ‘we must give effect to that intent’ ”) (quoting Sinclair Refining Co. v. Atkinson, 370 U.S. 195, 215, 82 S.Ct. 1328, 8 L.Ed.2d 440 (1962)). We cannot, therefore, follow the lead of the Seventh Circuit, which has overruled its precedent holding that drug quantities under § 841(b) are “always a sentencing factor.” United States v. Nance, 236 F.3d 820, 825 (7th Cir.2000), petition for cert. filed (U.S. Apr. 24, 2001) (No. 00-9633); see also United States v. Westmoreland, 240 F.3d 618, 632 (7th Cir.2001) (discussing Nance). For the same reason, we cannot agree with the Seventh Circuit’s holding in United States v. Brough, 243 F.3d 1078 (7th Cir.2001), that Apprendi does not render § 841 unconstitutional.12
In Brough, the court reasoned that the statute does not explicitly state that the type and quantity of drugs are to be determined by the judge by a preponderance of the evidence. Id. at 1079. The court further reasoned that
[ijnstead the law attaches effects to facts, leaving it to the judiciary to sort out who determines the facts, under what burden. It makes no constitutional difference whether a single subsection covers both elements and penalties, whether these are divided across multiple subsections (as § 841 does), or even whether they are scattered across multiple statutes (see 18 U.S.C. §§ 924(a), 1963). Apprendi holds that the due process clauses of the fifth and fourteenth amendments make the jury the right decisionmaker (unless the defendant elects a bench trial), and the reasonable-doubt standard the proper burden, when a fact raises the maximum lawful punishment. How statutes are drafted, or implemented, to fulfil that requirement is a subject to which the Constitution does not speak.
Id.
We disagree with the Seventh Circuit for several reasons. First, although we should construe a statute to avoid “serious constitutional problems,” we cannot do so if “such construction is plainly contrary to the intent of Congress.” Edward J. DeBartolo Corp. v. Fla. Gulf Coast Bldg. & Constr. Trades Council, 485 U.S. 568, 575, 108 S.Ct. 1392, 99 L.Ed.2d 645 (1988). For the reasons already discussed, construing § 841(b) as containing elements of the offense rather than sentencing factors is “plainly contrary to the intent of Congress.” Cf. United States v. Kelly, 105 F.Supp.2d 1107, 1115 (S.D.Cal.2000) (reasoning that “congressional idleness in the face of voluminous precedent” that [1167]*1167§ 841(b) contains sentencing factors, not elements, indicates Congress’ agreement). Furthermore, we are bound by Nordby, which has already held that § 841(b) is not susceptible to the interpretation that it contains elements of the offense. See 225 F.3d at 1058.
Second, the analysis in Brough does not acknowledge the role of congressional intent in evaluating the constitutionality of a statute. Whether Congress intended drug quantity to be a sentencing factor rather than an element of the offense is integral to the question. Cf., e.g., Jones, 526 U.S. at 232, 119 S.Ct. 1215 (in construing 18 U.S.C. § 2119, the Court reasoned that “[m]uch turns on the determination that a fact is an element of an offense rather than a sentencing consideration, given that elements must be charged in the indictment, submitted to a jury, and proven by the Government beyond a reasonable doubt”). Indeed, in two cases decided shortly before Apprendi, the Supreme Court’s statutory analysis focused on determining legislative intent. See, e.g., Castillo v. United States, 530 U.S. 120, 123, 120 S.Ct. 2090, 147 L.Ed.2d 94 (2000) (identifying the question presented as “whether Congress intended the statutory references to particular firearm types in [18 U.S.C.] § 924(c)(1) to define a separate crime or simply to authorize an enhanced penalty”); Jones, 526 U.S. at 232-40, 119 S.Ct. 1215 (examining statute’s structure and history, as well as similar statutes passed by Congress, in order to determine congressional intent on whether factor was element of offense or sentencing consideration); see also Almendarez-Torres, 523 U.S. at 228, 118 S.Ct. 1219 (stating that the question of which factors are elements of an offense and which are sentencing factors is “normally a matter for Congress,” and, accordingly, looking to the statute and to congressional intent to analyze the statute). Apprendi seems to eschew the distinction between sentencing factors and elements in favor of its “relevant inquiry” of the effect of the factor; the Court, however, did not go as far as to abolish the distinction. See Ap-prendi, 530 U.S. at 494, 120 S.Ct. 2348. Moreover, even if the sentencing factor versus element distinction is not disposi-tive, § 841 violates the constitutional requirement set forth in Apprendi that a fact, other than a prior conviction, that increases the penalty for a crime beyond the statutory maximum must be submitted to the jury and proven beyond a reasonable doubt. Id. at 490, 120 S.Ct. 2348.
Nor do we think there is a middle road, by which drug quantity is sometimes an element of the offense that must be proven to the jury beyond a reasonable doubt, and sometimes a sentencing factor that the judge can decide by a preponderance of the evidence. Cf. Horton v. United States, 244 F.3d 546, 552 (7th Cir.2001) (concluding that, although drug type is not an element of the offense, it “is sometimes a factor that must be determined by a jury-when such a determination will increase the maximum penalty authorized by statute,” citing Apprendi). Regardless of whether the Supreme Court intended to abolish the distinction between offense elements and sentencing factors, the fact remains that quantity must either be submitted to the jury and proven beyond a reasonable doubt, or it is a factor that can be decided by the sentencing judge. This approach, of requiring it to be proven to the jury only if the resulting sentence will be beyond the statutory maximum, but allowing it to be decided by the judge if it is not, is unworkable. As a practical matter, the prosecutor will always have to submit drug quantity to the jury. This raises the problem articulated by Justice Breyer in Apprendi where he stated that, “to require jury consideration of all such [sentencing] factors — say, during trial where the issue is guilt or innocence— could easily place the defendant in the [1168]*1168awkward (and conceivably unfair) position of having to deny he committed the crime yet offer proof about how he committed it, e.g., T did not sell drugs, but I sold no more than 500 grams.’ ” Apprendi, 530 U.S. at 557, 120 S.Ct. 2348 (Breyer, J., dissenting); cf. U. S. v. Jackson, 207 F.3d 910 at 921 (raising a similar problem, “[i]f a jury were required to determine whether the defendant had distributed 3, 6, 49, or 52 grams of mixture or substance containing crack, its attention would be deflected from the question at once more fundamental to culpability and more manageable by a lay factfinder whether the defendant had distributed a forbidden substance”).
IV.
As noted above, Buckland’s claim is reviewed for plain error because he did not object to the district court’s determination of the drug quantity under the preponderance of the evidence standard. Fed.R.Crim.P. 52(b); Nordby, 225 F.3d at 1060. Buckland therefore must establish that there was error, that the error was plain, and that the error affected his substantial rights. Olano, 507 U.S. at 732, 113 S.Ct. 1770. Under Apprendi, the district court erred by sentencing Buck-land on the basis of a drug quantity finding that was not submitted to a jury and established beyond a reasonable doubt, and the error is plain. See Nordby, 225 F.3d at 1060. Because we conclude that §§ 841(b)(1)(A) and (B) are unconstitutional, the maximum sentence that can be imposed on Buckland for possession of an undetermined amount of methamphetamine is 20 years, under § 841(b)(1)(C). Buckland’s sentence of 27 years thus affected his substantial rights.13 Imposing a sentence that is seven years more than the maximum sentence constitutionally permitted under the facts as found by the jury undoubtedly “seriously affect[s] the fairness, integrity or public reputation of judicial proceedings.” 14 See Nordby, 225 F.3d at 1061-62.
V.
Because we conclude that §§ 841(b)(1)(A) and (B) are unconstitutional, we must consider whether they are severable from the remainder of the statute. Bd. of Natural Res. v. Brown, 992 F.2d 937, 947 (9th Cir.1993). The first question in the inquiry is whether the statute is “fully operative” after the unconstitutional provisions have been excised. Id. at 948. The elimination of §§ 841(b)(1)(A) and (B) “ ‘in no way alters the substantive reach of the statute and leaves completely unchanged its basic operation’ ” because a defendant can still be convicted under § 841(a) and sentenced under [1169]*1169§ 841(b)(1)(C) to a maximum of twenty years’ imprisonment, regardless of the amount of a schedule I or II controlled substance he or she possessed. Id. (quoting United States v. Jackson, 390 U.S. 570, 586, 88 S.Ct. 1209, 20 L.Ed.2d 138 (1968)). The second question is whether Congress would have enacted the constitutional provisions of the statute independently of the unconstitutional provisions. Id. Congress clearly would have enacted the remaining penalty provisions in § 841(b) in order for the sentencing court to sentence a defendant convicted of a violation of § 841(a). Having thus satisfied both inquiries, we conclude that §§ 841(b)(1)(A) and (B) are severable from the remainder of the statute.
CONCLUSION
The maximum sentence authorized by the jury’s verdict for an undetermined amount of methamphetamine was 20 years under § 841(b)(1)(C). Buekland’s sentence of 27 years, accordingly, was plain error, and it affected his substantial rights. We thus vacate Buckland’s sentence and remand for resentencing under § 841(b)(1)(C).
VACATED and REMANDED.