Luis Obed Rios-Quintero appeals his federal criminal convictions on charges that he possessed heroin with the intent to distribute the drug in violation of 21 U.S.C. § 841(a)(1) and that he imported heroin in violation of 21 U.S.C. §§ 952(a) and 960(a)(1). On appeal, Rios-Quintero argues that his convictions must be vacated because the district court treated the relevant quantity of heroin as a sentencing factor, rather than an as essential element of his drug trafficking offenses. The single issue presented for review is whether, in light of the Supreme Court’s recent decision in
Jones v. United States,
The impact of
Jones
upon the federal drug offenses defined in §§ 841, 952, and 960 is an important issue of first impression in our Circuit. We are not, however, at liberty to give free-ranging consideration to that issue in this appeal.
Jones
was decided after Rios-Quintero was convicted and sentenced in the district court, but before the briefs were filed in this Court. Given that timing, Rios-Quintero’s Jones-based argument that drug quantity is an essential element of his offenses that should have been charged in his indictment, submitted to the jury, and proven beyond a reasonable doubt, was not made in the district court. We are therefore constrained to review the error identified by Rios-Quintero for plain error only.
See Johnson,
Having concluded our plain error review, we hold that the impact of
Jones
is not sufficiently obvious or clear to permit this panel to deviate from this Circuit’s existing precedent characterizing drug quantity as a sentencing factor under §§ 841, 952, and 960. Stated simply, the error identified in this case is not sufficiently plain to merit relief.
See Johnson,
BACKGROUND
Rios-Quintero was arrested at the Paso Del Norte Port of Entry after more than one kilogram of heroin was found stitched into the lining of clothing he was transporting as a passenger in a taxi entering Texas from Mexico. Rios-Quintero' was subsequently charged in a two count indictment alleging in count 1 that he imported an unspecified “quantity” of heroin, in violation of 21 U.S.C. §§ 952(a) and 960(a)(1), and alleging in count 2 that he possessed an unspecified “quantity” of heroin with intent to distribute, in violation of 21 U.S.C. § 841(a)(1). The government filed a Notice of Enhanced Penalty with the indictment, stating its intent to seek enhanced penalties because Rios-Quintero possessed more than one kilogram of heroin.
At trial, Rios-Quintero’s defense was that he did not know there was heroin stitched into the clothes he was carrying. Specifically, Rios-Quintero claimed that he was carrying the clothes, which contained heroin valued between $800,000 and $900,-000, to New York City for a stranger he met in a bar in Mexico City.
Rios-Quintero did not dispute the quantity of heroin found. Indeed, his attorney conceded the quantity of heroin at issue in argument to the jury. Moreover, Rios-Quintero signed a joint stipulation providing that more than one kilogram of heroin was recovered from the clothes in his suitcase. That stipulation was read to the jury at trial and then entered into the record as one of the few exhibits submitted to the jury. The jury was instructed on the statutory language as contained in §§ 841(a), 952(a), and 960(a), without reference to the quantity of heroin or the quantity-based penalties provided in §§ 841(b) and 960(b). Rios-Quintero did not object to the jury charge, and the jury eventually convicted Rios-Quintero on both counts.
Rios-Quintero was sentenced on the basis of the ten year to life range required by §§ 841(b)(1)(A) and 960(b)(1)(A) for offenses involving at least one kilogram of heroin. Rios-Quintero’s guideline range, based upon the same quantity, was 121-151 months. 1 The district court responded to Rios-Quintero’s plea for leniency within the range by sentencing Rios-Quintero to two 121 month concurrent sentences, to be followed by five years of supervised release. Rios-Quintero did not object to the quantity determination of more than one kilogram, as listed in the presentence report and used for sentencing. Rios-Quintero thereafter filed a timely notice of appeal from his conviction and sentence.
DISCUSSION
I.
Rios-Quintero maintains that his drug convictions must be vacated because drug quantity is an essential element of his offenses, which was not charged in the indictment, submitted to the jury for decision, or proven beyond a reasonable doubt. Rios-Quintero premises his argument upon a broad reading of the Supreme Court’s recent decision in
Jones v. United States,
[Ujnder the Due Process Clause of the Fifth Amendment and the notice and *217 jury trial guarantees of the Sixth Amendment, any fact (other than conviction) that increases the maximum penalty for a crime must be charged in an indictment, submitted to a jury, and proven beyond a reasonable doubt.
Id. at 1224 n. 6. Drug quantity clearly increases both the minimum and maximum statutory penalties defined by §§ 841(b) and 960(b). Thus, Rios-Quintero argues that Jones sets forth a new rule requiring that drug quantity be charged in his indictment, submitted to his jury, and proven beyond a reasonable doubt.
The government interprets
Jones
quite narrowly, responding that
Jones
merely addressed the parameters of an unresolved constitutional issue, rather than announcing any new constitutional rule which Rios-Quintero would be entitled to take advantage of in this appeal. Indeed, the government maintains that no constitutional lessons may be drawn from
Jones
at all, offering a number of superficially persuasive quotes from the case.
See Jones,
II.
Prior to
Jones,
this Court routinely held that drug quantity is a sentencing factor that need not be included in the indictment, submitted to the jury, or proven beyond a reasonable doubt.
See, e.g., United States v. Hare,
Our Court has not yet examined the effect of
Jones
on the federal drug offenses defined by 21 U.S.C. §§ 841, 952, and 960. The Court has, however, applied
Jones
to arguments involving different statutory provisions.
See Bledsue v. Johnson,
Clearly, this Court’s precedent does not limit
Jones
to the car-jacking statute. In
Nunez,
the Court indicated its willingness to derive broad constitutional lessons from
Jones
by stating that
“Jones
teaches us to avoid encroaching on a defendant’s Fifth Amendment rights by construing statutes setting out separate punishments as creating separate, independent criminal offenses rather than a single criminal offense with different punishments.”
Nunez,
[TJhe state would violate Bledsue’s Sixth Amendment jury trial rights if it proved that he possessed less than 28 grams, then convinced the court to impose a heavier sentence based on a non-jury finding that he possessed more than 28 grams. In other words, because the amount of the controlled substance possessed determines the severity of the punishment, the amount possessed is a jury question and an essential element under Jones and Jackson [v. Johnson,150 F.3d 520 (5th Cir.1998), cert. denied, — U.S. -,119 S.Ct. 1339 ,143 L.Ed.2d 503 (1999)].
*219
Bledsue,
Nonetheless, and without regard to how these difficult constitutional issues may ultimately be resolved in a case in which error was preserved, we cannot conclude that the Supreme Court’s identification of unresolved constitutional issues in
Jones
is sufficiently plain or obvious with respect to its application to the federal drug trafficking statutes to permit a finding of remediable plain error in this case. Even if we were to conclude that
Jones
gives rise to “grave doubt” about the constitutionality of treating drug quantity as a sentencing factor,
see Jones,
Of equal importance,
Jones
identified the constitutional guarantees implicated when an essential element of an offense is impermissibly treated as a sentencing factor. The
Jones
Court placed an emphasis on (1) fair notice of the charge, (2) submission to and a finding by the relevant fact finder, and (3) proof beyond a reasonable doubt.
See Jones,
In addition, Rios-Quintero stipulated that the offense involved more than one kilogram of heroin and that evidence was submitted to the jury. Rios-Quintero’s attorney conceded the relevant quantity in argument before the jury. Thus, the issue of quantity was undisputed. The undisputed and well-documented quantity of heroin at issue, when combined with Rios-Quintero’s stipulation and his concession at trial before the jury, is adequate to support the proposition that the government met its burden of proving quantity, without regard to which standard of proof is applied. Similarly, the record evidence unequivocally supports an affirmative jury finding on the issue of quantity. In sum, Rios-Quintero cannot argue that he was prejudiced by the government’s failure to submit an issue that was both uncontested and conclusively established.
See Johnson,
We hold only that Jones does not support a determination of plain error in this case. We are not presented with and do not decide the more complex issue of whether the Supreme Court’s decision in Jones, that there are grave doubts about the constitutionality of statutory language defining facts that increase the maximum penalty as sentencing factors rather than essential elements, should have any affect upon our pre-Jones precedent construing 21 U.S.C. §§ 841, 952, and 960. Such a contention would require a defendant’s inclusion of fair notice arguments in a motion to quash an indictment that does not list quantity, and a defendant’s objection at trial that quantity is an essential element *220 of conviction under these statutes. But such contentions will certainly need to be presented to and preserved in the district court before it may be properly considered by this Court on appeal.
CONCLUSION
The district court is AFFIRMED.
Notes
. The presentence report used an offense level of 32 and a criminal history category of I.
