Admitted Drug Quantity May Determine the Guideline Range When the Sentence Remains Within the Indictment’s Statutory Range

Case: United States v. Mario Rivera

Court: United States Court of Appeals for the Eleventh Circuit

Date: October 1, 2026

Disposition: Sentence affirmed

Introduction

Mario Clifford Rivera pleaded guilty to conspiring to distribute and possess with intent to distribute, and to distributing, 400 grams or more of fentanyl. That quantity placed his offenses within 21 U.S.C. § 841(b)(1)(A)(vi), which carries a mandatory minimum sentence of ten years and a maximum of life imprisonment.

The district court imposed a 210-month sentence after using a larger drug quantity—3,230 grams of fentanyl—to calculate Rivera’s advisory Sentencing Guidelines range. Rivera argued on appeal that reliance on a quantity greater than the indictment’s “400 grams or more” allegation constructively amended the indictment in violation of Apprendi v. New Jersey and Alleyne v. United States. He also sought an opportunity, if resentencing were ordered, to challenge prior convictions used in calculating his criminal history category.

The Eleventh Circuit rejected both arguments. It held that the indictment established the statutory sentencing range, while Rivera’s admitted conduct could determine his position within that range under the Guidelines. Because his 210-month sentence remained within the authorized range, no constructive amendment occurred.

Summary of the Opinion

  • The indictment properly alleged the statutory threshold of 400 grams or more of fentanyl.
  • That allegation authorized a sentence from ten years to life imprisonment under § 841(b)(1)(A)(vi).
  • Rivera admitted in connection with his guilty plea that the offense involved between 1.2 and 4 kilograms of fentanyl, while the undisputed presentence investigation report attributed 3,230 grams to him.
  • The district court could use that admitted and uncontested quantity to calculate the advisory Guidelines range.
  • The resulting 210-month sentence did not exceed the statutory maximum or fall outside the statutory range authorized by the charged offense.
  • Rivera’s withdrawal of his criminal-history objection permitted the district court to rely on the presentence report’s uncontested calculation of 14 criminal-history points and criminal history category VI.

Analysis

1. Standard of Review and Preservation

The court began with the requirement that sentencing objections be presented at the original sentencing hearing. Under United States v. Canty, litigants must object to factual findings, legal conclusions, and the manner in which the sentence is imposed. United States v. Beckles establishes that an unpreserved objection to the presentence investigation report is reviewed only for plain error.

As explained in United States v. Turner, plain-error relief requires Rivera to establish: an error; that the error was plain; and that it affected his substantial rights. Even then, correction is discretionary and generally requires an error seriously affecting the fairness, integrity, or public reputation of judicial proceedings. Rivera could not pass the first step because the district court committed no sentencing error.

2. Constructive Amendment of an Indictment

Relying on United States v. Madden, the court explained that a constructive amendment occurs when the essential elements of the charged offense are altered so as to broaden the possible bases for conviction beyond those authorized by the indictment.

Rivera’s conviction, however, remained based on the same offense charged by the grand jury: a fentanyl offense involving 400 grams or more. The larger quantity used at sentencing did not create a different crime or expose him to a statutory range broader than the one charged. It merely informed the advisory calculation of a sentence within the already authorized ten-years-to-life range.

3. Application of Apprendi and Alleyne

Apprendi v. New Jersey requires any fact—other than a prior conviction—that increases the statutory maximum penalty to be submitted to a jury and proved beyond a reasonable doubt. Alleyne v. United States extends that rule to facts increasing a mandatory minimum sentence.

The 400-gram threshold was therefore an element because it triggered both a ten-year mandatory minimum and a maximum of life imprisonment. That element was included in Rivera’s indictment and admitted through his guilty plea. The additional quantity did not raise either statutory boundary. Consequently, it could be used to select a Guidelines range within those boundaries without violating Apprendi or Alleyne.

The opinion draws a critical distinction between:

  • Statutory sentencing facts: Facts that change the legally authorized minimum or maximum and therefore must be charged and admitted or proved to a jury.
  • Guidelines sentencing facts: Facts used to calculate an advisory range within the statutory limits, which may be found at sentencing from admissible and reliable sources.

4. Reliance on Admissions and the Presentence Report

Under United States v. Wilson, a sentencing court may make findings based on trial evidence, admissions accompanying a guilty plea, undisputed statements in the presentence report, and evidence introduced at sentencing. Rivera admitted that his offense involved between 1.2 and 4 kilograms of fentanyl, and he did not dispute the report’s attribution of 3,230 grams.

Those admissions supplied an independent basis for the Guidelines calculation. The district court was not treating the larger amount as a new statutory element; it was using Rivera’s admitted conduct to determine the appropriate sentence within the statutory range.

5. Sufficiency of the Indictment

Federal Rule of Criminal Procedure 7(c)(1) requires an indictment to identify the law allegedly violated. Under United States v. Walker, an indictment ordinarily is sufficient when it tracks the statutory language and provides enough factual context to notify the defendant of the charged offense.

Rivera’s indictment tracked § 841(b)(1)(A)(vi) by alleging 400 grams or more of fentanyl—the statute’s highest threshold category. It was not required to allege the exact 3,230-gram quantity because that additional amount did not alter the applicable statutory range.

6. Criminal History Calculation

Rivera’s second argument concerned prior convictions used to calculate his criminal history. His attorney had withdrawn the relevant objection at sentencing.

United States v. Bennett permits a sentencing court to rely on undisputed facts in a presentence report and treats failure to object to reported prior convictions as an admission of those facts. Similarly, United States v. Wade holds that failing to object to the district court’s factual findings generally precludes a later appellate claim that those findings were erroneous.

The withdrawal therefore left the presentence report’s calculation uncontested: 14 criminal-history points and category VI. Rivera conceded that he could not establish plain error. Because the court rejected his constructive-amendment claim, there was also no independent basis for remanding the case and reopening the criminal-history issue.

7. Technical Inconsistencies in the Opinion

The opinion contains apparent drafting inconsistencies concerning the Guidelines provisions. It initially states that § 2D1.1(c)(5) provides level 30 for 400 grams to 1.2 kilograms and that § 2D1.1(c)(4) provides level 32 for 1.2 to 4 kilograms. Later, it refers to Rivera as having been sentenced under § 2D1.1(c)(5) at level 32 and also describes § 2D1.1(c)(4) as covering 1.5 to 4 kilograms. The opinion also cites United States v. Madden to page numbers outside the reporter citation previously given.

These appear to be typographical or citation errors rather than substantive ones. The court’s essential conclusion is clear: Rivera’s admitted 3,230 grams supported base offense level 32, and his ultimate sentence remained within the statutory range authorized by the indictment.

Precedents Cited

United States v. Canty
Requires parties to raise sentencing objections at the initial sentencing hearing.
United States v. Beckles
Applies plain-error review to unpreserved objections to the presentence investigation report.
United States v. Turner
Supplies the four-part framework governing plain-error relief.
United States v. Madden
Defines constructive amendment as an alteration broadening the possible bases for conviction beyond the indictment.
Apprendi v. New Jersey
Requires jury determination of facts increasing the statutory maximum, except the fact of a prior conviction.
Alleyne v. United States
Requires facts increasing a statutory mandatory minimum to be treated as offense elements.
United States v. Wilson
Identifies the evidentiary sources a sentencing court may use in making factual findings.
United States v. Walker
Recognizes the sufficiency of an indictment that tracks the statute and gives adequate notice of the offense.
United States v. Bennett
Allows reliance on undisputed presentence-report facts and treats failure to object as an admission.
United States v. Wade
Limits appellate challenges to factual findings that were not contested in the district court.

Complex Concepts Simplified

Constructive Amendment

A constructive amendment occurs when the prosecution or court effectively changes the charged crime without obtaining a new grand-jury indictment. Merely using more detailed facts to calculate a sentence for the same charged crime is not necessarily an amendment.

Statutory Range Versus Guidelines Range

The statutory range establishes the legal minimum and maximum sentence. The Sentencing Guidelines recommend where the sentence should fall within that range. Here, the indictment authorized ten years to life; the higher admitted quantity affected only the advisory recommendation within that range.

Plain Error

Plain-error review is a demanding standard applied when an issue was not properly preserved below. An appellant must show an obvious legal error that affected the outcome and seriously undermined the fairness or integrity of the proceedings.

Presentence Investigation Report

The presentence report provides the sentencing court with information about the offense, the defendant’s background, prior convictions, and the applicable Guidelines. Facts not specifically disputed generally may be accepted as true.

Potential Impact

The opinion reinforces that a drug indictment need not allege the precise quantity later used for an advisory Guidelines calculation, provided the indictment alleges the threshold necessary to authorize the applicable statutory range and the sentence remains within that range. Guilty-plea admissions and uncontested presentence-report facts may support a more specific quantity finding at sentencing.

The decision also underscores the practical importance of preserving objections. Defendants who withdraw or fail to make specific objections to drug quantities or criminal-history facts risk having those facts treated as admitted and face the restrictive plain-error standard on appeal.

Because the opinion is designated “Not for Publication,” it does not purport to establish a broad new binding rule. Its principal value is as an application of established Eleventh Circuit and Supreme Court doctrine to the distinction between statutory elements and advisory Guidelines facts.

Conclusion

United States v. Mario Rivera confirms that using a drug quantity greater than the threshold stated in an indictment does not constructively amend the indictment when the greater quantity is admitted, affects only the advisory Guidelines calculation, and produces a sentence within the statutory range authorized by the charged offense. It also illustrates that uncontested presentence-report findings—including criminal-history calculations—may be relied upon at sentencing and are exceptionally difficult to challenge for the first time on appeal.