Case Treatment Classification Guide

Definitive Reference for Attorney-Editors Performing Citator Analysis

Version 1.0 — February 2026

Classification Authority: Legawrite.AI

Editorial Standards Division

Table of Contents

1. Purpose & Scope
2. First Principles: What Are We Actually Classifying?
3. The Anatomy of a Holding
4. Procedural Posture & Standard of Review: Why They Matter
5. Negative Treatments
6. Cautionary / Warning Treatments
7. Positive Treatments
8. Neutral / Informational Treatments
9. Special Classification Scenarios
10. Decision Trees & Flowcharts
11. Common Errors & Pitfalls
12. Worked Examples
13. Glossary

1. Purpose & Scope

This guide provides the authoritative, comprehensive framework for classifying the treatment of judicial opinions in our citator system. Every classification you apply will be relied upon by attorneys making litigation strategy decisions, academics performing legal research, and judges evaluating the weight of authority. A misclassification can lead to an attorney citing dead law in a brief or, conversely, abandoning a perfectly valid argument because they believe its supporting authority has been undermined.

Your classifications must answer one question for the end user: “Can I still rely on this case, and if so, to what extent?”

1.1 Governing Philosophy

When in doubt, over-flag rather than under-flag. It is far less harmful for a researcher to investigate a flagged case and find it still valid than it is for a researcher to rely on a case that has been silently gutted. Our system should be conservative in clearing cases and aggressive in surfacing potential problems.

1.2 Unit of Classification

You are classifying the treatment of specific holdings, not entire cases. A single citing opinion may overrule one holding of a cited case, distinguish a second holding, and follow a third — all within the same opinion. Each treatment relationship must be separately classified.

2. First Principles: What Are We Actually Classifying?

Every classification captures a directional relationship between two opinions:

• Cited Case (Target Case): The earlier opinion whose validity we are tracking.
• Citing Case (Treatment Source): The later opinion that references, applies, rejects, or otherwise engages with the cited case.

The classification describes what the citing case did to the cited case’s authority. It does not describe what the citing case did in general, and it does not describe the outcome of the citing case on its own merits.

2.1 The Three Dimensions of Every Classification

Every treatment must be evaluated along three axes:

1. Scope: Does the treatment affect the entire cited case, a specific holding, a specific factual application, or mere dicta?
2. Severity: How much damage (or support) does the treatment inflict on the cited case’s authority?
3. Mechanism: By what legal mechanism does the treatment operate (direct appellate reversal, coordinate court disagreement, legislative supersession, doctrinal shift, factual distinction, etc.)?

3. The Anatomy of a Holding

Before you can classify treatment, you must correctly identify what constitutes a “holding” versus other components of a judicial opinion.

3.1 Holding

The holding is the court’s resolution of a specific legal question that was necessary to the disposition of the case before it. A holding has three components:

• The legal rule or standard the court applied or established.
• The material facts to which the rule was applied.
• The conclusion reached by applying the rule to those facts.

A holding is binding precedent within the court’s jurisdiction.

3.2 Dicta (Obiter Dictum)

Dicta are statements in an opinion that were not necessary to the court’s resolution of the issues before it. This includes hypothetical discussions, commentary on issues not raised by the parties, observations about how the court might rule in different factual circumstances, and legal analysis that, even if removed entirely, would not change the outcome.

Classification note: Dicta cannot be “overruled” in the strict sense because they were never binding. However, dicta from higher courts (especially the U.S. Supreme Court) can carry enormous persuasive weight, and when a later court expressly repudiates such dicta, this is a classifiable event. Use DICTA_QUESTIONED or DICTA_DISAPPROVED rather than OVERRULED.

3.3 Alternative Holdings

When a court provides two independent grounds for its decision (“We hold X for reason A. We also independently hold X for reason B.”), both are holdings. Neither is dicta. A later case that undermines Reason A but leaves Reason B intact has weakened but not destroyed the cited case. Classify the treatment as to each holding separately.

3.4 Holdings at Different Levels of Generality

A single holding can be read broadly or narrowly. For example, Miranda v. Arizona can be read as holding (broadly) that the Fifth Amendment requires procedural safeguards during custodial interrogation, or (narrowly) that the specific four-part warning described in the opinion is constitutionally required. Later cases may undermine the broad reading while preserving the narrow one, or vice versa. Always classify the treatment at the level of generality at which the citing court engages with the cited case.

4. Procedural Posture & Standard of Review: Why They Matter

4.1 Why Procedural Posture Affects Classification

The procedural posture of both the cited case and the citing case fundamentally determines what a “disagreement” means.

Example: If the cited case survived a motion to dismiss (12(b)(6)), the court only held that the complaint stated a plausible claim. If a later case grants summary judgment against a similar claim, this is not an overruling — the later court is answering a completely different procedural question (whether there is a genuine dispute of material fact), which presupposes a higher evidentiary burden. Classify this as DISTINGUISHED on procedural posture, not as any form of negative treatment on the merits.

Example: If the cited case denied a preliminary injunction (finding no likelihood of success on the merits), and a later case in the same jurisdiction grants a preliminary injunction on the same legal theory, this may reflect different facts, a different evidentiary record, or a shift in the law — but it is generally not an overruling because preliminary injunction rulings are inherently provisional.

4.2 Standard of Review and Appellate Treatment

When the citing case is an appellate opinion reviewing the cited case (i.e., a direct appeal), the standard of review determines the meaning of the appellate court’s action:

Standard of ReviewWhat It ReviewsReversal MeansClassification ImpactDe novoPure legal questions, statutory interpretation, constitutional lawThe appellate court disagrees with the lower court’s legal conclusionClassify as REVERSED on the specific legal holdingAbuse of discretionProcedural rulings, evidentiary decisions, discovery, sanctionsThe lower court's decision was so unreasonable no rational judge could have reached itClassify as REVERSED but note the narrow scope — the legal standard itself may be undisturbedClear errorFactual findings in bench trialsThe appellate court has a definite and firm conviction the factual finding was wrongClassify as REVERSED on fact-finding only; legal holdings survive unless separately addressedSubstantial evidenceAgency fact-findingThe agency's finding lacked any reasonable evidentiary basisSame as clear error — legal framework typically survivesReasonableness / ChevronAgency legal interpretationsThe agency's interpretation was unreasonableClassify carefully — the court may be rejecting the agency's reading, not the prior judicial opinion

Critical rule: When an appellate court reverses on factual grounds under clear error or abuse of discretion, do not classify the legal holdings of the reversed case as overruled. The law announced by the lower court may be perfectly correct; the lower court simply got the facts wrong. The legal holdings survive and may continue to be cited.

4.3 Partial Reversals and Affirmances

Appellate courts frequently affirm in part and reverse in part. Each component of the disposition must be separately classified:

• Holdings that were affirmed → AFFIRMED
• Holdings that were reversed on de novo review → REVERSED
• Holdings that were reversed on abuse of discretion → REVERSED with scope notation
• Holdings that were vacated and remanded for further proceedings → VACATED (see Section 5)
• Holdings not addressed by the appellate court → No treatment (the holding stands by default)

5. Negative Treatments

Negative treatments indicate that the cited case’s authority has been diminished, eliminated, or called into serious question. These are the most consequential classifications and must be applied with precision.

5.1 OVERRULED

Definition: A court with the authority to do so has expressly declared that a prior holding of the cited case is no longer good law.

Requirements — ALL must be met:

1. Hierarchical authority: The overruling court must have the power to overrule the cited case. This means:

• A court can overrule its own prior decisions (e.g., the Supreme Court overruling its own prior case; a state supreme court overruling its own prior case).
• A higher court in the same judicial hierarchy can overrule a lower court.
• A court cannot overrule a coordinate court (e.g., the Fifth Circuit cannot overrule the Ninth Circuit; a New York trial court cannot overrule a California trial court).
• A court cannot overrule a court in a different judicial system (e.g., a federal circuit court cannot overrule a state supreme court on questions of state law, and vice versa on questions of federal law — unless the federal court is the U.S. Supreme Court).

1. Express repudiation: The overruling must be explicit. The court must clearly indicate that it is overruling, abrogating, or repudiating the prior holding. Implicit disagreement — even strong implicit disagreement — is not overruling. (See ABROGATED for implicit overruling.)
2. Holding, not dicta: The portion of the cited case being overruled must have been a holding, not dicta.
3. Direct engagement: The overruling court must directly engage with the cited case. A court that announces a new rule that is logically inconsistent with a prior case but never mentions the prior case has not “overruled” it. (See ABROGATED or SUPERSEDED_BY_STATUTE.)

Scope modifiers:

• OVERRULED — The cited case is overruled in its entirety or on its central holding.
• OVERRULED_IN_PART — One or more holdings are overruled, but other holdings survive.
• OVERRULED_ON_OTHER_GROUNDS — The cited case is overruled, but the specific holding for which it is commonly cited may survive. (Use with caution; verify which holding the user is likely relying on.)

Common misclassifications to avoid:

• A circuit split is not an overruling. If the Seventh Circuit reaches the opposite conclusion from the Third Circuit, the Third Circuit case is not overruled — it remains good law in the Third Circuit.
• A denial of certiorari is not an overruling and carries no precedential weight.
• A legislative override is not an overruling. (See SUPERSEDED_BY_STATUTE.)
• A case that “calls into question” or “casts doubt on” a prior holding without expressly overruling it should be classified as QUESTIONED or UNDERMINED, not OVERRULED.

5.2 ABROGATED

Definition: A holding of the cited case has been effectively overruled by necessary implication — that is, a court with authority has adopted a legal rule or standard that is logically incompatible with a holding of the cited case, even though the court did not expressly state that it was overruling the cited case.

This is the classification for implicit overruling.

Requirements:

1. The abrogating court must have hierarchical authority over the cited case (same rules as OVERRULED).
2. The new rule must be logically incompatible with the cited case’s holding — not merely in tension, not merely different in emphasis, but fundamentally irreconcilable. If both rules can coexist, even uncomfortably, this is not abrogation.
3. The abrogation must be a necessary consequence of the new holding, not a speculative inference.

Key distinction from OVERRULED: The difference is purely one of explicitness. If the abrogating court says “We overrule Smith,” classify as OVERRULED. If the abrogating court adopts a rule that makes Smith logically impossible to follow but never mentions Smith, classify as ABROGATED.

Subtype:

• ABROGATED_BY_STATUTE — A legislature has enacted a statute that is logically incompatible with the cited case's holding. The statute did not expressly target the cited case but its enactment necessarily renders the holding inoperative.

Common misclassifications to avoid:

• Do not use ABROGATED for cases that are merely "in tension" with a new rule. Tension ≠ incompatibility. Use UNDERMINED for tension.
• Do not use ABROGATED when the new authority is from a coordinate court. A coordinate court cannot implicitly overrule another coordinate court.

5.3 REVERSED

Definition: The cited case was reversed on direct appeal by a higher court in the same case.

Requirements:

1. The citing opinion must be in the same case (same parties, same docket — or a consolidated companion case).
2. The reversal must come from a court with direct appellate jurisdiction over the court that issued the cited opinion.

Scope modifiers:

• REVERSED — Complete reversal of the judgment below.
• REVERSED_IN_PART — Partial reversal (some holdings affirmed, some reversed).
• REVERSED_AND_REMANDED — Reversed with instructions for further proceedings below.
• REVERSED_ON_OTHER_GROUNDS — The judgment is reversed, but on a ground different from the one the cited case is commonly cited for. The commonly cited holding may survive as persuasive authority even though the judgment was reversed.

Critical nuance: A reversal destroys the judgment but does not necessarily destroy the reasoning. If a trial court’s opinion contains a well-reasoned analysis of Issue A, and the appellate court reverses solely on Issue B (never reaching Issue A), the trial court’s analysis of Issue A may continue to carry persuasive authority. Classify the specific holding on Issue B as REVERSED. Do not classify the analysis of Issue A as reversed.

5.4 VACATED

Definition: The cited case’s judgment has been set aside — rendered a legal nullity — by a higher court or by operation of law.

Key distinction from REVERSED: A vacated opinion has been erased from the record. It is as if the opinion was never issued. A reversed opinion still “exists” — its reasoning may still be citable as persuasive authority. A vacated opinion, in theory, should not be cited at all.

Common scenarios:

• Vacated and remanded for further proceedings.
• Vacated as moot (e.g., the parties settled, the controversy became moot after a change in circumstances).
• Vacated pursuant to a settlement agreement.
• Vacated by the Supreme Court and remanded for reconsideration in light of a new intervening decision (“GVR” — grant, vacate, remand).

GVR orders deserve special attention: When the Supreme Court GVRs a case, the lower court opinion is vacated, but the Supreme Court has not expressed any view on the merits. The lower court may, on remand, reach exactly the same result. Classify as VACATED with a notation that the case is pending reconsideration.

Vacatur by settlement: Some circuits (particularly the Second Circuit, following Bancec) will vacate lower court opinions at the parties’ request as part of a settlement. This is controversial — it erases precedent for private convenience. Classify as VACATED regardless of the policy debate.

5.5 SUPERSEDED_BY_STATUTE

Definition: A legislative body has enacted a statute, regulation, or constitutional amendment that directly and expressly overrides the holding of the cited case.

Requirements:

1. The legislative action must be responsive to the cited case — it must have been enacted to change the legal rule the cited case established or applied.
2. The legislative action must be express — the statute’s text or legislative history must make clear that it is intended to change the rule from the cited case.

Key distinction from ABROGATED_BY_STATUTE: SUPERSEDED_BY_STATUTE is for express legislative overrides. ABROGATED_BY_STATUTE is for situations where a statute impliedly renders a holding inoperative without expressly targeting it.

Important caveat: Even when a case is superseded by statute, the case may retain value for:

• Interpreting the prior version of the statute (for cases arising under the old law).
• Understanding the legislative intent behind the new statute (courts often look to the superseded case to understand what problem the legislature was trying to fix).
• Legal principles that transcend the specific statutory text.

5.6 OVERRULED_BY_REGULATION

Definition: An administrative agency, acting within its delegated authority, has promulgated a regulation that directly and expressly overrides the holding of the cited case.

Note: This classification should be used cautiously and only where the agency clearly has the authority to override the judicial interpretation. Post-Loper Bright (2024), this category may apply less frequently, as courts are no longer required to defer to agency interpretations of ambiguous statutes.

6. Cautionary / Warning Treatments

These treatments indicate that the cited case’s authority has been weakened, questioned, or limited — but not eliminated. The case remains citable but should be used with caution.

6.1 QUESTIONED

Definition: A court has expressly questioned the continuing validity or correctness of the cited case’s reasoning or holding, without going so far as to overrule or refuse to follow it.

Typical language: “We have doubts about the reasoning in Smith…” / “The continued vitality of Smith is questionable after…” / “Smith’s analysis has been called into question…” / “We need not decide today whether Smith was correctly decided…”

Key distinction from OVERRULED: The questioning court declines to take the final step of actually overruling the case. The cited case remains technically good law, but a reader should be aware that its foundation is shaky.

Key distinction from CRITICIZED: QUESTIONED targets the validity of the holding. CRITICIZED targets the quality of reasoning but may not question whether the result was correct.

6.2 CRITICIZED

Definition: A court has expressly criticized the reasoning, logic, or methodology of the cited case, without questioning whether the ultimate holding was correct.

Typical language: “While we reach the same result as Smith, we find its reasoning unpersuasive…” / “The analysis in Smith is flawed because…” / “Smith failed to account for…”

Note: A case can be simultaneously FOLLOWED (on its holding) and CRITICIZED (on its reasoning). These are not contradictory.

6.3 UNDERMINED

Definition: The cited case’s authority has been implicitly weakened by developments in the law, even though no court has expressly questioned or overruled it.

This is the classification for gradual doctrinal erosion.

Typical scenarios:

• The legal framework on which the cited case relied has shifted substantially. The cited case applied a test that has since been modified. No court has said the cited case is wrong, but its reasoning no longer aligns with current doctrine.
• A higher court has issued a decision that is “in tension” with the cited case — not logically incompatible (which would be ABROGATED) but difficult to reconcile.
• Multiple courts have declined to follow the cited case’s approach, creating a trend away from the cited case’s position, even though no single court has overruled it.

Key distinction from ABROGATED: ABROGATED requires logical incompatibility. UNDERMINED requires only significant tension or erosion. If you can construct a plausible (even if strained) reading under which both the cited case and the undermining authority can coexist, use UNDERMINED, not ABROGATED.

6.4 LIMITED

Definition: A court has restricted the cited case’s holding to its specific facts or to a narrower legal principle than the cited case appeared to announce.

Typical language: “Smith is limited to its facts…” / “We read Smith narrowly to apply only where…” / “Smith does not control where the circumstances differ in that…”

Key distinction from DISTINGUISHED: LIMITED narrows the cited case as a matter of law — it declares that the cited case's holding is categorically confined to a specific set of circumstances. DISTINGUISHED is a factual determination that the cited case does not apply to the case at hand because the facts are materially different. A case that has been LIMITED has lost legal territory permanently. A case that has been DISTINGUISHED has simply been found inapplicable to one set of facts.

6.5 DISTINGUISHED

Definition: A court has determined that the cited case is factually or legally inapplicable to the case before it because of material differences.

This is the most common treatment classification and the most frequently misapplied.

Requirements:

1. The distinguishing court must identify specific material differences between the cited case and the case at hand.
2. The distinguishing court must explain why those differences are legally significant — i.e., why they require a different result.

Important: Distinguishing is not negative treatment. It is neutral. A distinguished case remains fully valid and authoritative for the facts and legal context in which it was decided. It simply does not govern the new situation.

However, when a case is distinguished repeatedly by many courts, and the distinctions appear to be pretextual (i.e., courts are straining to avoid following the case rather than genuinely finding factual differences), this pattern may warrant an UNDERMINED classification on the cited case even though no individual distinguishing opinion constitutes negative treatment.

6.6 DECLINED_TO_EXTEND

Definition: A court has refused to extend the cited case’s holding to a new context that the cited case did not directly address.

Key distinction from DISTINGUISHED: DISTINGUISHED means the facts are different. DECLINED_TO_EXTEND means the citing court considered applying the cited case's principle to a new area of law or a new factual category and affirmatively chose not to.

6.7 DECLINED_TO_FOLLOW

Definition: A court has expressly refused to follow the cited case, but lacks the authority to overrule it.

Typical scenarios:

• A federal district court declines to follow a sister district court’s opinion.
• A state trial court declines to follow a sister trial court’s opinion.
• A court in one jurisdiction declines to follow a persuasive (but not binding) opinion from another jurisdiction.
• A panel of a circuit court declines to follow persuasive authority from another circuit.

Key distinction from OVERRULED: The declining court lacks overruling authority. The cited case remains good law in its own jurisdiction.

Important: Under most circuits’ rules, a panel of a circuit court cannot decline to follow a prior published panel opinion from the same circuit. Only the en banc court (or an intervening Supreme Court decision) can override a prior panel opinion. If a panel purports to decline to follow a prior same-circuit panel opinion, flag this as potentially improper and classify carefully.

6.8 NOT_FOLLOWED

Definition: A court has reached a contrary result on the same legal question without expressly engaging with the cited case — i.e., the court was apparently aware of the cited case but chose not to address it.

This is weaker than DECLINED_TO_FOLLOW because the citing court did not expressly confront the disagreement.

7. Positive Treatments

7.1 FOLLOWED

Definition: A court has applied the cited case’s holding as controlling or binding authority to reach its decision.

Requirements:

1. The citing court must actually apply the holding — not merely cite the case in a string citation or in passing.
2. The holding must be a material basis for the citing court’s decision.

7.2 AFFIRMED

Definition: The cited case was affirmed on direct appeal by a higher court in the same case.

Scope modifiers:

• AFFIRMED — Complete affirmance.
• AFFIRMED_IN_PART — Partial affirmance (some holdings affirmed, some reversed).
• AFFIRMED_ON_OTHER_GROUNDS — The judgment is affirmed, but the appellate court relies on different reasoning. The original reasoning may not be endorsed.

Critical nuance on AFFIRMED_ON_OTHER_GROUNDS: When an appellate court affirms on other grounds, it is not endorsing the lower court’s reasoning. The lower court’s legal analysis should be treated cautiously — it reached the right result for the wrong reason (at least in the appellate court’s view). Researchers should not rely on the lower court’s reasoning as if it had been affirmed.

7.3 APPROVED

Definition: A higher court has expressly endorsed the reasoning or holding of the cited case, even outside the context of a direct appeal.

Typical scenario: The U.S. Supreme Court, in an unrelated case, says “We agree with the approach taken in Smith v. Jones, 500 F.3d 100 (3d Cir. 2007).”

7.4 ADOPTED

Definition: A court has adopted the cited case’s reasoning or test as its own, typically where the cited case is from another jurisdiction or a lower court in a different case.

7.5 HARMONIZED

Definition: A court has reconciled the cited case with apparently conflicting authority, explaining how both cases can coexist.

8. Neutral / Informational Treatments

8.1 CITED

Definition: The citing case references the cited case without applying, distinguishing, criticizing, or otherwise engaging with it in a substantive way. This includes string citations, parenthetical references, and passing mentions.

8.2 DISCUSSED

Definition: The citing case substantively discusses the cited case’s facts, reasoning, or holding, but does so in a neutral, expository manner — neither applying it as authority nor criticizing it.

8.3 EXPLAINED

Definition: The citing case uses the cited case to illustrate a legal principle or provide background without relying on it as authority.

9. Special Classification Scenarios

9.1 En Banc Rehearings

When a circuit court grants rehearing en banc, the panel opinion is automatically vacated in most circuits. Classify the panel opinion as VACATED by the en banc order, regardless of whether the en banc court reaches the same or a different result.

Exception: The Ninth Circuit’s Rule 35–3 provides that the three-judge panel retains jurisdiction during en banc proceedings. Pay attention to circuit-specific rules.

9.2 Plurality Opinions

Plurality opinions (where no single rationale commands a majority of the court) present unique challenges. Under Marks v. United States, 430 U.S. 188 (1977), the holding of a plurality decision is the “position taken by those Members who concurred in the judgments on the narrowest grounds.”

When classifying treatment of a plurality opinion:

• Identify the Marks holding (the narrowest ground).
• Classify treatment of the Marks holding separately from treatment of the plurality’s broader reasoning.
• Note that lower courts frequently disagree about what the Marks holding of a given plurality opinion is. If the citing court identifies a different Marks holding than other courts, note this conflict.

9.3 Concurrences and Dissents

Concurrences and dissents are not holdings and cannot be “overruled” or “followed” in the technical sense. However, they can be:

• CITED or DISCUSSED — neutrally referenced.
• ADOPTED — a later majority opinion adopts the reasoning of a former concurrence or dissent.
• APPROVED — a court endorses the view expressed in a concurrence or dissent.

When a dissent’s position is later adopted by the same court, the original majority opinion should be classified as OVERRULED (not the dissent as "vindicated" — we track the negative treatment of the majority, not the positive treatment of the dissent).

9.4 Unpublished / Non-Precedential Opinions

Unpublished opinions are, in most circuits, not binding precedent. However:

• They can still receive and give treatment.
• An unpublished opinion that is “distinguished” or “criticized” by a published opinion should be classified normally.
• Be cautious about classifying an unpublished opinion as authority that “overrules” or “abrogates” a published opinion — most circuits’ rules would not permit this.

9.5 State Court vs. Federal Court Interactions

• A federal court interpreting state law is bound by the state’s highest court but not by intermediate state appellate courts (though their opinions are highly persuasive). A federal court’s interpretation of state law cannot “overrule” a state court opinion.
• A state court is the final arbiter of its own state’s law and cannot be overruled by a federal court on state law questions.
• On federal constitutional and statutory questions, federal courts (particularly the U.S. Supreme Court) are authoritative, and state courts must follow them.

9.6 Retroactivity and Prospective Overruling

Some courts overrule a prior decision prospectively only — meaning the new rule applies only to future cases, and parties who relied on the old rule are not affected. When this occurs:

• Classify as OVERRULED with a notation that the overruling is prospective.
• The cited case remains valid authority for cases arising before the date of the overruling decision.

9.7 Legislative History References

When a court’s opinion is referenced in legislative history (committee reports, floor statements) as the “problem” a new statute is designed to address, this supports a SUPERSEDED_BY_STATUTE classification — the legislative history provides evidence that the statute was enacted in response to the cited case.

9.8 Certified Questions

When a federal court certifies a question of state law to a state supreme court, and the state court’s answer contradicts the federal court’s prior interpretation, classify the federal opinion as ABROGATED by the state court's certification answer (since the state court is the authoritative interpreter of its own law).

9.9 Overruled in Part on Grounds You Don’t Care About

It is common for a case to be “overruled in part” where the overruled portion is a minor procedural or evidentiary holding, while the substantive legal holding that researchers actually care about remains intact. Always specify the scope of the negative treatment. Do not apply a blanket red flag to the entire case when only one discrete holding has been overruled.

10. Decision Trees & Flowcharts

10.1 Master Classification Flowchart

START: A citing case references a cited case.
│
├─ Is the citing case in the SAME CASE on direct appeal?
│   ├─ YES → Was the judgment below affirmed, reversed, or vacated?
│   │   ├─ Affirmed entirely → AFFIRMED
│   │   ├─ Affirmed in part → AFFIRMED_IN_PART (+ classify reversed parts)
│   │   ├─ Affirmed on other grounds → AFFIRMED_ON_OTHER_GROUNDS
│   │   ├─ Reversed entirely → REVERSED
│   │   ├─ Reversed in part → REVERSED_IN_PART (+ classify affirmed parts)
│   │   ├─ Reversed on other grounds → REVERSED_ON_OTHER_GROUNDS
│   │   ├─ Vacated → VACATED (note reason: moot, GVR, settlement, etc.)
│   │   └─ Vacated and remanded → VACATED (pending reconsideration)
│   │
│   └─ NO → Continue below.
│
├─ Does the citing court have AUTHORITY to overrule the cited case?
│   ├─ YES → Does the citing court EXPRESSLY overrule the cited case?
│   │   ├─ YES → OVERRULED (specify scope: full, in part, on other grounds)
│   │   └─ NO → Is the new holding LOGICALLY INCOMPATIBLE with the cited case?
│   │       ├─ YES → ABROGATED
│   │       └─ NO → Continue below.
│   │
│   └─ NO → Continue below (coordinate court or different system).
│
├─ Is a STATUTE or REGULATION the source of the conflicting authority?
│   ├─ YES → Does the legislation EXPRESSLY target the cited case's rule?
│   │   ├─ YES → SUPERSEDED_BY_STATUTE
│   │   └─ NO → Is the statute LOGICALLY INCOMPATIBLE with the holding?
│   │       ├─ YES → ABROGATED_BY_STATUTE
│   │       └─ NO → Likely no treatment or UNDERMINED at most.
│   │
│   └─ NO → Continue below.
│
├─ Does the citing court QUESTION the validity of the cited case?
│   ├─ YES → QUESTIONED
│   └─ NO → Continue below.
│
├─ Does the citing court CRITICIZE the reasoning of the cited case?
│   ├─ YES → CRITICIZED
│   └─ NO → Continue below.
│
├─ Does the citing court expressly DECLINE TO FOLLOW the cited case?
│   ├─ YES → DECLINED_TO_FOLLOW
│   └─ NO → Continue below.
│
├─ Does the citing court reach a CONTRARY RESULT without engaging?
│   ├─ YES → NOT_FOLLOWED
│   └─ NO → Continue below.
│
├─ Does the citing court DISTINGUISH the cited case on its facts?
│   ├─ YES → Is the distinction genuine or pretextual?
│   │   ├─ Genuine → DISTINGUISHED
│   │   └─ Pretextual → DISTINGUISHED (but consider cumulative UNDERMINED flag)
│   └─ NO → Continue below.
│
├─ Does the citing court LIMIT the cited case to its facts or narrow context?
│   ├─ YES → LIMITED
│   └─ NO → Continue below.
│
├─ Does the citing court FOLLOW/APPLY the cited case as authority?
│   ├─ YES → FOLLOWED
│   └─ NO → Continue below.
│
├─ Does the citing court ADOPT the cited case's reasoning or test?
│   ├─ YES → ADOPTED
│   └─ NO → Continue below.
│
├─ Does the citing court APPROVE of the cited case's reasoning?
│   ├─ YES → APPROVED
│   └─ NO → Continue below.
│
├─ Does the citing court DISCUSS the cited case substantively?
│   ├─ YES → DISCUSSED
│   └─ NO → CITED (mere reference)
│
END

10.2 “Is This Case Still Good Law?” Quick Reference

RED — DO NOT CITE (without major caveats):
  OVERRULED
  REVERSED (on the holding you're citing)
  VACATED
  SUPERSEDED_BY_STATUTE (on the rule you're citing)
  ABROGATED

ORANGE — CITE WITH SIGNIFICANT CAUTION:
  QUESTIONED
  ABROGATED_BY_STATUTE
  OVERRULED_IN_PART (check which part)
  UNDERMINED
  REVERSED_ON_OTHER_GROUNDS (check which grounds)
  DECLINED_TO_FOLLOW (in your jurisdiction)

YELLOW — CITE WITH AWARENESS:
  CRITICIZED
  LIMITED
  DECLINED_TO_EXTEND
  AFFIRMED_ON_OTHER_GROUNDS (reasoning may not be endorsed)

GREEN — GENERALLY SAFE TO CITE:
  FOLLOWED
  AFFIRMED
  ADOPTED
  APPROVED
  HARMONIZED

NEUTRAL — NO SIGNAL:
  CITED
  DISCUSSED
  EXPLAINED
  DISTINGUISHED (in other factual contexts)

11. Common Errors & Pitfalls

11.1 The “Different Result = Overruled” Error

Wrong: “The Ninth Circuit reached the opposite result from the Second Circuit, so the Second Circuit case is overruled.” Right: This is a circuit split. Neither case is overruled. Both are good law in their respective circuits. Classify as DECLINED_TO_FOLLOW or NOT_FOLLOWED.

11.2 The “Reversed = All Holdings Dead” Error

Wrong: “The case was reversed on appeal, so nothing in the opinion can be cited.” Right: Examine what was reversed. If the reversal was on Issue B, the analysis of Issue A survives as persuasive authority. If the reversal was on factual grounds (clear error), the legal holdings survive.

11.3 The “Cert Denied = Approved” Error

Wrong: “The Supreme Court denied certiorari, so the lower court opinion is approved by the Supreme Court.” Right: Denial of certiorari carries zero precedential value. It means only that four Justices did not vote to hear the case, for any of dozens of possible reasons.

11.4 The “Old = Bad” Error

Wrong: “This case is from 1955, so it must be bad law.” Right: Age alone is not a basis for negative treatment. Many foundational cases are decades old and remain pillars of their respective doctrines.

11.5 The “Dicta Overruled” Error

Wrong: “The court overruled the dicta from Smith.” Right: Dicta cannot be overruled because it was never a holding. Use DICTA_QUESTIONED or DICTA_DISAPPROVED or simply note the disagreement with the dicta.

11.6 The “Same Topic = Treatment” Error

Wrong: “Both cases discuss sovereign immunity, so the newer one must treat the older one.” Right: Cases on the same topic do not necessarily treat each other. If the newer case never cites or engages with the older case, there is no treatment to classify.

11.7 The “Distinguishing Is Negative” Error

Wrong: “The case was distinguished, so it’s weakened.” Right: Distinguishing is neutral. It means the case doesn’t apply to different facts. A case that is distinguished remains fully authoritative for its own facts and legal context.

11.8 The Procedural Posture Mismatch Error

Wrong: “Smith survived a motion to dismiss and Jones lost on summary judgment, so Jones overrules Smith.” Right: These decisions answer fundamentally different procedural questions. A case that survives 12(b)(6) and a case that fails at summary judgment are not in conflict — they are ships passing in the night.

12. Worked Examples

12.1 Example: The Classic Overruling

Plessy v. Ferguson, 163 U.S. 537 (1896), held that racially segregated public facilities were constitutional under the Fourteenth Amendment’s Equal Protection Clause, provided they were “separate but equal.”

Brown v. Board of Education, 347 U.S. 483 (1954), held that racial segregation in public schools is inherently unequal and violates the Equal Protection Clause.

Classification: OVERRULED

Analysis: The Supreme Court (which has authority to overrule its own prior decisions) directly engaged with Plessy’s holding and reached a logically incompatible conclusion. Although the Brown opinion famously does not use the word “overrule,” the Court’s holding that “separate but equal” has “no place” in public education effectively and expressly repudiates Plessy’s central holding.

Note: Plessy was technically overruled only as to public education in Brown itself. Its broader “separate but equal” doctrine was dismantled over subsequent years through a series of per curiam orders extending Brown to other public facilities. Each of those orders constitutes a separate treatment event.

12.2 Example: Abrogation Without Express Overruling

Chevron U.S.A., Inc. v. NRDC, 467 U.S. 837 (1984), established the two-step framework for judicial deference to agency interpretations of ambiguous statutes.

Loper Bright Enterprises v. Raimondo, 144 S. Ct. 2244 (2024), held that courts must exercise independent judgment in deciding whether an agency has acted within its statutory authority, and expressly overruled Chevron.

Classification: OVERRULED

Analysis: The Supreme Court expressly overruled Chevron. This is straightforward.

But what about lower court cases that relied on Chevron deference? Thousands of lower court opinions reached their holdings by deferring to agency interpretations under Chevron. After Loper Bright, these cases have not been individually overruled — but their reasoning (agency deference) is no longer valid. Classify these cases as ABROGATED — their holdings were implicitly undermined by the elimination of the framework on which they relied.

12.3 Example: Distinguished vs. Limited

Case A holds that the Fourth Amendment requires a warrant to search a person’s home, including any structure attached to the home.

Case B holds that Case A does not apply to a detached garage located 50 feet from the home.

Case C holds that Case A applies only to the physical dwelling itself and not to any attached structures such as screened porches.

Classifications:

• Case B’s treatment of Case A: DISTINGUISHED — The facts are materially different (detached vs. attached), and Case A's holding about attached structures is undisturbed.
• Case C’s treatment of Case A: LIMITED — Case C narrows Case A's holding as a matter of law, removing attached structures from its scope. Case A has permanently lost legal territory.

12.4 Example: Reversed on Other Grounds

A trial court issues an opinion with two holdings: (1) The employer’s arbitration clause is unconscionable under state law. (2) Even if enforceable, the arbitration clause does not cover the plaintiff’s discrimination claims.

On appeal, the appellate court reverses solely on holding (1), finding the arbitration clause enforceable. It does not address holding (2).

Classifications:

• Holding (1): REVERSED — The appellate court directly reversed this legal conclusion.
• Holding (2): No treatment. The appellate court did not reach this issue. Holding (2) remains available as persuasive authority, though its precedential value is limited because the judgment in which it appeared was reversed.
• Overall case: REVERSED_IN_PART — The judgment was reversed, but not all holdings were addressed.

12.5 Example: Superseded by Statute

Ledbetter v. Goodyear Tire & Rubber Co., 550 U.S. 618 (2007), held that the statute of limitations for pay discrimination claims under Title VII begins to run at the time of each discrete discriminatory pay decision.

Congress enacted the Lilly Ledbetter Fair Pay Act of 2009, which provides that the limitations period resets with each paycheck that reflects a prior discriminatory pay decision.

Classification: SUPERSEDED_BY_STATUTE

Analysis: Congress enacted the statute in direct response to Ledbetter, expressly changing the rule the Court announced. The legislative history specifically identifies Ledbetter as the decision the statute was designed to override.

13. Glossary

TermDefinitionAbrogatedImplicitly overruled by a logically incompatible holding from a court with overruling authorityAffirmedUpheld on direct appeal in the same caseAdoptedA court in another case embraces the cited case’s reasoning or test as its ownApprovedA higher court expressly endorses the cited case’s reasoning outside of direct appealCert deniedThe Supreme Court declined to hear the case; carries no precedential weightCitedMentioned without substantive engagementCoordinate courtA court at the same level in the judicial hierarchy (e.g., two federal district courts, two circuit courts)CriticizedA court finds fault with the reasoning but does not question the resultDe novoAppellate review with no deference to the lower court’s legal conclusionsDictaStatements in an opinion not necessary to the decision; not binding precedentDiscussedSubstantively described in a neutral, expository mannerDistinguishedFound inapplicable to different facts; neutral treatmentDeclined to extendThe court refused to apply the cited case’s principle to a new contextDeclined to followA coordinate court expressly refuses to follow the cited caseEn bancRehearing by the full court (or a designated number) rather than a three-judge panelExplainedUsed illustratively without relying on it as authorityFollowedApplied as controlling or binding authorityGVRGrant, Vacate, Remand — Supreme Court vacates and remands for reconsiderationHarmonizedReconciled with apparently conflicting authorityHoldingThe court’s resolution of a legal question necessary to the dispositionLimitedRestricted as a matter of law to its specific facts or a narrow principleNot followedA contrary result is reached without express engagementOverruledExpressly declared no longer good law by a court with authorityPluralityAn opinion that announces the judgment but lacks majority support for its reasoningQuestionedA court expressly doubts the continuing validity of the holdingReversedOverturned on direct appeal in the same caseSuperseded by statuteA legislative body has expressly overridden the holdingUnderminedImplicitly weakened by doctrinal developments without express repudiationVacatedThe judgment has been set aside and rendered a legal nullity

Appendix A: Classification Severity Hierarchy

From most severe (most destructive to cited case authority) to least severe:

1. OVERRULED / REVERSED / VACATED
2. ABROGATED / SUPERSEDED_BY_STATUTE
3. ABROGATED_BY_STATUTE / OVERRULED_IN_PART
4. QUESTIONED / DECLINED_TO_FOLLOW
5. UNDERMINED / NOT_FOLLOWED
6. CRITICIZED / LIMITED
7. DECLINED_TO_EXTEND
8. DISTINGUISHED (neutral, not negative)
9. DISCUSSED / EXPLAINED / CITED (neutral)
10. FOLLOWED / AFFIRMED / ADOPTED / APPROVED / HARMONIZED (positive)

Appendix B: Quick-Reference Card for Daily Use

Before classifying, always ask:

1. What is the specific holding of the cited case that the citing case engages with?
2. Does the citing court have authority to overrule the cited case?
3. Is the citing case in the same case on direct appeal, or a different case?
4. What was the procedural posture of both cases?
5. What standard of review applies (if appellate)?
6. Is the treatment express or implied?
7. Does the treatment affect the entire case or only a specific holding?
8. If the holding survives, is the reasoning also endorsed, or only the result?

Authoritative sources for case treatment classification doctrines

This report identifies 90+ verified academic and treatise sources supporting the doctrinal claims in the Case Treatment Classification Guide across all 12 topic areas. Every source listed below has been verified through web searches of law review databases, university repositories, publisher catalogs, or SSRN. The strongest, most directly on-point source for each doctrinal claim is identified first, with supplementary authorities following. Citations use Author, Title, Publication, Year format for easy location.

Appendix C: ## 1. Stare decisis and hierarchical authority

These claims form the structural backbone of any citator system. The single most comprehensive source is Bryan A. Garner et al., The Law of Judicial Precedent (Thomson West, 2016) — a 910-page hornbook co-authored by 13 federal appellate judges (including then-Judges Gorsuch and Kavanaugh) that covers every claim in this section. It is the first major treatise on precedent in over a century.

A court can overrule its own prior decisions (horizontal stare decisis):

• Bryan A. Garner et al., The Law of Judicial Precedent, Thomson West, 2016
• Michael J. Gerhardt, The Power of Precedent, Oxford University Press, 2008
• Randy J. Kozel, Settled Versus Right: A Theory of Precedent, Cambridge University Press, 2017
• Amy Coney Barrett, “Stare Decisis and Due Process,” 74 University of Colorado Law Review 1011, 2003
• Amy Coney Barrett, “Precedent and Jurisprudential Disagreement,” 91 Texas Law Review 1711, 2013
• Melvin Aron Eisenberg, The Nature of the Common Law, Harvard University Press, 1988

A higher court can overrule a lower court (vertical stare decisis):

• Evan H. Caminker, “Why Must Inferior Courts Obey Superior Court Precedents?,” 46 Stanford Law Review 817, 1994 — the seminal article on vertical stare decisis
• Tara Leigh Grove, “Sacrificing Legitimacy in a Hierarchical Judiciary,” 121 Columbia Law Review 1555, 2021
• Garner et al. (2016) at p. 27: “Federal and state courts are absolutely bound by vertical precedents — those delivered by higher courts within the same jurisdiction.”

A coordinate court cannot overrule another coordinate court:

• Evan H. Caminker, “Why Must Inferior Courts Obey Superior Court Precedents?,” 46 Stanford Law Review 817, 1994
• Amy Coney Barrett, “Statutory Stare Decisis in the Courts of Appeals,” 73 George Washington Law Review 317, 2005
• Joseph W. Mead, “Stare Decisis in the Inferior Courts of the United States,” Nevada Law Journal, 2012
• John Harrison, “The Power of Congress over the Rules of Precedent,” 50 Duke Law Journal 503, 2000

A federal circuit cannot overrule a state supreme court on state law: This claim is supported by the Erie doctrine sources in Section 9 below, plus Wright & Miller, Federal Practice and Procedure, Vol. 19, §§ 4501–4512.

Express overruling vs. implicit abrogation:

• Garner et al. (2016), with dedicated sections on each form
• Richard M. Re, “Narrowing Supreme Court Precedent from Below,” 104 Georgetown Law Journal 921, 2016

Denial of certiorari carries no precedential weight:

• Maryland v. Baltimore Radio Show, Inc., 338 U.S. 912 (1950) — Justice Frankfurter’s definitive statement that cert denial “carries with it no implication whatever regarding the Court’s views on the merits”
• Singleton v. Commissioner, 439 U.S. 940, 944–945 (1978) — Justice Stevens reaffirming cert denials have “no precedential significance at all”
• Frederick Schauer, “Precedent,” 39 Stanford Law Review 571, 1987

2. The holding-dicta distinction has a deep scholarly literature

The most precise treatment of this topic — and the source that most directly maps onto a three-component definition of “holding” — is Michael Abramowicz & Maxwell Stearns, “Defining Dicta,” 57 Stanford Law Review 953, 2005. Their definition: “A holding consists of those propositions along the chosen decisional path or paths of reasoning that (1) are actually decided, (2) are based upon the facts of the case, and (3) lead to the judgment.”

Definition of holding as resolution necessary to disposition:

• Abramowicz & Stearns, “Defining Dicta,” 57 Stanford Law Review 953, 2005
• Arthur L. Goodhart, “Determining the Ratio Decidendi of a Case,” 40 Yale Law Journal 161, 1930 — the foundational article on identifying holdings
• Kent Greenawalt, “Reflections on Holding and Dictum,” 39 Journal of Legal Education 431, 1989
• Michael C. Dorf, “Dicta and Article III,” 142 University of Pennsylvania Law Review 1997, 1994 (note: this is in Penn Law Review, not Northwestern as sometimes cited)

Three components of a holding (legal rule, material facts, conclusion):

• Abramowicz & Stearns (2005) — their three-part definition directly maps to this claim
• Goodhart (1930) — pioneered the relationship between material facts and legal conclusions
• Eisenberg, The Nature of the Common Law, 1988

Definition of dicta as statements not necessary to resolution:

• Abramowicz & Stearns (2005): “If not a holding, a proposition stated in a case counts as dicta”
• Pierre N. Leval, “Judging Under the Constitution: Dicta About Dicta,” 81 New York University Law Review 1249, 2006
• Greenawalt (1989): “What the court says or determines that is necessary to its decision is holding; what it says in passing that is not required for the decision is dictum”
• Richard A. Posner, How Judges Think, Harvard University Press, 2008, at p. 81

Dicta cannot be “overruled” in the strict sense:

• Leval (2006) — argues courts exceed constitutional power when treating dicta as binding
• Neal Devins & David Klein, “Dicta, Schmicta: Theory Versus Practice in Lower Court Decision Making,” 54 William & Mary Law Review, 2012–2013
• Ruggero Aldisert, “Precedent: What It Is and What It Isn’t; When Do We Kiss It and When Do We Kill It?,” 17 Pepperdine Law Review 605, 1990

Alternative holdings — both are holdings, neither is dicta:

• Abramowicz & Stearns (2005), Section III.C.3 on “decisional paths”
• Garner et al. (2016) — supports the majority position that both alternative holdings qualify as holdings
• Wright, Miller & Cooper, Federal Practice and Procedure § 4421 (3d ed.) — discusses alternative holdings in the preclusion context
• Restatement (Second) of Judgments § 27, comment i (ALI, 1982) — takes a contrary view for issue preclusion purposes, but the stare decisis majority rule treats both as holdings

Holdings at different levels of generality:

• Karl N. Llewellyn, The Bramble Bush: On Our Law and Its Study, 1930 — the classic discussion of maximum vs. minimum precedential value
• Randy Kozel, “The Scope of Precedent,” 113 Michigan Law Review 179, 2014
• Larry Alexander, “Constrained by Precedent,” 63 Southern California Law Review 1, 1989

3. Procedural posture and standards of review

The definitive treatise on standards of review is Steven Alan Childress & Martha S. Davis, Federal Standards of Review (LexisNexis, 5th ed., 2010), originally published in 1986. For procedural posture questions, Wright & Miller, Federal Practice and Procedure remains the standard multi-volume reference.

Different procedural postures answer different legal questions:

• Wright & Miller, Federal Practice and Procedure, Vol. 5B (Civil 3d, §§ 1341–1357) on Rule 12(b)(6) motions and Vol. 9B (Civil 3d, §§ 2471–2550) on summary judgment — these volumes demonstrate the fundamentally different legal standards applicable at each stage
• Michael Risch, “Procedural Posture and Social Choice,” 107 Minnesota Law Review 1621, 2023 — directly argues that procedural posture is a form of agenda control producing different legal questions at different stages

Standards of review (de novo, abuse of discretion, clear error, substantial evidence):

• Steven Alan Childress & Martha S. Davis, Federal Standards of Review, LexisNexis, 5th ed., 2010
• Martin B. Louis, “Allocating Adjudicative Decision Making Authority between the Trial and Appellate Levels,” 64 North Carolina Law Review 993, 1986
• Amanda Peters, “Meaning, Measure, and Misuse of Standards of Review,” 13 Lewis & Clark Law Review 233, 2009

Reversal on factual grounds (clear error) does not destroy legal holdings:

• Childress & Davis (2010) — explicitly addresses separation of legal and factual determinations on review
• Louis (1986) — discusses how legal conclusions reviewed de novo are independent of factual findings reviewed for clear error
• Wright & Miller, relevant appellate review volumes

Partial reversals require separate classification of each component:

• Childress & Davis (2010) — different issues within the same case may be subject to different standards
• Louis (1986) — each component must be classified as law, fact, or mixed question

4. Vacatur doctrine and the “legal nullity” concept

The vacatur literature is anchored by the Supreme Court’s decision in U.S. Bancorp Mortgage Co. v. Bonner Mall Partnership, 513 U.S. 18 (1994) and a rich body of scholarship by Jill Fisch and Judith Resnik.

Vacated opinion as a “legal nullity”:

• Jill E. Fisch, “Rewriting History: The Propriety of Eradicating Prior Decisional Law Through Settlement and Vacatur,” 76 Cornell Law Review 589, 1991 — cited by the Supreme Court in Bonner Mall; establishes that “a vacated decision may remain in the case reporters, [but] its precedential value is extremely limited”
• Jill E. Fisch, “The Vanishing Precedent: Eduardo Meets Vacatur,” 70 Notre Dame Law Review 325, 1994 — states “vacatur otherwise eliminates precedential value”
• Daniel Purcell, “The Public Right to Precedent: A Theory and Rejection of Vacatur,” 85 California Law Review 867, 1997
• Benjamin B. Johnson, “A History of Vacatur,” Yale Law Journal, 2025 — most comprehensive historical treatment: “Once vacated, lower court orders are void ab initio and thus lack any prospective legal effect”
• Wright, Miller & Cooper, Federal Practice and Procedure § 3533.10

GVR (Grant, Vacate, Remand) procedure:

• Aaron-Andrew P. Bruhl, “The Supreme Court’s Controversial GVRs — And an Alternative,” 107 Michigan Law Review 711, 2009 — comprehensive empirical study defining GVR as “the Court’s procedure for summarily granting certiorari, vacating the decision below without finding error, and remanding the case for further consideration”
• Ruby Emberling, “Vacatur Pending En Banc Review,” 120 Michigan Law Review 505, 2021

Vacatur by settlement (including Second Circuit practice):

• U.S. Bancorp Mortgage Co. v. Bonner Mall Partnership, 513 U.S. 18 (1994) — holds settlement-based mootness does not ordinarily justify vacatur
• Judith Resnik, “Whose Judgment? Vacating Judgments, Preferences for Settlement, and the Role of Adjudication at the Close of the Twentieth Century,” 41 UCLA Law Review 1471, 1994
• Andrew S. Tulumello, “Shopping for Legal Precedent Through Settlement-Related Vacatur,” 1 Harvard Negotiation Law Review 213, 1996
• Wright, Miller & Cooper, Federal Practice and Procedure § 3533.10 — discusses the circuit split on settlement vacatur

Vacated opinions should not be cited:

• Howard Slavitt, “Selling the Integrity of the System of Precedent: Selective Publication, Depublication, and Vacatur,” 30 Harvard Civil Rights-Civil Liberties Law Review, 1995
• Purcell (1997), Fisch (1991, 1994) — all argue vacatur renders opinions non-citable

5. Supersession by statute draws on Eskridge’s foundational work

William Eskridge’s empirical and theoretical scholarship dominates this field.

Legislative override of judicial decisions:

• William N. Eskridge Jr., “Overriding Supreme Court Statutory Interpretation Decisions,” 101 Yale Law Journal 331, 1991 — the groundbreaking empirical study documenting congressional overrides from 1967–1990
• Matthew R. Christiansen & William N. Eskridge Jr., “Congressional Overrides of Supreme Court Statutory Interpretation Decisions, 1967–2011,” 92 Texas Law Review 1317, 2014 — updated study identifying 275 overrides
• Abner J. Mikva & Jeff Bleich, “When Congress Overrules the Court,” 79 California Law Review 729, 1991

Express supersession vs. implied abrogation:

• Norman J. Singer & J.D. Shambie Singer, Sutherland Statutes and Statutory Construction (7th ed., Thomson/West, 2007–present) — the definitive treatise, with Vol. 2B covering implied repeal and the strong presumption against it
• Antonin Scalia & Bryan A. Garner, Reading Law: The Interpretation of Legal Texts, West, 2012 — includes the “Presumption Against Implied Repeal” canon
• William N. Eskridge Jr., Dynamic Statutory Interpretation, Harvard University Press, 1994

Superseded cases retain interpretive value:

• Christiansen & Eskridge (2014) — taxonomy of “restorative” vs. “updating” overrides shows continued relevance of original decisions
• Deborah A. Widiss, “Identifying Congressional Overrides Should Not Be This Hard,” 92 Texas Law Review See Also 145, 2014 — demonstrates courts often continue citing superseded cases

6. En banc rehearings and the automatic vacatur rule

Panel opinions vacated when en banc rehearing is granted:

• Federal Rules of Appellate Procedure Rule 35 and Advisory Committee Notes — establishes en banc procedure
• Wright, Miller & Cooper, Federal Practice and Procedure, Vol. 16AA, §§ 3981–3982 — standard treatise treatment of en banc mechanics including automatic vacatur
• Douglas H. Ginsburg & Donald Falk, “The Court En Banc: 1981–1990,” 59 George Washington Law Review 1008, 1991
• Tracey E. George, “The Dynamics and Determinants of the Decision to Grant En Banc Review,” 74 Washington Law Review 213, 1999

Ninth Circuit Rule 35–3 exception:

• Ninth Circuit Rule 35–3 and General Orders 5.3–5.8 (available at ca9.uscourts.gov) — governs the limited en banc court of 11 judges (Chief Judge plus 10 drawn by lot) rather than the full court of ~29 active judges
• Stephen L. Wasby, “Why Sit En Banc?,” 63 Hastings Law Journal 747, 2012
• Stephen L. Wasby, “A Watchdog for the Good of the Order: The Ninth Circuit’s En Banc Coordinator,” 12 Journal of Appellate Practice and Process 91, 2011

7. Plurality opinions and the Marks doctrine’s persistent confusion

The scholarly consensus is that the Marks rule creates more confusion than it resolves. Lower courts apply at least three distinct approaches to identifying the “narrowest grounds,” frequently reaching incompatible results.

The Marks “narrowest grounds” rule:

• Ryan C. Williams, “Questioning Marks: Plurality Decisions and Precedential Constraint,” 69 Stanford Law Review 795, 2017 — identifies three distinct lower court approaches and proposes a fourth
• Richard M. Re, “Beyond the Marks Rule,” 132 Harvard Law Review 1942, 2019 — first systematic empirical study; argues the rule should be abandoned entirely
• Mark Alan Thurmon, “When the Court Divides: Reconsidering the Precedential Value of Supreme Court Plurality Decisions,” 42 Duke Law Journal 419, 1992
• Linda Novak, “The Precedential Value of Supreme Court Plurality Decisions,” 80 Columbia Law Review 756, 1980 — foundational early analysis

Lower courts frequently disagree about Marks holdings:

• Williams (2017) and Re (2019) both comprehensively document this disagreement
• Justin F. Marceau, “Plurality Decisions: Upward-Flowing Precedent and Acoustic Separation,” 45 Connecticut Law Review, 2013
• Ken Kimura, “A Legitimacy Model for the Interpretation of Plurality Decisions,” 77 Cornell Law Review 1593, 1992
• John F. Davis & William L. Reynolds, “Juridical Cripples: Plurality Opinions in the Supreme Court,” 1974 Duke Law Journal 59, 1974 — the influential early critique
• James F. Spriggs II & David R. Stras, “Explaining Plurality Decisions,” 99 Georgetown Law Journal 515, 2011

8. Unpublished opinions and FRAP Rule 32.1

Most circuits treat unpublished opinions as non-binding:

• William L. Reynolds & William M. Richman, “The Non-Precedential Precedent — Limited Publication and No-Citation Rules in the United States Courts of Appeals,” 78 Columbia Law Review 1167, 1978 — the foundational article
• Penelope Pether, “Inequitable Injunctions: The Scandal of Private Judging in the U.S. Courts,” 56 Stanford Law Review 1435, 2004 — documents that approximately 80% of federal appellate opinions are unpublished
• Penelope Pether, “Sorcerers, Not Apprentices: How Judicial Clerks and Staff Attorneys Impoverish U.S. Law,” 39 Arizona State Law Journal 1, 2007
• William M. Richman & William L. Reynolds, Injustice on Appeal: The United States Courts of Appeals in Crisis, Oxford University Press, 2012
• Martha J. Dragich, “Will the Federal Courts of Appeals Perish if They Publish?,” 44 American University Law Review 757, 1995

FRAP Rule 32.1 and circuit-specific rules:

• FRAP Rule 32.1 (effective January 1, 2007): “A court may not prohibit or restrict the citation of federal judicial opinions…designated as ‘unpublished’…issued on or after January 1, 2007”
• Patrick J. Schiltz, “The Citation of Unpublished Opinions in the Federal Courts of Appeals,” 74 Fordham Law Review 23, 2005 — Schiltz served as Reporter to the Advisory Committee on Appellate Rules and provides the insider history of Rule 32.1
• Patrick J. Schiltz, “Much Ado About Little: Explaining the Sturm Und Drang Over the Citation of Unpublished Opinions,” 62 Washington & Lee Law Review 1429, 2005
• Stephen R. Barnett, “From Anastasoff to Hart to West’s Federal Appendix: The Ground Shifts Under No-Citation Rules,” 4 Journal of Appellate Practice and Process 1, 2002
• Kirt Shuldberg, “Digital Influence: Technology and Unpublished Opinions in the Federal Courts of Appeals,” 85 California Law Review 541, 1997
• David Greenwald & Frederick A.O. Schwarz Jr., “The Censorial Judiciary,” 35 U.C. Davis Law Review 1133, 2002
• Boyce F. Martin Jr., “In Defense of Unpublished Opinions,” 60 Ohio State Law Journal 177, 1999

9. Federal-state interactions and the Erie doctrine

The gold-standard casebook-treatise is Fallon, Manning, Meltzer & Shapiro, Hart and Wechsler’s The Federal Courts and the Federal System (7th ed., Foundation Press, 2015), which provides exhaustive coverage of all Erie-related claims.

Federal courts bound by state’s highest court on state law; not bound by intermediate state courts; state courts as final arbiters:

• Richard H. Fallon Jr., John F. Manning, Daniel J. Meltzer & David L. Shapiro, Hart and Wechsler’s The Federal Courts and the Federal System, 7th ed., Foundation Press, 2015
• Charles Alan Wright & Mary Kay Kane, Law of Federal Courts, 6th ed., West, 2002
• Wright, Miller & Cooper, Federal Practice and Procedure, Vol. 19, §§ 4501–4512
• Edward A. Purcell Jr., Brandeis and the Progressive Constitution: Erie, the Judicial Power, and the Politics of the Federal Courts in Twentieth-Century America, Yale University Press, 2000
• Thomas D. Rowe Jr., “Not Bad for Government Work: Does Anyone Else Think the Supreme Court Is Doing a Halfway Decent Job in Its Erie-Hanna Jurisprudence?,” 73 Notre Dame Law Review 963, 1998
• Adam N. Steinman, “What Is the Erie Doctrine?,” 84 Notre Dame Law Review 245, 2008
• Bradford R. Clark, “Erie’s Constitutional Source,” 95 California Law Review 1289, 2007

10. Prospective overruling from Linkletter to the modern era

Concept and historical treatment of prospective overruling:

• Paul J. Mishkin, “Foreword: The High Court, the Great Writ, and the Due Process of Time and Law,” 79 Harvard Law Review 56, 1965 — the Harvard Foreword critiquing Linkletter v. Walker
• Richard H. Fallon Jr. & Daniel J. Meltzer, “New Law, Non-Retroactivity, and Constitutional Remedies,” 104 Harvard Law Review 1731, 1991
• Jill E. Fisch, “Retroactivity and Legal Change: An Equilibrium Approach,” 110 Harvard Law Review 1055, 1997
• Kermit Roosevelt III, “A Little Theory Is a Dangerous Thing: The Myth of Adjudicative Retroactivity,” 31 Connecticut Law Review 1075, 1999
• Kermit Roosevelt III, “A Retroactivity Retrospective, with Thoughts for the Future,” 95 California Law Review 1677, 2007
• Roger J. Traynor, “Quo Vadis, Prospective Overruling: A Question of Judicial Responsibility,” 28 Hastings Law Journal 533, 1977 — by the Chief Justice who pioneered the practice
• Samuel Beswick, “Retroactive Adjudication,” 130 Yale Law Journal 276, 2020

11. Certified questions bridge the federal-state gap

The certified question procedure:

• Uniform Certification of Questions of Law Act (National Conference of Commissioners on Uniform State Laws, 1967; revised 1995) — 49 states plus D.C. have now adopted certification procedures
• Jonathan Remy Nash, “Examining the Power of Federal Courts to Certify Questions of State Law,” 88 Cornell Law Review 1672, 2003
• Eric Eisenberg, “A Divine Comity: Certification (at Last) in North Carolina,” 58 Duke Law Journal 69, 2008
• Rebecca A. Cochran, “Federal Court Certification of Questions of State Law to State Courts: A Theoretical and Empirical Study,” 29 Journal of Legislation (Notre Dame) 157, 2003
• Wright & Miller, Federal Practice and Procedure § 4248 (3d ed., 2007)

State court answer contradicting federal interpretation effectively abrogates:

• Cochran (2003) — provides both theoretical and empirical framework
• Bradford R. Clark, “Ascertaining the Laws of the Several States: Positivism and Judicial Federalism After Erie,” 145 University of Pennsylvania Law Review 1459, 1997

12. Citator methodology has a surprisingly rich scholarly history

No single source explicitly names the “three dimensions” framework (scope, severity, mechanism) by those exact terms, but the underlying concepts trace to the earliest days of American citator design. Joseph Story advised Simon Greenleaf in 1819 that citation indexes should specify the degree of negative treatment since “some cases were not fully overturned, but had some doubt cast on them, or only had parts of them reversed, or were limited to specific cases” — anticipating all three dimensions.

The “over-flag rather than under-flag” principle:

• Paul Hellyer, “Evaluating Shepard’s, KeyCite, and BCite for Case Validation Accuracy,” 110 Law Library Journal 449, 2018 — the largest statistical comparison of citator accuracy; states: “If a citing case gives a mix of positive and negative treatment, I expect a citator to apply a negative label.” Found that each citator missed approximately one-third of negative treatment, validating the importance of conservative over-flagging.
• Aaron S. Kirschenfeld, “Yellow Flag Fever: Describing Negative Legal Precedent in Citators,” 108 Law Library Journal 77, 2016 — the title itself captures the phenomenon of liberal cautionary flagging
• William L. Taylor, “Comparing KeyCite and Shepard’s for Completeness, Currency, and Accuracy,” 92 Law Library Journal 127, 2000
• Dan Dabney, “Another Response to Taylor’s Comparison of KeyCite and Shepard’s,” 92 Law Library Journal 381, 2000 — concludes “history tags are of immense assistance…but should not be relied upon exclusively”

Classifying treatment of specific holdings rather than entire cases:

• Hellyer (2018) — notes Shepard’s can apply “both positive and negative labels for the same citing case with specific pin cites, but KeyCite and BCite do not”
• Susan Nevelow Mart, “The Case for Curation: The Relevance of Digest and Citator Results in Westlaw and Lexis,” 32 Legal Reference Services Quarterly 13, 2013 — demonstrates headnote-level classification significantly affects citator results
• Kent C. Olson, Aaron S. Kirschenfeld & Ingrid Mattson, Principles of Legal Research, West Academic, 3rd ed., 2020 (successor to Morris L. Cohen, Robert C. Berring & Kent C. Olson, How to Find the Law, 9th ed., 1989)

Multi-dimensional classification (scope, severity, mechanism) and citator history:

• Patti J. Ogden, “Mastering the Lawless Science of Our Law: A Story of Legal Citation Indexes,” 85 Law Library Journal 1, 1993 — comprehensive history documenting Joseph Story’s 1819 multi-dimensional framework
• Laura C. Dabney, “Citators: Past, Present, and Future,” 27 Legal Reference Services Quarterly 165, 2008 — traces evolution from simple overruled/affirmed categories to modern multi-dimensional classification
• Robert C. Berring, “Full-Text Databases and Legal Research: Backing into the Future,” 1 High Technology Law Journal 27, 1986
• Robert C. Berring, “Collapse of the Structure of the Legal Research Universe: The Imperative of Digital Information,” 69 Washington Law Review 9, 1994
• Robert C. Berring, “Legal Information and the Search for Cognitive Authority,” 88 California Law Review 1673, 2000

Conclusion

The doctrinal claims in the Case Treatment Classification Guide are well-supported by an extensive body of established legal scholarship. Several cross-cutting sources deserve special mention for their breadth of coverage. Garner et al., The Law of Judicial Precedent (2016) is the single most useful source, covering stare decisis, hierarchical authority, holdings, dicta, alternative holdings, and overruling. Wright & Miller, Federal Practice and Procedure covers nearly every procedural claim across its 55+ volumes. Abramowicz & Stearns, “Defining Dicta” (2005) provides the most rigorous analytical framework for the holding-dicta distinction. And Hellyer (2018) is the strongest empirical authority on citator methodology, including the over-flagging principle and holding-level classification.

Three areas where the guide’s claims slightly outrun available explicit scholarly authority warrant noting. First, the specific formulation of “three dimensions of classification (scope, severity, mechanism)” does not appear as a named framework in any located source — though all three dimensions are individually well-documented in citator scholarship dating to 1819. Second, the Ninth Circuit Rule 35–3 claim that the “panel opinion is treated as a dissent” is a characterization of practice rather than explicit rule text. Third, the “over-flag rather than under-flag” principle is strongly implied across multiple sources but no single source uses that exact phrase as a named doctrine. In all three cases, the underlying substance is well-supported even if the precise terminology is original to the guide.