Fourth Circuit: A Vacated Legal-Pornography Ban May Be Reimposed When New Individualized Evidence Emerges, and the Prior Mandate Is Not a Perpetual Bar

Case: United States v. Joseph Castellano (4th Cir. Apr. 6, 2026)  |  Posture: Appeal from revocation sentence and reimposed special condition of supervised release

1. Introduction

This published Fourth Circuit decision addresses when a district court may impose (or reimpose) a special condition of supervised release restricting access to otherwise legal pornography for a defendant convicted of transporting child sexual abuse material. The parties were the United States of America (appellee) and Joseph D. Castellano (appellant).

The case is notable because the same defendant previously won an appeal in United States v. Castellano, 60 F.4th 217, 220 (4th Cir. 2023) (Castellano I), where the Fourth Circuit vacated a broad pornography/nudity restriction due to the government’s failure to provide individualized evidence tying the restriction to supervision goals. On this later appeal, the Fourth Circuit considered whether new evidence—especially testimony and a written assessment from Castellano’s treatment provider—permitted the district court to impose a pornography restriction again, and whether the earlier appellate mandate barred that outcome.

2. Summary of the Opinion

The Fourth Circuit affirmed the district court. It held that:

  • The reimposed pornography restriction was supported by individualized evidence and an individualized explanation, satisfying the “reasonably related” standard governing supervised-release conditions.
  • The earlier decision in Castellano I did not permanently foreclose a pornography restriction; the mandate governed the record and issues then before the court, not later events.
  • Even if the mandate rule were implicated, an exception would apply due to significant new evidence and changed circumstances after Castellano I.
  • The court declined to extend a defendant-focused limitation on belated modification litigation (from United States v. McLeod, 972 F.3d 637, 643 (4th Cir. 2020)) to the government; in any event, new post-Castellano I facts supported the condition.

3. Analysis

3.1 Precedents Cited

The court’s analysis turned on a cluster of supervised-release doctrines—standard of review, the “reasonably related” requirement, individualized evidence, and the mandate rule—and it relied on the following precedents:

(a) United States v. Ellis, 984 F.3d 1092 (4th Cir. 2021)

The opinion restated the governing framework: special conditions must be “reasonably related” to the offense, defendant characteristics, and statutory goals (deterrence, protection of the public, rehabilitation), and failure to satisfy that requirement is an abuse of discretion. This case provided the doctrinal baseline for reviewing the pornography restriction.

(b) United States v. Ellis, 112 F.4th 240 (4th Cir. 2024)

This later Ellis decision underscored the appellate posture: “considerable deference” is owed to district courts because they have broad evidentiary access and direct impressions of the defendant. That deference mattered because Castellano’s challenge depended partly on reframing the treatment provider’s testimony as categorical rather than individualized.

(c) United States v. Castellano, 60 F.4th 217, 220 (4th Cir. 2023) (Castellano I)

Castellano I was both a constraint and a roadmap. It required the government to produce “individualized evidence” (explicitly suggesting “the testimony from a witness responsible for Castellano’s treatment”) and required an “individualized explanation” by the district court before restricting access to legal pornography. Importantly, Castellano I refused to allow the government to “bolster the record on remand” and ordered the condition struck based on the record then existing.

In this new appeal, the Fourth Circuit distinguished Castellano I on its facts: the government did what Castellano I said was missing—presented a treatment provider witness plus a written clinical assessment—thereby satisfying the individualized-evidence requirement.

(d) United States v. Van Donk, 961 F.3d 314 (4th Cir. 2020)

Van Donk addressed a problem common in supervision litigation: treatment providers sometimes apply general rules (e.g., banning pornography for all new patients). The Fourth Circuit relied on Van Donk to hold that even if a provider uses a categorical practice, the condition may still be valid if the provider also explains why the restriction is “particularly needed” for the defendant and the district court makes an individualized assessment.

Here, the court analogized Hill’s testimony to Van Donk: even if Hill held broad views about pornography restrictions for persons with child sexual abuse material convictions, she also supplied a defendant-specific clinical basis grounded in years of treatment and observation.

(e) United States v. Bell, 5 F.3d 64 (4th Cir. 1993)

Bell supplied the Fourth Circuit’s articulation of the mandate rule: lower courts must comply with appellate mandates and may not relitigate issues decided expressly or implicitly. But Bell also recognized exceptions, including “significant new evidence.” This case enabled the panel to conclude that even if the mandate doctrine were triggered, the new evidence and changed circumstances would defeat Castellano’s mandate-rule argument.

(f) Standard Oil Co. of Cal. v. United States, 429 U.S. 17 (1976)

The court invoked Standard Oil Co. of Cal. v. United States for the proposition that an appellate mandate “relates to the record and issues then before the court” and does not purport to address “possible later events.” That principle was central to rejecting the claim that Castellano I permanently barred any future pornography restriction regardless of later violations or new clinical evidence.

(g) United States v. McLeod, 972 F.3d 637, 643 (4th Cir. 2020)

Castellano attempted to leverage McLeod to argue the government should not be able to mount “belated challenges” based on premises previously available. The Fourth Circuit refused to extend McLeod (which concerned a defendant’s motion to modify conditions) to the government and also emphasized that—extension aside—new facts post-dating Castellano I supported the later modification.

(h) United States v. Kuehner, 126 F.4th 319, 322 n.1 (4th Cir. 2025)

Although not central to the holding, United States v. Kuehner was cited for terminology: the court used “child sexual abuse material” rather than “child pornography,” framing the offense as inherently exploitative. This linguistic choice signals sensitivity to victim-centered framing and may influence how courts describe the “nature and circumstances of the offense” under the supervised-release analysis.

3.2 Legal Reasoning

(a) The “reasonably related” requirement and individualized evidence

The court reiterated that a pornography restriction requires “individualized evidence linking [legal] pornography to [the supervisee’s] criminal conduct or rehabilitation and recidivation risk,” and an individualized explanation by the district court. Unlike Castellano I, the government introduced:

  • Live testimony from Amber Hill, a certified sex offender treatment provider who had evaluated and treated Castellano over multiple years; and
  • A written clinical evaluation recommending a pornography restriction.

Hill’s individualized linkage was not merely that pornography is “bad,” but that for Castellano it “ignites a chain reaction” in an “offense cycle”: escalating compulsion, increased time spent consuming sexual content, social withdrawal, and a drift from legal pornography toward material connected to his prior offense conduct (including child sexual abuse material). The district judge explicitly credited that clinical pathway and grounded the restriction in it.

(b) Handling allegedly categorical clinical views

Castellano argued Hill’s testimony failed the individualized-evidence test because she admitted she had never recommended allowing legal pornography for people with certain child sexual abuse material convictions. The Fourth Circuit rejected that argument in two steps:

  • Record-specific narrowing: The court noted defense counsel’s questions asked about “possessing, receiving, or viewing” child sexual abuse material and did not track Castellano’s conviction for “transporting” such material. Under deferential review, that mismatch reduced the force of the “categorical” critique.
  • Even if categorical, still permissible with individualized need: Relying on United States v. Van Donk, the court held that a provider’s general practice does not defeat a condition where the provider and court also articulate why the restriction is particularly needed for this defendant. Here, the district court repeatedly emphasized it was focusing on “Mr. Castellano” and his multi-year clinical history.

(c) Scope and drafting: the court’s response to overbreadth concerns

A key concern in Castellano I was the earlier condition’s “broad sweep.” In this case, the Fourth Circuit highlighted that the new condition was more precise because it used the statutory definitions in 18 U.S.C. § 2256 for “visual depiction” and “sexually explicit conduct.” That precision mattered to the court’s comfort with the condition’s fit and administrability.

(d) Mandate rule: no perpetual prohibition, and changed-circumstances exception

The mandate argument failed because the district court complied with Castellano I on remand (striking the prior condition) and because Castellano I did not purport to regulate future revocations or later-developed evidence. The Fourth Circuit leaned on Standard Oil Co. of Cal. v. United States to clarify that appellate mandates speak to the record and issues then before the appellate court.

The court also explained that even if mandate doctrine were implicated, United States v. Bell provides an exception for “significant new evidence.” The new evidence and circumstances included: additional violations, the defendant’s later consent to a narrower online pornography restriction (by waiver), and clinical testimony that his pornography use had increased in intensity and duration and interfered with treatment.

(e) Refusal to extend McLeod’s defendant-focused limitation to the government

The Fourth Circuit treated United States v. McLeod as inapposite: it restricts a defendant’s belated motions to modify conditions absent “new, unforeseen, or changed” circumstances. The panel declined to extend that limitation to the government, and added that (even if it did) the post-Castellano I record supplied new facts supporting modification.

3.3 Impact

This decision is likely to influence Fourth Circuit supervised-release practice in three main ways:

  • Reimposition after vacatur is possible: A prior appellate vacatur of a special condition—especially one vacated for lack of individualized evidence—does not create a permanent bar. If later supervision events generate a new record (e.g., relapse/escalation, violations, new treatment insights), the condition may be reconsidered.
  • Clinical testimony is a “best practice” evidentiary anchor: The opinion effectively operationalizes Castellano I by showing what satisfies it: live testimony and written assessments linking the restriction to treatment barriers and recidivism pathways in the specific defendant.
  • Drafting matters: Conditions keyed to statutory definitions (here, 18 U.S.C. § 2256) are less vulnerable to “broad sweep” concerns than colloquial terms like “pornographic material” or “nudity,” especially when courts are restricting legal expressive material.

More broadly, the case reinforces a pragmatic message: supervised release is dynamic. Appellate review polices insufficient records, but it does not disable district courts from responding to later-developed risk and treatment evidence.

4. Complex Concepts Simplified

  • Supervised release: A period of court-ordered monitoring after prison. The court can impose “conditions” to reduce risk and promote reintegration.
  • Special conditions: Extra rules beyond standard reporting requirements—e.g., restrictions on internet use, contact with minors, or access to sexual content.
  • “Reasonably related” (18 U.S.C. § 3583(d)): A condition must logically connect to the offense, the defendant’s history, and the goals of deterrence, public protection, and rehabilitation. It cannot be imposed simply because it sounds generally prudent.
  • Individualized evidence / individualized explanation: The court needs case-specific facts showing why this defendant needs this restriction, plus an on-the-record explanation tying the evidence to the supervision goals.
  • Mandate rule: After an appeal, a district court must follow the appellate court’s instructions on remand and cannot relitigate what was already decided for that record. But the mandate typically does not govern later, new events—especially in an ongoing supervision context.
  • Changed-circumstances / new-evidence exception: Even where mandate principles apply, significant new evidence can justify revisiting issues because the case is no longer in the same factual posture.
  • Using statutory definitions (18 U.S.C. § 2256): Incorporating precise statutory terms can reduce vagueness and overbreadth challenges by clarifying exactly what is prohibited.

5. Conclusion

The Fourth Circuit’s decision in United States v. Joseph Castellano clarifies that a pornography-related supervised-release condition previously vacated for lack of individualized support may be imposed later when the government supplies new, defendant-specific clinical evidence and the district court provides a tailored explanation. The court also makes clear that Castellano I did not create a perpetual prohibition under the mandate rule: mandates address the record then before the appellate court, not later supervision developments. Practically, the opinion encourages careful evidentiary development (especially treatment-provider testimony) and precise drafting when supervised-release conditions restrict otherwise legal expressive material.