State of Colorado v. Meta Platforms — Ninth Circuit dismisses interlocutory Section 230 appeal for lack of jurisdiction

Case
State of Colorado v. Meta Platforms, Inc.
Court
U.S. Court of Appeals for the Ninth Circuit
Judge
Jacqueline H. Nguyen (Barack Obama, 2012)
Date Decided
August 10, 2026
Docket No.
24-7265
Topics
Section 230, Appellate Jurisdiction, Collateral Order Doctrine, Social Media
Source
Read the full opinion

Background

Thousands of lawsuits consolidated in multidistrict litigation alleged that Meta’s Facebook and Instagram platforms encourage addictive behavior, fail to verify users’ ages, help adolescents bypass parental controls, and inadequately protect users from harmful content. The district court organized the litigation into several tracks, including claims by state attorneys general, individuals, school districts, and local governments.

Meta moved to dismiss various claims, arguing in part that Section 230 of the Communications Decency Act barred them. The district court ruled that Section 230 limited some claims involving Meta’s role as a publisher of third-party content but allowed other claims to proceed. Meta appealed without obtaining certification for an interlocutory appeal, contending that the partial denial of its Section 230 defense was immediately appealable under the collateral order doctrine. TikTok joined Meta’s arguments, and plaintiffs filed protective cross-appeals.

The Court’s Holding

The Ninth Circuit dismissed Meta’s and TikTok’s appeals and the plaintiffs’ conditional cross-appeals for lack of appellate jurisdiction. It held that Section 230 supplies a defense to liability, not immunity from suit. Because a denial of that defense can be reviewed effectively after final judgment, it does not satisfy the collateral order doctrine’s requirement that an order be effectively unreviewable later.

The court also concluded that the challenged rulings failed the doctrine’s other two requirements. The district court had not conclusively resolved the Section 230 issues because it allowed certain claims to proceed “for now” and indicated that it might revisit them as the litigation developed. And the Section 230 analysis was not completely separate from the merits because it required examination of each claim’s factual allegations and theory of liability to determine whether the claim treated a defendant as the publisher or speaker of third-party content.

Key Takeaways

  • Section 230 provides online-service defendants a defense to liability, not a right to avoid suit altogether.
  • A district court’s denial of a Section 230 defense ordinarily cannot be appealed immediately under the collateral order doctrine.
  • Courts applying Section 230 must examine each claim’s allegations and theory of liability, tying the statutory analysis closely to the merits.

Why It Matters

The decision prevents social-media defendants from treating adverse Section 230 rulings as automatically appealable collateral orders. Unless another route to interlocutory review is available, defendants generally must litigate the case to final judgment before seeking appellate review of such rulings.

The opinion also clarifies that prior Ninth Circuit decisions loosely describing Section 230 as “immunity from suit” did not establish a jurisdictional rule because those decisions had not squarely considered the collateral order doctrine.

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