MDL 3047 is a federal multidistrict litigation before Chief Judge Yvonne Gonzalez Rogers in the Northern District of California, consolidating claims that the recommendation and engagement architecture of Meta's Facebook and Instagram, Google's YouTube, TikTok and Snap was designed to addict minors. The Judicial Panel on Multidistrict Litigation transferred the constituent actions to the Northern District of California by order filed October 6, 2022, under 28 U.S.C. § 1407 (Source: govinfo.gov; courtlistener.com). The plaintiff population comprises thousands of personal-injury claimants alongside school districts, state attorneys general and Native American tribes (Source: verusllc.com).
| Field | Value |
|---|---|
| MDL number | 3047 |
| Transferee court | N.D. Cal. |
| Transferee judge | Chief Judge Yvonne Gonzalez Rogers |
| Transfer order filed | October 6, 2022 |
| Appellate proceeding | People of the State of California v. Meta Platforms, Inc., No. 24-7032 (9th Cir.) |
| Status | Active; bellwether verdict entered March 2026; state-attorneys-general claims settled by proposed agreement of August 26, 2026, pending court approval |
Claims and the design theory
The claims are pleaded as product-design defect and failure to warn rather than as claims about user-generated content. The strategy is a direct response to Section 230 of the Communications Decency Act, 47 U.S.C. § 230(c)(1), which immunizes platforms from liability for content created by others: plaintiffs attack design features — infinite scroll, autoplay, push notifications and recommendation algorithms — rather than the material those systems surface (Inside My Advanced Topics Class 4: Everyone Described Harm (Farahany, February 2026)). The doctrinal opening for this framing is the Ninth Circuit's product-design carve-out in Lemmon v. Snap (2021), which the litigation treats as the linchpin of the design theory (Inside My Advanced Topics Class 4.2: The Shield — Section 230 (Farahany, February 2026)). The distinction the MDL turns on is the same one described at Content vs Architecture Theory of Social Media Harm: whether the alleged harm flows from what was shown or from how the system was built to show it.
The state attorneys general allege in parallel that Meta misrepresented the addictive nature of its platforms and violated state consumer-protection laws and the Children's Online Privacy Protection Act (Source: dailyjournal.com).
Procedural history
In November 2023 Gonzalez Rogers granted in part and denied in part the defendants' motions to dismiss the product-liability claims brought on behalf of children and adolescents, narrowing the claims without barring them; she found that Section 230 limited the plaintiffs' claims but did not foreclose them entirely (Source: techpolicy.press; dailyjournal.com). Gonzalez Rogers subsequently selected the first bellwether cases from among the personal-injury plaintiffs, choosing trials reflecting a range of demographic and socioeconomic communities so that outcomes would inform the remaining claims and any settlement negotiations (Source: verusllc.com).
In March 2026 a jury in the Los Angeles bellwether trial found YouTube and Meta negligent in product design and found that the negligence was a substantial factor in the plaintiff's harm (Inside My Advanced Topics Class 4: Everyone Described Harm (Farahany, February 2026)). The verdict was followed by post-trial challenges from Meta and YouTube contesting liability (Source: verusllc.com).
Ninth Circuit ruling of August 10, 2026
Meta and TikTok sought interlocutory review of the district court's Section 230 rulings, arguing that Section 230 bars not only liability but the filing of suit, and therefore also bars claims that the companies failed to warn the public about the addictive character of their platforms. On August 10, 2026 a Ninth Circuit panel of Circuit Judges Jacqueline H. Nguyen and Mark J. Bennett, sitting with District Judge Kiyo A. Matsumoto of the Eastern District of New York, affirmed Gonzalez Rogers and rejected the appeal as premature, holding that Section 230 provides a defense to liability rather than immunity from suit. Writing for the panel, Nguyen stated: "Although section 230 does not expressly provide for immunity from suit, Meta argues that such immunity should be implied. We disagree." (Source: dailyjournal.com; reuters.com).
Meta, represented at a January hearing by Davis Polk & Wardwell, had argued from the second sentence of Section 230(e)(3) — "no cause of action may be brought and no liability may be imposed" if inconsistent with the statute — that the prohibition on bringing a cause of action would be superfluous unless it also barred the filing of a lawsuit. The panel found a better explanation in Congress having taken what it called a "belt and suspenders" approach, noting that original versions of the bill did not include the entire clause and that "it would be surprising if these 'minor modifications' included the addition of immunity from suit." Because Meta was not immune from suit, the panel concluded the issue could not be heard on interlocutory appeal before final judgment (Source: dailyjournal.com).
Reuters reported that the ruling leaves the companies facing more than 3,000 lawsuits filed in federal court, and that Meta and Google, which have denied the claims, said they would appeal (Source: reuters.com). TikTok is not a defendant in the state attorneys general's case but is a co-defendant in many of the school-district suits within the same MDL (Source: dailyjournal.com).
The same order denied Meta's request to postpone a trial then set to begin on Wednesday, August 12, 2026 in Oakland, brought by 29 state attorneys general and alleging that the company illegally collected and used children's data, designed its platforms to keep young users engaged, and misled consumers about their safety. Meta had argued the trial could not proceed while its appeal remained outstanding (Source: reuters.com; dailyjournal.com).
State attorneys general trial
Gonzalez Rogers resolved a structural dispute over how the state attorneys general's claims would be tried by adopting a hybrid approach: Colorado, California, Kentucky and New Jersey try their state consumer-protection claims together, while she also hears the federal Children's Online Privacy Protection Act claims brought by the wider group of states, with an advisory jury whose findings may inform her ruling. Meta had sought a series of smaller trials grouped by similar state laws, arguing that jurors would struggle with differing legal standards. The suit was filed in 2023. Kentucky Attorney General Russell Coleman described it as the largest consumer protection lawsuit in American history (Source: reuters.com).
The attorneys general for Colorado, California, New Jersey and Kentucky delivered opening statements in Oakland federal court on August 18, 2026, leading a bipartisan group of 29 states alleging that Meta Platforms designed Facebook and Instagram to be addictive to minors and misled consumers about their safety. The eight-person jury serves in an advisory capacity to Gonzalez Rogers, who will decide the case. Mark Zuckerberg and Instagram head Adam Mosseri are expected to testify. Meta has said penalties could reach $1.4 trillion against a market capitalization of $1.5 trillion; the attorneys general said at a hearing the prior week that the figure could be closer to $200 billion. The states also seek an order requiring age restrictions and the elimination of infinite scroll nationwide (Source: reuters.com). Deputy California attorney general Megan O'Neill told the court that Meta "designed platforms so that children would keep coming back," while Meta attorney Paul Schmidt said the company strongly disagrees with the states' case and questioned whether social media addiction is scientifically established (Source: axios.com). Former Meta engineering director Arturo Bejar gave the first testimony on August 19, 2026, telling the court that Zuckerberg fostered a culture treating child safety as secondary to growth. Bejar said "if Mark makes something a priority, mountains move in months" and "you just cannot trust Mark Zuckerberg with kids." Under cross-examination by Meta lawyer Brian Stekloff, Bejar acknowledged that Meta employs hundreds of qualified safety staff and that he had not worked directly with Zuckerberg during his 2019-2021 stint as a contractor (Source: reuters.com).
Proposed settlement of the state attorneys general claims
Meta and the states reached a proposed settlement on August 26, 2026, according to a statement from California Attorney General Rob Bonta, eight days into a trial that had been expected to run into early October and one day after Instagram head Adam Mosseri testified. Bonta's office put the payment at $17 billion in penalties to the states over ten years; other accounts of the same announcement gave $16.7 billion, $17.1 billion and $18 billion, and the discrepancy is unresolved. The settlement resolves the cases and claims of 51 jurisdictions and requires approval by Gonzalez Rogers (Source: npr.org; axios.com).
Under the terms Bonta's office described, Meta accepted a default two-hour daily time limit for users under 18 and a nighttime block from midnight to 6am, both liftable only by a parent; default nighttime and schooltime notification blocks; a ban on displaying like and reaction counts on minors' posts; a ban on cosmetic-surgery image filters for minors; and an option for young users to receive a non-personalized feed not run by an algorithm targeting them with content. Meta must also engage an independent auditor with access to information and the right to communicate with the attorneys general, and is subject to an injunction against further false, misleading or deceptive statements about its safety features. Meta denied the allegations in court (Source: npr.org).
The design remedies track the mechanisms the design-defect theory targets — default limits, notification timing, and an opt-out from algorithmic targeting — rather than the content the systems surface. The settlement covers the state attorneys general claims; the personal-injury and school-district claims consolidated in the same MDL are not stated to be resolved by it.
Relation to other proceedings
The design theory advanced in MDL 3047 runs in parallel with state-court and state-enforcement actions raising the same architecture-versus-content distinction, including New Mexico v. Meta Platforms (youth harm and chatbot decree) and State of Tennessee v. Meta Platforms (Instagram design trial). In April 2026 the Massachusetts Supreme Judicial Court held on appeal from a motion to dismiss that Section 230 did not bar the state's claims that Meta engaged in unfair business practices by building a platform addictive to teenagers and failing to warn the public about it (Source: beneschlaw.com).
Relationships
- instance-of: Content vs Architecture Theory of Social Media Harm, AI Liability
- litigates: Meta AI, Google DeepMind
- depends-on: Inside My Advanced Topics Class 4.2: The Shield — Section 230 (Farahany, February 2026) (Section 230 doctrine and the Lemmon v. Snap carve-out)
- supports: Inside My Advanced Topics Class 4: Everyone Described Harm (Farahany, February 2026)
- related: New Mexico v. Meta Platforms (youth harm and chatbot decree), State of Tennessee v. Meta Platforms (Instagram design trial), NetChoice v. Bonta (CAADCA litigation), An Introduction to Section 230 — Eric Goldman (Section 230 Primer, 2022), Cognitive Liberty