Amchem Products, Inc. v. Windsor

Background

A group of 20 former asbestos manufacturers offered a global settlement creating a fund and administrative claims process for people exposed to asbestos, including those not yet sick. In a single-day filing parties asked a federal judge to certify a nationwide class that would bind current and future claimants and enjoin separate lawsuits. The District Court approved the settlement, certified an opt-out class, and issued an injunction; objectors appealed.

Reasoning

The Supreme Court considered whether a court may certify a "settlement-only" class that seeks to resolve both present and future personal-injury claims. The Court said settlement terms are relevant but do not replace the federal class-action criteria. It affirmed the Third Circuit: the proposed class failed because individual factual and legal differences prevented common questions from predominating, and the named representatives could not fairly protect both already-injured and exposure-only claimants. The Court therefore upheld decertification.

Real world impact

The decision limits courts’ ability to approve very broad, nationwide settlement classes that bind future claimants. It signals that large mass-tort settlements must meet Rule 23's commonality and adequacy standards or rely on narrower classes, subclasses, or legislative solutions. The judgment leaves the underlying state law claims and individual lawsuits available where class certification cannot properly bind absent claimants.

Dissents or concurrances

Justice Breyer, joined by Justice Stevens, agreed settlement is relevant but would have given more deference to the District Court’s factual findings and favored further appellate review rather than immediate affirmance.