Background
Five people living within five miles of Seattle-Tacoma International Airport brought a proposed class action against Alaska Air Group, Delta Air Lines, and the Port of Seattle. They alleged that aircraft exhaust and particulate matter from aircraft bodies accumulated beneath takeoff and landing paths, harming residents’ health, contaminating property, and reducing property values.
The plaintiffs asserted Washington-law claims for negligence, battery, continuing intentional trespass, and public nuisance, along with an inverse-condemnation claim under the Washington Constitution. They sought damages, declaratory and injunctive relief, property remediation, and medical monitoring. The district court denied the defendants’ motions to dismiss but certified its order for interlocutory appeal.
The Court’s Holding
The Ninth Circuit first held that the district court had subject-matter jurisdiction. The lawsuit was not an impermissible collateral attack on agency action because the complaint challenged a broad course of conduct rather than any particular EPA or FAA order. The possibility that later proceedings might implicate agency decisions did not require dismissal based on the complaint’s allegations.
The court nevertheless held that Section 233 of the Clean Air Act, 42 U.S.C. § 7573, expressly preempted every claim in the operative complaint. The asserted state-law and state-constitutional duties concerned emissions of air pollutants directly from aircraft and engines. Although states may enforce standards identical to federal aircraft-emission standards, the plaintiffs did not allege that the defendants violated any federal standard. The court reversed the order denying dismissal and remanded for further proceedings without reaching the defendants’ Airline Deregulation Act or implied-preemption arguments.
Key Takeaways
- A claim is not a prohibited collateral attack merely because it concerns heavily regulated aviation activity; it must be inescapably intertwined with review of a particular agency order.
- Clean Air Act Section 233 reaches state common-law and constitutional duties concerning pollutants emitted directly from aircraft bodies and engines in flight.
- A state-law claim may parallel an applicable federal aircraft-emission standard, but the complaint must at least allege a violation of federal law to avoid express preemption on that basis.
Why It Matters
The decision sharply limits state tort and constitutional claims seeking relief for aircraft pollution when those claims would impose emission-related duties different from federal standards. It also clarifies that California v. Navy’s aircraft-engine test-cell analysis does not control claims targeting emissions released directly from aircraft in flight.
At the same time, the ruling preserves district-court jurisdiction over aviation-related disputes that do not challenge an identifiable final agency action, distinguishing jurisdictional collateral-attack principles from merits-based federal preemption.