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MDL 2165Environmental & Toxic Exposure

Endangered Species Act Section 4 Deadline Litigation

Delays in meeting ESA Section 4 deadlines directly contribute to species decline by postponing critical protections. The failure to list species promptly allows ongoing threats—habitat destruction, invasive species, disease—to persist unmitigated, increasing extinction risk. Legal challenges are governed by statutory deadlines under the ESA and the Administrative Procedure Act, with recent case law clarifying the start points and durations of these limitations.

DCSr. District Judge Emmet G. SullivanSource: JPML · Updated March 24, 2026

1

Pending actions

40

Total actions filed

Active

Status

06/08/2010

Established

Who qualifies

Plaintiffs qualify by demonstrating that federal agencies failed to meet statutory deadlines under Section 4 of the ESA for species listing decisions, resulting in delayed protections that exacerbate threats like habitat loss, invasive species, and disease. Challenges must be filed within specific statutory periods, such as before March 31, 2017, for certain petitions, and within six years for APA challenges.

Products involved

  • Species listed under the Endangered Species Act (e.g., Greater Sage-Grouse, New England Cottontail, Lesser Prairie-Chicken, Gunnison Sage-Grouse)

Alleged injuries

  • Habitat destruction
  • Population decline
  • Increased extinction risk

This page is generated from the official JPML pending-MDL report and public court records, refreshed monthly. It is provided for attorney reference and is not legal advice.

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