Appalachian Voices v. FERC

139 F.4th 903 · United States Court of Appeals for the District of Columbia Circuit · June 6, 2025 · No. 24-1094

Summary

This D.C. Circuit opinion reviews a Federal Energy Regulatory Commission (FERC) order granting Mountain Valley Pipeline, LLC a three-year extension to complete its Southgate Project due to permitting delays on the related Mainline pipeline. Applying the arbitrary and capricious standard under the APA, the court holds that FERC reasonably found good cause for the extension and adequately explained its decision not to revisit prior market need and environmental impact findings. Accordingly, the court denies the petitions for review filed by environmental organizations.

Court
United States Court of Appeals for the District of Columbia Circuit
Writing for the Court
EDWARDS; HENDERSON; SRINIVASAN
Jurisdiction
United States Court of Appeals for the District of Columbia Circuit
Decision date
June 6, 2025
Docket number
24-1094
Procedural posture
Petition for review of FERC's order granting an extension of the construction deadline for the Southgate Project and declining to revisit market‑need and environmental‑impact findings.
Standard of review
Arbitrary and capricious standard under the Administrative Procedure Act, with substantial deference to the Commission's expertise.
Precedential value
published
Parties
Appalachian Voices, et al. v. Federal Energy Regulatory Commission
Disposition
affirmed

Topics

administrative lawenvironmental lawenvironmental impact reviewjudicial review of agency action

Practice areas

administrative lawenvironmental law

Questions Presented

  1. Whether FERC properly found good cause to extend the construction deadline for the Southgate Project.
  2. Whether FERC properly declined to revisit its prior market‑need and environmental‑impact findings.

Holdings

  1. The Commission reasonably found that Mountain Valley Pipeline satisfied the good‑cause standard in seeking an extension.
  2. The Commission’s decision not to revisit its prior findings on market need and environmental impacts was adequately explained and therefore upheld.

Key quotations

The Commission generally declines to reevaluate issues that already were addressed during the certification process. (at 26)
The Commission has broad discretion in exercising its authority under the Natural Gas Act. (at 27)

Factual background

Mountain Valley Pipeline, LLC sought a three‑year extension of the Southgate Project deadline because permitting and litigation delays on the Mainline, which the Southgate extension depended upon, prevented timely construction. The Commission found good cause and declined to revisit its earlier market‑need and environmental analyses. Environmental groups challenged those findings.

Procedural history

The Federal Energy Regulatory Commission issued a certificate of public convenience and necessity for the Southgate Project, set a construction deadline, and later granted an extension finding good cause. Petitioners challenged the Commission's findings. The D.C. Circuit reviewed the Commission's action under the APA's arbitrary‑and‑capricious standard.

Court Document

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