18 C.F.R. § 385.2008
Extensions of time (Rule 2008)
(a) Except as otherwise provided by law, the time by which any person is required or allowed to act under any statute, rule, or order may be extended by the decisional authority for good cause, upon a motion made before the expiration of the period prescribed or previously extended.
(b) If any motion for extension of time is made after the expiration of a specified time period, the decisional authority may permit performance of the act required or allowed, if the movant shows extraordinary circumstances sufficient to justify the failure to act in a timely manner.
Notes of Decisions
Cited in 2
cases (2 in the last 5 years), 2024–2025 · leading case: Sierra Club v. FERC, 97 F.4th 16 (D.C. Cir. 2024).
Sierra Club v. FERC, 97 F.4th 16 (D.C. Cir. 2024). “If the project developer requests an extension of that deadline, FERC generally will grant the request if the developer (i) shows “good cause” for needing the extension, in a motion made before the deadline expires, 18 C.F.R. § 385.2008 (a), and (ii) acts “within a timeframe…”
Appalachian Voices v. FERC, 139 F.4th 903 (D.C. Cir. 2025). “18 C.F.R. § 385.2008 (a) (2024). Good cause “can be shown by a project sponsor demonstrating that it made good faith efforts to meet its deadline but encountered circumstances beyond its control.”
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