Center for Biological Diversity v. U.S. Office of Surface Mining Reclamation and Enforcement

District Court, District of Columbia·Decided May 29, 2026·No. Civil Action No. 2023-3343·Published

Opinion

UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLUMBIA

CENTER FOR BIOLOGICAL DIVERSITY, et al.,

Plaintiffs,

Civil Action No. 23 - 3343 (SLS)

v.

Judge Sparkle L. Sooknanan U.S. OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, et al.,

Defendants.

MEMORANDUM OPINION

The Endangered Species Act of 1973 entrusts federal agencies with the critical task of identifying and preserving endangered and threatened species across our country. This case is about whether the Act permits those agencies to delegate certain authorities and responsibilities to state regulators in the field of coal mining. The Plaintiffs in this case are two environmental groups—the Center for Biological Diversity and Appalachian Voices—that are concerned about the risks that coal mining activities pose to threatened species living in Appalachian streams and rivers, including the Guyandotte River crayfish, Big Sandy crayfish, and candy darter. They claim that the dwindling number of streams and rivers where these creatures live are at risk of pollution by displaced sediment, chemical run-off, and other aftereffects of mining. And they contend that even brief lapses in regulatory oversight could cause significant harm to these threatened species, including their complete elimination.

The Plaintiffs brought this lawsuit to challenge a written Biological Opinion by the U.S.

Fish and Wildlife Service finding that the mining regulatory program administered by the U.S.

Office of Surface Mining Reclamation and Enforcement is unlikely to jeopardize the continued existence of threatened species. The Plaintiffs assert that the Biological Opinion flouts carefully designed procedures in the Endangered Species Act and impermissibly approves entrusting state regulators with responsibilities that lie with the federal Defendants. The Parties now cross-move for summary judgment. For the reasons below, the Court concludes that the Biological Opinion is arbitrary and capricious and must be set aside.

BACKGROUND

A. Statutory and Regulatory Background 1. The Endangered Species Act (ESA)

The ESA is “the most comprehensive legislation for the preservation of endangered species ever enacted by any nation.” Tenn. Valley Auth. v. Hill, 437 U.S. 153, 180 (1978). It “seeks to protect species of animals against threats to their continuing existence caused by man.” Lujan v. Defs. of Wildlife, 504 U.S. 555, 558 (1992). Congress tasked two agencies with administering the ESA: the Fish and Wildlife Service (FWS) and the National Marine Fisheries Service (NMFS). Nat’l Ass’n of Home Builders v. Defs. of Wildlife, 551 U.S. 644, 651 (2007). “The NMFS administers the ESA for protected marine and anadromous species (ones that migrate between freshwater and saltwater); and the FWS administers the ESA with respect to all other protected species.” Ctr. for Biological Diversity v. Zeldin, 171 F.4th 356, 365 (D.C. Cir. 2026) (citing 50 C.F.R § 402.01(b)).

“[A] species can be ‘listed’ as either ‘endangered’ or ‘threatened’” under the ESA. Id. at 364–65 (quoting 16 U.S.C. § 1533). The Act defines an endangered species as “any species which is in danger of extinction throughout all or a significant portion of its range” and a threatened species as “any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range.” 16 U.S.C. § 1532(6), (20). Once a

species has been “listed,” it gains “significant protections” under the ESA, WildEarth Guardians v. U.S. Fish & Wildlife Serv., 749 F. Supp. 3d 26, 36 (D.D.C. 2024), which “provide[s] a means whereby the ecosystems upon which endangered species and threatened species depend may be conserved” and “a program for the conservation of such endangered species and threatened species,” 16 U.S.C. § 1531(b).

Section 9 of the ESA makes it unlawful for “any person,” including private parties, States, and federal agencies, to “take” an endangered species. Id. § 1538(a)(1)(B). The term “take” means “to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or to attempt to engage in any such conduct.” Id. § 1532(19). And “Congress intended ‘take’ to apply broadly to cover indirect as well as purposeful actions.” Babbitt v. Sweet Home Chapter of Cmtys. for a Great Or., 515 U.S. 687, 704 (1995). Violators of this prohibition may face civil or criminal penalties. See 16 U.S.C. § 1540.

“Recognizing that some take can occur as a result of otherwise lawful activities, Congress created two paths to ensure that ‘incidental take’ does not jeopardize protected species or adversely modify or destroy critical habitat: The first path, under Section 7, applies to federal agency actions, and the second, under Section 10, applies to non-federal actions.” Ctr. for Biological Diversity v. Regan, 734 F. Supp. 3d 1, 15 (D.D.C. 2024) (first citing 16 U.S.C. § 1536; and then id. § 1538), aff’d sub nom., Zeldin, 171 F.4th 356. Both Section 7 and Section 10 “offer the promise of liability protection for incidental take” if certain requirements are met. Id. (first citing 16 U.S.C. §§ 1536(o)(2), 1539(a); and then 50 C.F.R. § 402.14(i)(5)).

a. Section 7 Consultation Section 7 of the ESA “prescribes the steps that federal agencies must take to ensure that their actions do not jeopardize endangered wildlife and flora.” Nat’l Ass’n of Home Builders,

551 U.S. at 652. Section 7(a)(2) provides that “[e]ach Federal agency shall, in consultation with and with the assistance of [the FWS or the NMFS], insure that any action authorized, funded, or carried out by such an agency . . . is not likely to jeopardize the continued existence of any endangered species or threatened species or result in the destruction or adverse modification of habitat of such species.” 16 U.S.C. § 1536(a)(2); see 50 C.F.R. § 402.02. “Action” is defined to cover “all activities or programs of any kind authorized, funded, or carried out, in whole or in part, by Federal agencies,” including “the granting of licenses, contracts, leases, easements, rights-of- way, permits, or grants-in-aid.” 50 C.F.R. § 402.02. And an action “jeopardize[s] the continued existence of” an endangered or threatened species if it “reasonably would be expected, directly or indirectly, to reduce appreciably the likelihood of both the survival and recovery of a listed species in the wild by reducing the reproduction, numbers, or distribution of that species.” Id. The agency proposing the action is known as the “action agency,” and the agency providing consultation— either the FWS or the NMFS—serves as the “consulting agency.” Oceana, Inc. v. Pritzker, 75 F. Supp. 3d 469, 474 n.3 (D.D.C. 2014).

The action agency must first determine whether formal consultation is required. To do this, “[e]ach federal agency shall review its actions at the earliest possible time to determine whether any action may affect listed species or critical habitat.” 50 C.F.R. § 402.14(a). “If the action agency determines—and the consulting agency concurs—that ‘the proposed action is not likely to adversely affect any listed species or critical habitat,’ then no formal consultation is required.” Ctr. for Biological Diversity, 734 F. Supp. 3d at 16 (quoting 50 C.F.R. § 402.14(b)(1)). But if the action agency “concludes after an initial review that its action ‘may affect listed species or critical habitat,’ that agency must engage in ‘consultation’ with [the FWS or the NMFS].” Id. (quoting 50 C.F.R. § 402.14(a)); see also 50 C.F.R. § 402.02 (defining “Service” as either the FWS or the

NMFS, “as appropriate”). A formal consultation under Section 7 is triggered for a discrete federal agency action or “an agency’s multiple actions on a program, region, or other basis.” 50 C.F.R. § 402.02.

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