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Humane Society of the United States v. Ryan Zinke (Lead) Case Brief
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Case Brief Summary & Legal Analysis
tl;dr: The Fish and Wildlife Service (FWS) delisted a segment of gray wolves. The court held that while the FWS has authority to delist population segments, its action was arbitrary and capricious because it failed to analyze the impact on the remaining wolves or the loss of historical range.
Legal Significance: An agency’s interpretation of an ambiguous statute may be permissible under Chevron, but its application of that interpretation is arbitrary and capricious if it fails to consider critical aspects of the problem, such as the consequences of segmenting a protected group or the impact of historical data.
Humane Society of the United States v. Ryan Zinke (Lead) Law School Study Guide
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Case Facts & Court Holding
Key Facts & Case Background
The gray wolf was listed as endangered under the Endangered Species Act (ESA). After populations in the Western Great Lakes (WGL) region recovered, the Fish and Wildlife Service (FWS) engaged in multiple attempts to delist them. In 2011, the FWS issued a final rule that simultaneously (1) designated a Western Great Lakes Distinct Population Segment (DPS) of gray wolves, carving it out from the broader, already-listed species, and (2) removed this newly created DPS from the ESA’s protections. The FWS justified its action based on a Solicitor’s Opinion concluding the ESA allows for such a ‘carve-out and delist’ procedure. In its analysis, the FWS interpreted the ESA term “range” to mean the species’ “current range,” not its historical range. The Humane Society challenged the rule, arguing the FWS lacked the statutory authority to designate a DPS for the sole purpose of delisting it and that the agency’s decision-making process was flawed under the Administrative Procedure Act (APA). The district court vacated the rule, and the FWS appealed.
Court Holding & Legal Precedent
Issue: Did the Fish and Wildlife Service act arbitrarily and capriciously in violation of the Administrative Procedure Act when it delisted a newly-designated distinct population segment of gray wolves without analyzing the impact of the delisting on the remaining listed population or the effect of historical range loss on the segment’s current viability?
Yes. The FWS’s delisting rule was arbitrary and capricious. While the agency Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit ani
IRAC Legal Analysis
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IRAC (Issue, Rule, Analysis, Conclusion) is the exact format professors want to see in your exam answers. Our exclusive Flash-to-Full briefs combine holding, analysis, and rule statements formatted to match what A+ students produce in exams. These structured briefs help reinforce the essential legal reasoning patterns expected in law school.
Legal Issue
Did the Fish and Wildlife Service act arbitrarily and capriciously in violation of the Administrative Procedure Act when it delisted a newly-designated distinct population segment of gray wolves without analyzing the impact of the delisting on the remaining listed population or the effect of historical range loss on the segment’s current viability?
Conclusion
This case demonstrates that an agency's statutory interpretation can survive Chevron review, Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis n
Legal Rule
Under the Chevron framework, a court defers to an agency's reasonable interpretation Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla p
Legal Analysis
The court applied a two-part analysis. First, under Chevron, it examined the Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostru
Flash-to-Full Case Opinions
Flash Summary
- The Fish & Wildlife Service (FWS) may lawfully designate a Distinct