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Chevron deference is a judicial doctrine governing how courts interpret and apply federal agency interpretations of ambiguous statutes. Established by the U.S. Supreme Court in *Chevron U.S.A., Inc. v. Natural Resources Defense Council, Inc.* (1984), this principle mandates a two-step analysis for reviewing agency actions. First, courts determine whether Congress has directly addressed the specific question at issue. If the statute is clear, judicial review ends; if ambiguous or silent, courts defer to the agency's reasonable interpretation of its statutory authority. This doctrine has shaped administrative law by delineating the balance between judicial and executive branch powers in regulatory governance.

As of 2024, Chevron deference applies when a statute is ambiguous on its face and the agency's interpretation is deemed reasonable. Courts traditionally review agency actions under the “arbitrary and capricious” standard set by the *Administrative Procedure Act* (APA), but Chevron added an additional layer of deference for statutory interpretations. However, the doctrine has faced significant legal challenges.

The 2022 case *West Virginia v. EPA* curbed Chevron's application to cases involving the “major questions doctrine,” requiring explicit congressional authorization for significant regulatory actions by agencies. A watershed moment occurred in *Loper Bright Enterprises v. Raimondo* (2024), where the Supreme Court overruled Chevron deference, holding that courts are not required to defer to agency interpretations of ambiguous statutes. Instead, courts now apply “Skidmore deference,” treating agency interpretations as persuasive but non-binding authority.

Despite this shift, some lower courts have continued to employ Chevron-like reasoning, leading to legal uncertainty. Post-*Loper Bright*, the legal landscape remains fluid, with ongoing debates over the appropriate role of courts in reviewing agency actions and the extent to which expertise should inform statutory interpretation.

Additionally, the 2005 case *National Cable & Telecommunications Ass'n v. Brand X* affirmed that agencies may reasonably reinterpret their own regulations under Chevron deference, provided the new interpretation is not arbitrary or capricious.

The proper scope of Chevron deference has been a subject of intense debate among legal scholars, judges, and policymakers. textualism-originalism-chevron-viewpoint advocates often reject Chevron as an overreach of judicial authority, favoring strict textualist or originalist methods to resolve statutory ambiguities without deferring to agencies. Conversely, administrative-law-scholars-chevron-viewpoint scholars defend the doctrine for promoting regulatory stability and leveraging agency expertise in complex technical fields.

progressives-liberals-chevron-viewpoint generally support Chevron deference as essential for empowering agencies to implement policy goals effectively, while conservatives-libertarians-chevron-viewpoint often oppose it, arguing that it grants excessive power to unelected bureaucrats and undermines democratic accountability. business-interests-chevron-viewpoint frequently critique Chevron for creating regulatory uncertainty, whereas public-interest-groups-chevron-viewpoint advocate for its preservation to ensure robust agency action on issues like environmental protection.

Legal academia remains divided over the balance between judicial and executive branch authority in statutory interpretation. Some scholars argue that courts should resolve ambiguities independently, while others contend that deference fosters consistent governance and policy coherence across administrations.

* administrative-procedure-act * major-questions-doctrine * textualism-in-constitutional-interpretation * regulatory-response-to-chevron-overturning

1. *Chevron U.S.A., Inc. v. Natural Resources Defense Council, Inc.*, 467 U.S. 837 (1984). 2. Richard Revesz, “Assessing the Future of the Administrative State,” *University of Chicago Law Review* (2023). 3. Christopher J. Walker, “Chevron in the Circuit Courts,” *Michigan Law Review* 116 (2017): 1–74.