Kisor v. Wilkie

AFFAIRS certiorari to the united states court of appeals for

the federal circuit No. 18–15. Argued March 27, 2019—Decided June 26, 2019 Petitioner James Kisor, a Vietnam War veteran, first sought disability ben-efts from the Department of Veterans Affairs (V A) in 1982, alleging that he had developed post-traumatic stress disorder from his military service. The agency denied his initial request, but in 2006, Kisor moved to reopen his claim. The V A this time agreed he was eligible for bene-fits, but it granted those benefits only from the date of his motion to reopen, not (as Kisor had requested) from the date of his first application. The Board of Veterans' Appeals—a part of the V A—affirmed that retroactivity decision, based on its interpretation of an agency rule governing such claims. The Court of Appeals for Veterans Claims affirmed. The Federal Circuit also affirmed, but it did so by applying a doctrine called Auer (or sometimes, Seminole Rock) deference. See Auer v. Robbins, 519 U. S. 452; Bowles v. Seminole Rock & Sand Co., 325 U. S. 410. Under that doctrine, this Court has long deferred to an agency's reasonable reading of its own genuinely ambiguous regulations. The Court of Appeals concluded that the V A regulation at issue was ambiguous, and it therefore deferred to the Board's interpretation of the rule. Kisor now asks the Court to overrule Auer , as well as its predecessor Seminole Rock , discarding the deference those decisions give to agencies. Held: The judgment is vacated and remanded. 869 F. 3d 1360, vacated and remanded. Justice Kagan delivered the opinion of the Court with respect to Parts I, II–B, III–B, and IV , holding that Auer and Seminole Rock are not overruled. Pp. 573–580, 586–590. (a) This Court's deference doctrine is rooted in a presumption that Congress intended for courts to defer to agencies when they interpret their own ambiguous rules. The Court adopts that presumption for a set of reasons related to the comparative attributes of courts and agencies in answering interpretive questions. But when the reasons for the presumption do not hold up, or when countervailing reasons outweigh them, courts should not give deference to an agency's reading. The Court has thus cabined Auer 's scope in varied and critical ways.

First and foremost, a court should not afford Auer deference unless, after exhausting all the “traditional tools” of construction, Chevron U. S. A. Inc. v. Natural Resources Defense Council, Inc., 467 U. S. 837, 843, n. 9, the regulation is genuinely ambiguous. A court must carefully consider the text, structure, history, and purpose of a regulation before resorting to deference. If genuine ambiguity remains, the agency's reading must still fall “within the bounds of reasonable interpretation.” Arlington v. FCC , 569 U. S. 290, 296. And even then, not every reasonable agency reading of a genuinely ambiguous rule should receive Auer deference. Rather, a court must also make an independent inquiry into whether the character and context of the agency interpretation entitles it to controlling weight. See, e. g., Christopher v. SmithKline Beecham Corp., 567 U. S. 142, 155. The inquiry along this dimension does not reduce to an exhaustive test, but the Court has laid out some especially important markers for identifying when Auer deference is and is not appropriate. To begin with, the regulatory interpretation must be the agency's authoritative or official position, rather than any more ad hoc statement not reflecting the agency's views. Next, the agency's interpretation must in some way implicate its substantive expertise, as the basis for deference ebbs when the subject matter of a dispute is distant from the agency's ordinary duties. Finally, an agency's reading of a rule must refect its “fair and considered judgment.” Auer , 519 U. S., at 462. A court should decline to defer, for example, to a merely “ `convenient litigating position,' ” Christopher, 567 U. S., at 155, or to a new interpretation that creates “unfair surprise” to regulated parties, Long Island Care at Home, Ltd. v. Coke, 551 U. S. 158, 170. Pp. 573–580. (b) Stare decisis cuts strongly against overruling Auer. Adherence to precedent is “a foundation stone of the rule of law,” Michigan v. Bay Mills Indian Community , 572 U. S. 782, 798, and any departure from the doctrine demands “special justification,” Halliburton Co. v. Erica P . John Fund, Inc., 573 U. S. 258, 266. That is even more than usually so in the circumstances here. First, Kisor asks the Court to overrule a “long line of precedents”—each one reaffirming the rest and going back 75 years or more. Bay Mills, 572 U. S., at 798. Second, because Auer deference pervades the whole corpus of administrative law, abandoning it would cast doubt on many settled constructions of rules. And third, even if the Court is wrong about Auer , “Congress remains free to alter what [the Court has] done.” Patterson v. McLean Credit Union, 491 U. S. 164, 172–173. For approaching a century, Congress has let this deference regime work side-by-side with both the Administrative Procedure Act (APA) and the many statutes delegating rulemaking

power to agencies. This Court would thus need a particularly “special justification” to now reverse Auer.

Kisor offers nothing of that ilk. Nearly all of his arguments relate to whether the doctrine is wrong or poorly reasoned. He does not claim that Auer deference is “unworkable,” a traditional basis for overruling a case, Patterson, 491 U. S., at 173, or point to changes in legal rules that make Auer a “doctrinal dinosaur,” Kimble v. Marvel Entertainment, LLC , 576 U. S. 446, 458. Instead, his lone special justification is that the administrative state has evolved substantially since this Court decided Seminole Rock in 1945. It is true that agencies have far-reaching influence today; that is one reason the Court has taken care to reinforce the limits of Auer deference. But it is no answer to the growth of agencies for courts to take over their expertise-based, policy-making functions. Pp. 586–589. (c) Turning to Kisor's own case, a remand is necessary for two reasons. First, the Federal Circuit jumped the gun in declaring the V A's regulation ambiguous before bringing all its interpretive tools to bear on the question. Second, the Federal Circuit assumed too fast that Auer deference should apply in the event of genuine ambiguity, rather than assessing whether the interpretation is of the sort that Congress would want to receive deference. On remand, the Court of Appeals must reconsider whether Auer deference is warranted, bearing in mind the principles outlined in this opinion. Pp. 589–590. Justice Kagan, joined by Justice Ginsburg , Justice Breyer , and Justice Sotomayor , concluded in Parts II–A and III–A: (a) Auer deference is rooted in a presumption that Congress would generally want the agency to play the primary role in resolving regulatory ambiguities. See Martin v. Occupational Safety and Health Review Comm'n, 499 U. S. 144, 151–153. In part, the presumption arises because the agency that promulgated a rule is in the “better position [to] reconstruct” its original meaning. Id., at 152. In still greater measure, the presumption stems from an awareness that resolving genuine regulatory ambiguities often “ `entail[s] the exercise of judgment grounded in policy concerns,' ” an area where agencies have a comparative advantage over courts. Thomas Jefferson Univ. v. Shalala, 512 U. S. 504, 512. Finally, the presumption reflects the well-known bene-fits of uniformity in interpreting ambiguous rules. Auer deference promotes “resolving interpretive issues by uniform administrative decision, rather than piecemeal by litigation,” Ford Motor Credit Co. v. Milhollin, 444 U. S. 555, 568. Pp. 566–573. (b) None of Kisor's arguments provide good reason to reconsider Auer deference. First, he claims that Auer is inconsistent with the APA's judicial review provision, which instructs reviewing courts to

“deter mine the meaning” of an agency action. 5 U. S. C. § 706. Even when a court defers to a regulatory reading, however, it acts consistently with Section 706. That provision does not specify the standard of review a court should use in “determin[ing] the meaning” of an ambiguous rule. This Court thus presumes that Congress would want courts to do so by reviewing agency interpretations for reasonableness. That is especially so because Section 706, when enacted, was understood to restate the present law of judicial review—which would have included deference under Seminole Rock. Nor does Auer circumvent the APA's rulemaking requirements, which require regulations to go through notice and comment before they can bind third parties. Even though a court might defer to an agency's interpretation of a regulation, the agency's interpretation itself never forms the basis for an enforcement action. Rather, an agency bringing an enforcement action must always rely on a rule that went through notice and comment. And courts, in turn, always retain the final authority to approve—or not—an agency's reading of that notice-and-comment rule. See Perez v. Mortgage Bankers Assn., 575 U. S. 92, 104, n. 4.

Kisor's policy and constitutional arguments fail just as roundly. As a policy matter, he contends that Auer encourages agencies to issue vague and open-ended regulations, confident that they can later impose whatever interpretation of those rules they prefer. But no real evidence backs up that assertion and strong incentives cut in the opposite direction. Finally, Kisor asserts that Auer deference violates “separation -of-powers principles” by vesting both legislative and judicial functions in one branch. If that objection is to agencies' usurping the interpretive role of courts, Auer—when properly understood and applied—does no such thing. And if the objection is instead to the supposed commin-gling of functions within an agency, this Court has explained that even when agency “activities take `legislative' and `judicial' forms,” they continue to be “exercises of the `executive Power,' ” and thus raise no constitutional concerns. Arlington, 569 U. S., at 304–305, n. 4. Pp. 580–586. Kagan, J., announced the judgment of the Court and delivered the opinion of the Court with respect to Parts I, II–B, III–B, and IV , in which Roberts, C. J., and Ginsburg, Breyer, and Sotomayor, JJ., joined, and an opinion with respect to Parts II–A and III–A, in which Ginsburg, Breyer, and Sotomayor, JJ., joined. Roberts, C. J., filed an opinion concurring in part, post, p. 590. Gorsuch, J., filed an opinion concurring in the judgment, in which Thomas, J., joined, in which Kavanaugh, J., joined as to Parts I, II, III, IV , and V , and in which Alito, J., joined as to Parts I, II, and III, post, p. 592. Kavanaugh, J., filed an opinion concurring in the judgment, in which Alito, J., joined, post, p. 631.

Paul W . Hughes argued the cause for petitioner . With him on the briefs were Michael B. Kimberly , Andrew J . Pin-cus, Charles A. Rothfeld, E . Brantley Webb , Kenneth M. Carpenter, and Eugene R . Fidell.

Solicitor General Francisco argued the cause for respondent. With him on the brief were Assistant Attorney General Hunt, Deputy Solicitor General Wall, Deputy Assistant Attorney General Mooppan, Matthew Guarnieri, Mark B . Stern, and Daniel Aguilar .*

This Court has often deferred to agencies' reasonable readings of genuinely ambiguous regulations. We call that practice Auer deference, or sometimes Seminole Rock deference, after two cases in which we employed it. See Auer v. Robbins, 519 U. S. 452 (1997); Bowles v. Seminole Rock & Sand Co., 325 U. S. 410 (1945). The only question presented here is whether we should overrule those decisions, discarding the deference they give to agencies. We answer that question no. Auer deference retains an important role in construing agency regulations. But even as we uphold it, we reinforce its limits. Auer deference is sometimes appropriate and sometimes not. Whether to apply it depends on a range of considerations that we have noted now and again, but compile and further develop today. The deference doc-

Gaziano; for the Southeastern Legal Foundation et al. by Kimberly S. Hermann, Braden Boucek, Robert Henneke , Jonathan Riches, and Aditya Dynar; for State and Local Government Associations by Allyson N . Ho , Kathryn Cherry , Bradley G. Hubbard, and Lisa E. Soronen; for the Utility Air Regulatory Group by Elbert Lin, F. William Brownell, Henry V . Nickel, and Nash E . Long III; for the Washington Legal Foundation by Corbin K. Barthold and Cory L . Andrews; for Ronald A. Cass et al. by Mr . Cass, pro se; for Stephen C. Connaker et al. by William J. Brown, Jr., and Matthew K. Wegner; for Jeremy C. Doerre by Mr. Doerre , pro se; for Jeff S. Howard by Shawn T . Welch; and for Thomas Merrill by William M. Jay and Mr . Merrill, pro se.

Briefs of amici curiae urging affirmance were filed for Administrative Law Scholars by Donald B . Verrilli, Jr., and Ronald M. Levin and Gillian E . Metzger, both pro se; and for Sen. Sheldon Whitehouse by Mr . Whitehouse , pro se, and Jason P. Steed. Briefs of amici curiae were filed for Professors of Administrative Law and Federal Regulation by Vincent Levy , Daniel M. Sullivan, Gregory Dubinsky , and Samuel Estreicher , pro se; and for Public Citizen by Scott L. Nelson and Allison M. Zieve.

We begin by summarizing how petitioner James Kisor's case made its way to this Court. Truth be told, nothing recounted in this Part has much bearing on the rest of our decision. The question whether to overrule Auer does not turn on any single application, whether right or wrong, of that decision's deference doctrine. But a recitation of the facts and proceedings below at least shows how the question presented arose.

Kisor is a Vietnam War veteran seeking disability benefits from the Department of Veterans Affairs (V A). He first applied in 1982, alleging that he had developed post-traumatic stress disorder (PTSD) as a result of his participation in a military action called Operation Harvest Moon. The report of the agency's evaluating psychiatrist noted Kisor's involvement in that battle, but found that he “d[id] not suffer from PTSD.” App. 12, 14. The V A thus denied Kisor benefits. There matters stood until 2006, when Kisor moved to reopen his claim. Based on a new psychiatric report, the V A this time agreed that Kisor suffered from PTSD. But it granted him benefits only from the date of his motion to reopen, rather than (as he requested) from the date of his first application.

The Board of Veterans' Appeals—a part of the V A, represented in Kisor's case by a single administrative judge— affirmed that timing decision, based on its interpretation of an agency rule. Under the V A's regulation, the agency could grant Kisor retroactive benefits if it found there were “relevant official service department records” that it had not considered in its initial denial. See 38 CFR § 3.156(c)(1) (2013). The Board acknowledged that Kisor had come up with two new service records, both confirming his participa-

The Court of Appeals for the Federal Circuit also affirmed, but it did so based on deference to the Board's interpretation of the V A rule. See Kisor v. Shulkin, 869 F. 3d 1360, 1368 (2017). Kisor had argued to the Federal Circuit that to count as “relevant,” a service record need not (as the Board thought) “counter[ ] the basis of the prior denial”; instead, it could relate to some other criterion for obtaining disability benefits. Id., at 1366 (internal quotation marks omitted). The Federal Circuit found the regulation “ambiguous” as between the two readings. Id., at 1367. The rule, said the court, does not specifically address “whether `relevant' records are those casting doubt on the agency's prior [rationale or] those relating to the veteran's claim more broadly.” Ibid. So how to choose between the two views? The court continued: “Both parties insist that the plain regulatory language supports their case, and neither party's position strikes us as unreasonable.” Id., at 1368. Because that was so, the court believed Auer deference appropriate: The agency's construction of its own regulation would govern unless “plainly erroneous or inconsistent with the V A's regulatory framework.” Ibid. (internal quotation marks omitted). Applying that standard, the court upheld the Board's reading—and so approved the denial of retroactive benefits.

We then granted certiorari to decide whether to overrule Auer and (its predecessor) Seminole Rock. 586 U. S. 1050 (2018).

A

Begin with a familiar problem in administrative law: For various reasons, regulations may be genuinely ambiguous. They may not directly or clearly address every issue; when applied to some fact patterns, they may prove susceptible to more than one reasonable reading. Sometimes, this sort of ambiguity arises from careless drafting—the use of a dangling modifier, an awkward word, an opaque construction. But often, ambiguity reflects the well-known limits of expression or knowledge. The subject matter of a rule “may be so specialized and varying in nature as to be impossible”—or at any rate, impracticable—to capture in its every detail. SEC v. Chenery Corp., 332 U. S. 194, 203 (1947). Or a “problem[ ] may arise” that the agency, when drafting the rule, “could not [have] reasonably foresee[n].” Id., at 202. Whichever the case, the result is to create real uncertainties about a regulation's meaning.

Consider these examples:

• In a rule issued to implement the Americans with Disa-

bilities Act (ADA), the Department of Justice requires theaters and stadiums to provide people with disabilities “lines of sight comparable to those for members of the general public.” 28 CFR pt. 36, App. A, p. 563 (1996). Must the Washington Wizards construct wheelchair seating to offer lines of sight over spectators when they rise to their fleet? Or is it enough that the facility offers

comparable views so long as everyone remains seated? See Paralyzed Veterans of Am. v. D. C. Arena L. P ., 117 F. 3d 579, 581–582 (CADC 1997). • The Transportation Security Administration (TSA) requires that liquids, gels, and aerosols in carry-on baggage be packed in containers smaller than 3.4 ounces and carried in a clear plastic bag. Does a traveler have to pack his jar of truffle pâté in that way? See Laba v. Copeland, 2016 WL 5958241, *1 (WDNC, Oct. 13, 2016). • The Mine Safety and Health Administration issues a rule requiring employers to report occupational diseases within two weeks after they are “diagnosed.” 30 CFR § 50.20(a) (1992). Do chest X-ray results that “scor[e]” above some level of opacity count as a “diagnosis”? What level, exactly? See American Min. Congress v. Mine Safety and Health Admin., 995 F. 2d 1106, 1107– 1108 (CADC 1993). • An FDA regulation gives pharmaceutical companies exclusive rights to drug products if they contain “no active moiety that has been approved by FDA in any other” new drug application. 21 CFR § 314.108(a) (2010). Has a company created a new “active moiety” by joining a previously approved moiety to lysine through a non-ester covalent bond? See Actavis Elizabeth LLC v. FDA, 625 F. 3d 760, 762–763 (CADC 2010); Tr. of Oral Arg. 12, 35. 1

• Or take the facts of Auer itself. An agency must decide

whether police captains are eligible for overtime under the Fair Labor Standards Act. According to the agency's regulations, employees cannot receive overtime

if they are paid on a “salary basis.” 29 CFR § 541.118(a) (1996). And in deciding whether an employee is salaried, one question is whether his pay is “subject to reduction” based on performance. Ibid. A police department's manual informs its officers that their pay might be docked if they commit a disciplinary infraction. Does that fact alone make them “subject to” pay deductions? Or must the department have a practice of docking off-cer pay, so that the possibility of that happening is more than theoretical? 519 U. S., at 459–462.

In each case, interpreting the regulation involves a choice between (or among) more than one reasonable reading. To apply the rule to some unanticipated or unresolved situation, the court must make a judgment call. How should it do so?

In answering that question, we have often thought that a court should defer to the agency's construction of its own regulation. For the last 20 or so years, we have referred to that doctrine as Auer deference, and applied it often. 2 But the name is something of a misnomer. Before the doctrine was called Auer deference, it was called Seminole Rock deference—for the 1945 decision in which we declared that when “the meaning of [a regulation] is in doubt,” the agency's interpretation “becomes of controlling weight unless it is plainly erroneous or inconsistent with the regulation.” 325 U. S., at 414. 3 And Seminole Rock itself was not built on

We have explained Auer deference (as we now call it) as rooted in a presumption about congressional intent—a presumption that Congress would generally want the agency to play the primary role in resolving regulatory ambiguities. See Martin v. Occupational Safety and Health Review Comm'n, 499 U. S. 144, 151–153 (1991). Congress, we have pointed out, routinely delegates to agencies the power to implement statutes by issuing rules. See id., at 151. In doing so, Congress knows (how could it not?) that regulations will sometimes contain ambiguities. See supra, at 566. But Congress almost never explicitly assigns responsibility to deal with that problem, either to agencies or to courts. Hence the need to presume, one way or the other, what Congress would want. And as between those two choices, agencies have gotten the nod. We have adopted the presumption— though it is always rebuttable—that “the power authoritatively to interpret its own regulations is a component of the

Methow Valley Citizens Council, 490 U. S. 332, 358–359 (1989); Mullins Coal Co. of Va. v. Director, Office of Workers' Compensation Programs, 484 U. S. 135, 159 (1987); Lyng v. Payne , 476 U. S. 926, 939 (1986); Fidelity Fed. Sav. & Loan Assn. v. De la Cuesta, 458 U. S. 141, 158, n. 13 (1982); Blanding v. DuBose , 454 U. S. 393, 401 (1982) (per curiam ); Ford Motor Credit Co. v. Milhollin, 444 U. S. 555, 566 (1980); United States v. Lario-noff, 431 U. S. 864, 872 (1977); Northern Indiana Public Service Co. v. Porter County Chapter of Izaak Walton League of America, Inc., 423 U. S. 12, 15 (1975) (per curiam ); Ehlert v. United States, 402 U. S. 99, 105 (1971); INS v. Stanisic, 395 U. S. 62, 72 (1969); Thorpe v. Housing Authority of Durham, 393 U. S. 268, 276 (1969); Udall v. Tallman, 380 U. S. 1, 16–17 (1965).

In part, that is because the agency that promulgated a rule is in the “better position [to] reconstruct” its original meaning. Id., at 152. Consider that if you don't know what some text (say, a memo or an e-mail) means, you would probably want to ask the person who wrote it. And for the same reasons, we have thought, Congress would too (though the person is here a collective actor). The agency that “wrote the regulation” will often have direct insight into what that rule was intended to mean. Mullins Coal Co. of Va. v. Director, Office of Workers' Compensation Programs, 484 U. S. 135, 159 (1987). The drafters will know what it was supposed to include or exclude or how it was supposed to apply to some problem. To be sure, this justification has its limits. It does not work so well, for example, when the agency flailed to anticipate an issue in crafting a rule (e. g., if the agency never thought about whether and when chest X-rays would count as a “diagnosis”). See supra, at 567. Then, the agency will not be uncovering a specific intention; at most (though this is not nothing), it will be offering insight into the analogous issues the drafters considered and the purposes they designed the regulation to serve. And the defense works yet less well when lots of time has passed between the rule's issuance and its interpretation—especially if the interpretation differs from one that has come before. All that said, the point holds good for a significant category of “contemporaneous” readings. Lyng v. Payne , 476 U. S. 926, 939 (1986). Want to know what a rule means? Ask its author.

In still greater measure, the presumption that Congress intended Auer deference stems from the awareness that resolving genuine regulatory ambiguities often “entail[s] the exercise of judgment grounded in policy concerns.”

And Congress, we have thought, knows just that: It is attuned to the comparative advantages of agencies over courts in making such policy judgments. Agencies (unlike courts) have “unique expertise,” often of a scientific or technical nature, relevant to applying a regulation “to complex or changing circumstances.” Martin, 499 U. S., at 151; see Thomas Jefferson, 512 U. S., at 512. Agencies (unlike courts) can conduct factual investigations, can consult with affected parties, can consider how their experts have handled similar issues over the long course of administering a regulatory program. See Long Island Care at Home, Ltd. v. Coke, 551 U. S. 158, 167–168 (2007). And agencies (again unlike courts) have political accountability, because they are subject to the

Finally, the presumption we use reflects the well-known benefits of uniformity in interpreting genuinely ambiguous rules. We have noted Congress's frequent “preference for resolving interpretive issues by uniform administrative decision, rather than piecemeal through litigation.” Ford Motor Credit Co. v. Milhollin, 444 U. S. 555, 568 (1980). That preference may be strongest when the interpretive issue arises in the context of a “complex and highly technical regulatory program.” Thomas Jefferson, 512 U. S., at 512. After all, judges are most likely to come to divergent conclusions when they are least likely to know what they are doing. (Is there anything to be said for courts all over the country trying to figure out what makes for a new active moiety?) But the uniformity justification retains some weight even for more accessible rules, because their language too may give rise to more than one eminently reasonable reading. Consider Auer itself. See supra, at 567–568. There, four Circuits held that police captains were “subject to” pay deductions for disciplinary infractions if a police manual said they were, even if the department had never docked anyone. Two other Circuits held that captains were “subject to” pay deductions only if the department's actual practice made that punishment a realistic possibility. See Auer , 519 U. S., at 460. Had the agency issued an interpretation before all those rulings

B

But all that said, Auer deference is not the answer to every question of interpreting an agency's rules. Far from it. As we explain in this section, the possibility of deference can arise only if a regulation is genuinely ambiguous. And when we use that term, we mean it—genuinely ambiguous, even after a court has resorted to all the standard tools of interpretation. Still more, not all reasonable agency constructions of those truly ambiguous rules are entitled to deference. As just explained, we presume that Congress intended for courts to defer to agencies when they interpret their own ambiguous rules. See supra, at 566–573. But when the reasons for that presumption do not apply, or countervailing reasons outweigh them, courts should not give deference to an agency's reading, except to the extent it has the “power to persuade.” Christopher, 567 U. S., at 159 (quoting Skidmore v. Swift & Co., 323 U. S. 134, 140 (1944)). We have thus cautioned that Auer deference is just a “general rule”; it “does not apply in all cases.” Christopher, 567 U. S., at 155. And although the limits of Auer deference are not susceptible to any rigid test, we have noted various circumstances in which such deference is “unwarranted.” Ibid. In particular, that will be so when a court concludes that an interpretation does not refect an agency's authoritative, expertise-based, “fair[, or] considered judgment.” Ibid. (quoting Auer , 519 U. S., at 462); cf. United States v.

We take the opportunity to restate, and somewhat expand on, those principles here to clear up some mixed messages we have sent. At times, this Court has applied Auer deference without significant analysis of the underlying regulation. See, e. g., United States v. Larionoff, 431 U. S. 864, 872 (1977) (stating that the Court “need not tarry” over the regulation's language given Seminole Rock ). At other times, the Court has given Auer deference without careful attention to the nature and context of the interpretation. See, e. g., Thorpe v. Housing Authority of Durham, 393 U. S. 268, 276, and nn. 22–23 (1969) (deferring to an agency's view as expressed in letters to third parties). And in a vacuum, our most classic formulation of the test—whether an agency's construction is “plainly erroneous or inconsistent with the regulation,” Seminole Rock, 325 U. S., at 414—may suggest a caricature of the doctrine, in which deference is “reflexive.” Pereira v. Sessions, 585 U. S. 198, 221 (2018) (Kennedy, J., concurring). So we cannot deny that Kisor has a bit of grist for his claim that Auer “bestows on agencies expansive, unreviewable” authority. Brief for Petitioner 25. But in fact Auer does no such thing: It gives agencies their due, while also allowing—indeed, obligating—courts to perform their reviewing and restraining functions. So before we turn to Kisor's specific grievances, we think it worth rein-forcing some of the limits inherent in the Auer doctrine.4

First and foremost, a court should not afford Auer deference unless the regulation is genuinely ambiguous. See Christensen v. Harris County, 529 U. S. 576, 588 (2000); Seminole Rock, 325 U. S., at 414 (deferring only “if the meaning of the words used is in doubt”). If uncertainty does not

And before concluding that a rule is genuinely ambiguous, a court must exhaust all the “traditional tools” of construction. Chevron U. S. A. Inc. v. Natural Resources Defense Council, Inc., 467 U. S. 837, 843, n. 9 (1984) (adopting the same approach for ambiguous statutes). For again, only when that legal toolkit is empty and the interpretive question still has no single right answer can a judge conclude that it is “more [one] of policy than of law.” Pauley, 501 U. S., at 696. That means a court cannot wave the ambiguity fag just because it found the regulation impenetrable on first read. Agency regulations can sometimes make the eyes glaze over. But hard interpretive conundrums, even relat-ing to complex rules, can often be solved. See id., at 707 (Scalia, J., dissenting) (A regulation is not ambiguous merely because “discerning the only possible interpretation requires a taxing inquiry”). To make that effort, a court must “carefully consider[ ]” the text, structure, history, and purpose of a regulation, in all the ways it would if it had no agency to fall back on. Ibid. Doing so will resolve many seeming ambiguities out of the box, without resort to Auer deference.

If genuine ambiguity remains, moreover, the agency's reading must still be “reasonable.” Thomas Jefferson, 512

Still, we are not done—for not every reasonable agency reading of a genuinely ambiguous rule should receive Auer deference. We have recognized in applying Auer that a court must make an independent inquiry into whether the character and context of the agency interpretation entitles it to controlling weight. See Christopher, 567 U. S., at 155; see also Mead, 533 U. S., at 229–231, 236–237 (requiring an analogous though not identical inquiry for Chevron deference). As explained above, we give Auer deference because we presume, for a set of reasons relating to the comparative attributes of courts and agencies, that Congress would have wanted us to. See supra, at 569–573. But the administrative realm is vast and varied, and we have understood that such a presumption cannot always hold. Cf. Mead, 533 U. S., at 236 (“tailor[ing] deference to [the] variety” of administrative action); Arling-ton , 569 U. S., at 309–310 ( Breyer, J. , concurring in part and concurring in judgment) (noting that “context-specific[ ] factors” may show that “Congress would [not] have intended the agency to resolve [some] ambiguity”). The inquiry on this dimension does not reduce to any exhaustive test. But we have laid out some especially important mark-

To begin with, the regulatory interpretation must be one actually made by the agency. In other words, it must be the agency's “authoritative” or “official position,” rather than any more ad hoc statement not reflecting the agency's views. Mead, 533 U. S., at 257–259, and n. 6 (Scalia, J., dissenting). That constraint follows from the logic of Auer deference— because Congress has delegated rulemaking power, and all that typically goes with it, to the agency alone. Of course, the requirement of “authoritative” action must recognize a reality of bureaucratic life: Not everything the agency does comes from, or is even in the name of, the Secretary or his chief advisers. So, for example, we have deferred to “official staff memoranda” that were “published in the Federal Register,” even though never approved by the agency head. Ford Motor Credit, 444 U. S., at 566, n. 9, 567, n. 10 (declining to “draw a radical distinction between” agency heads and staff for Auer deference). But there are limits. The interpretation must at the least emanate from those actors, using those vehicles, understood to make authoritative policy in the relevant context. See, e. g., Paralyzed Veterans, 117 F. 3d, at 587 (refusing to consider a “speech of a mid-level official” as an “authoritative departmental position”); N. Y . State Dept. of Social Servs. v. Bowen, 835 F. 2d 360, 365–366 (CADC 1987) (rejecting the idea that an “informal memorandum” recounting a telephone conversation between employees could count as an “authoritative pronouncement”); Exelon Generation Co. v. Local 15, Int'l Brotherhood of Elec. Workers, AFL–CIO , 676 F. 3d 566, 576–578 (CA7 2012) (declining deference when the agency had itself “disclaimed the use of regulatory guides as authoritative”). If the interpretation does not do so, a court may not defer.

Next, the agency's interpretation must in some way implicate its substantive expertise. Administrative knowledge and experience largely “account [for] the presumption that Congress delegates interpretive lawmaking power to the

cial authority to interpret its own words when, instead of using its exper-tise and experience to formulate a regulation, it has elected merely to paraphrase the statutory language.” 6 The general rule, then, is not to give deference to agency interpreta- Ibid. tions advanced for the first time in legal briefs. See Bowen, 488 U. S., at 212–213. But we have not entirely foreclosed that practice. Auer itself deferred to a new regulatory interpretation presented in an amicus cu-riae brief in this Court. There, the agency was not a party to the litigation, and had expressed its views only in response to the Court's request. “[I]n the circumstances,” the Court explained, “[t]here [was] simply no reason to suspect that the interpretation [did] not refect the agency's fair and considered judgment on the matter in question.” Auer , 519 U. S., at 462.

* * *

The upshot of all this goes something as follows. When it applies, Auer deference gives an agency significant leeway to say what its own rules mean. In so doing, the doctrine enables the agency to fill out the regulatory scheme Congress has placed under its supervision. But that phrase “when it applies” is important—because it often doesn't. As described above, this Court has cabined Auer 's scope in varied and critical ways—and in exactly that measure, has maintained a strong judicial role in interpreting rules. What emerges is a deference doctrine not quite so tame as some might hope, but not nearly so menacing as they might fear.

That brings us to the lone question presented here— whether we should abandon the longstanding doctrine just described. In contending that we should, Kisor raises statutory, policy, and constitutional claims (in that order). But he faces an uphill climb. He must first convince us that Auer deference is wrong. And even then, he must overcome stare decisis—the special care we take to preserve our precedents. In the event, Kisor flails at the first step: None of his arguments provide good reason to doubt Auer deference. And even if that were not so, Kisor does not offer the kind of special justification needed to overrule Auer, and Seminole Rock, and all our many other decisions deferring to reasonable agency constructions of ambiguous rules.

Kisor first attacks Auer as inconsistent with the judicial review provision of the Administrative Procedure Act (APA). See 5 U. S. C. § 706. As Kisor notes, Congress enacted the APA in 1946—the year after Seminole Rock—to serve as “the fundamental charter of the administrative state.” Brief for Petitioner 26 (internal quotation marks omitted). Section 706 of the Act, governing judicial review of agency

To begin with, that argument ignores the many ways, discussed above, that courts exercise independent review over the meaning of agency rules. See supra, at 574–579. As we have explained, a court must apply all traditional methods of interpretation to any rule, and must enforce the plain meaning those methods uncover. There can be no thought of deference unless, after performing that thoroughgoing review, the regulation remains genuinely susceptible to multiple reasonable meanings and the agency's interpretation lines up with one of them. And even if that is the case, courts must on their own determine whether the nature or context of the agency's construction reverses the usual presumption of deference. Most notably, a court must consider whether the interpretation is authoritative, expertise-based, considered, and fair to regulated parties. All of that figures as “meaningful judicial review.” Brief for Petitioner 29.

And even when a court defers to a regulatory reading, it acts consistently with Section 706. That provision does not specify the standard of review a court should use in “de-termin[ing] the meaning” of an ambiguous rule. 5 U. S. C. § 706. One possibility, as Kisor says, is to review the issue de novo. But another is to review the agency's reading for reasonableness. To see the point, assume that a regulatory (say, an employment) statute expressly instructed courts to apply Auer deference when reviewing an agency's interpretations of its ambiguous rules. Nothing in that statute would conflict with Section 706. Instead, the em-

That is especially so given the practice of judicial review at the time of the APA's enactment. Section 706 was understood when enacted to “restate[ ] the present law as to the scope of judicial review.” See Dept. of Justice, Attorney General's Manual on the Administrative Procedure Act 108 (1947); see also Vermont Yankee Nuclear Power Corp. v. Natural Resources Defense Council, Inc., 435 U. S. 519, 546 (1978) (noting that this Court gives some deference to the Manual “because of the role played by the Department of Justice in drafting the legislation”). We have thus interpreted the APA not to “significantly alter the common law of judicial review of agency action.” Heckler v. Chaney , 470 U. S. 821, 832 (1985) (internal quotation marks omitted).

Kisor next claims that Auer circumvents the APA's rule-making requirements. Section 553, as Kisor notes, mandates that an agency use notice-and-comment procedures before issuing legislative rules. See 5 U. S. C. §§ 553(b), (c). But the section allows agencies to issue “interpret[ive]” rules without notice and comment. See § 553(b)(A). A key feature of those rules is that (unlike legislative rules) they are not supposed to “have the force and effect of law”—or, otherwise said, to bind private parties. Perez v. Mortgage Bankers Assn., 575 U. S. 92, 97 (2015) (internal quotation marks omitted). Instead, interpretive rules are meant only to “advise the public” of how the agency understands, and is likely to apply, its binding statutes and legislative rules. Ibid. But consider, Kisor argues, what happens when a court gives Auer deference to an interpretive rule. The result, he asserts, is to make a rule that has never gone through notice and comment binding on the public. See Brief for Petitioner 21, 29. Or put another way, the interpretive rule ends up having the “force and effect of law” without ever paying the procedural cost. Mortgage Bankers, 575 U. S., at 97.

And indeed, a court deciding whether to give Auer deference must heed the same procedural values as Section 553 reflects. Remember that a court may defer to only an agency's authoritative and considered judgments. See supra, at 576–579. No ad hoc statements or post hoc rationalizations need apply. And recall too that deference turns on whether an agency's interpretation creates unfair surprise or upsets reliance interests. See supra, at 579. So an agency has a strong incentive to circulate its interpretations early and widely. In such ways, the doctrine of Auer deference reinforces, rather than undermines, the ideas of fairness and informed decisionmaking at the core of the APA.

But the claim has notable weaknesses, empirical and theoretical alike. First, it does not survive an encounter with experience. No real evidence—indeed, scarcely an anecdote—backs up the assertion. As two noted scholars (one of whom reviewed thousands of rules during four years of government service) have written: “[W]e are unaware of, and no one has pointed to, any regulation in American history that, because of Auer , was designed vaguely.” Sunstein & Vermeule, 84 U. Chi. L. Rev., at 308. And even the argument's theoretical allure dissipates upon refection. For strong (almost surely stronger) incentives and pressures cut in the opposite direction. “[R]egulators want their regulations to be effective, and clarity promotes compliance.” Brief for Administrative Law Scholars as Amici Curiae 18– 19. Too, regulated parties often push for precision from an agency, so that they know what they can and cannot do. And ambiguities in rules pose risks to the long-run survival of agency policy. Vagueness increases the chance of adverse

Finally, Kisor goes big, asserting (though fleetingly) that Auer deference violates “separation-of-powers principles.” See Brief for Petitioner 43. In his view, those principles prohibit “vest[ing] in a single branch the law-making and law-interpreting functions.” Id., at 45. If that objection is to agencies' usurping the interpretive role of courts, this opinion has already met it head-on. Properly understood and applied, Auer does no such thing. In all the ways we have described, courts retain a firm grip on the interpretive function. See supra, at 574–579; Mortgage Bankers, 575 U. S., at 104, n. 4. If Kisor's objection is instead to the supposed commingling of functions (that is, the legislative and judicial) within an agency, this Court has answered it often before. See, e. g., Withrow v. Larkin, 421 U. S. 35, 54 (1975) (permitting such a combination of functions); FTC v. Cement Institute , 333 U. S. 683, 702 (1948) (same). That sort of mixing is endemic in agencies, and has been “since the beginning of the Republic.” Arlington, 569 U. S., at 304–305, n. 4. It does not violate the separation of powers, we have explained, because even when agency “activities take `legislative' and `judicial' forms,” they continue to be “exercises of[ ] the `executive Power' ”—or otherwise said, ways of executing a statutory plan. Ibid. (quoting U. S. Const., Art. II, § 1, cl. 1). So Kisor's last argument to dispatch Auer deference flails as roundly as the rest.

If all that were not enough, stare decisis cuts strongly against Kisor's position. “Overruling precedent is never a small matter.” Kimble v. Marvel Entertainment, LLC , 576 U. S. 446, 455 (2015). Adherence to precedent is “a foundation stone of the rule of law.” Michigan v. Bay Mills Indian Community , 572 U. S. 782, 798 (2014). “[I]t promotes

And that is even more than usually so in the circumstances here. First, Kisor asks us to overrule not a single case, but a “long line of precedents”—each one reaffirming the rest and going back 75 years or more. Bay Mills, 572 U. S., at 798; see nn. 2, 3, supra. This Court alone has applied Auer or Seminole Rock in dozens of cases, and lower courts have done so thousands of times. Deference to reasonable agency interpretations of ambiguous rules pervades the whole corpus of administrative law. Second, because that is so, abandoning Auer deference would cast doubt on many settled constructions of rules. As Kisor acknowledged at oral argument, a decision in his favor would allow relitigation of any decision based on Auer , forcing courts to “wrestle [with] whether or not Auer ” had actually made a difference. Tr. of Oral Arg. 30; see id., at 47 (Solicitor General agreeing that “every single regulation that's currently on the books whose interpretation has been established under Seminole Rock now [would have] to be relitigated anew”). It is the rare overruling that introduces so much instability into so many areas of law, all in one blow.

And third, even if we are wrong about Auer , “Congress remains free to alter what we have done.” Patterson v. McLean Credit Union, 491 U. S. 164, 172–173 (1989) (stating that when that is so, “[c]onsiderations of stare decisis have special force”). In a constitutional case, only we can correct our error. But that is not so here. Our deference decisions are “balls tossed into Congress's court, for acceptance or not

Kisor offers nothing of that ilk. Nearly all his arguments about abandoning precedent are variants of his merits claims. We hear again, if in different parts of his briefs, that Auer deference frustrates “the policies embodied in the APA” and violates the separation of powers. Reply Brief 13, and n. 5; Brief for Petitioner 47–48. More generally, we learn that Seminole Rock was “wrong on its own terms” and “badly reasoned.” Id., at 47 (internal quotation marks omitted). Of course, it is good—and important—for our opinions to be right and well-reasoned. But that is not the test for overturning precedent. Kisor does not claim that Auer deference is “unworkable,” a traditional basis for overruling a case. Patterson, 491 U. S., at 173. Nor does he point to changes in legal rules that make Auer a “doctrinal dinosaur.” Kimble , 576 U. S., at 458. All he can muster is that “[t]he administrative state has evolved substantially since 1945.” Brief for Petitioner 53. We do not doubt the point (although we note that Auer and other key deference decisions came along after most of that evolution took place). Still more,

With that, we can finally return to Kisor's own case. You may remember that his retroactive benefits depend on the meaning of the term “relevant” records in a V A regulation. See supra, at 564–565. The Board of Veterans' Appeals, through a single judge's opinion, understood records to be relevant only if they relate to the basis of the V A's initial denial of benefits. By contrast, Kisor argued that records are relevant if they go to any benefits criterion, even one that was uncontested. The Federal Circuit upheld the Board's interpretation based on Auer deference.

Applying the principles outlined in this opinion, we hold that a redo is necessary for two reasons. First, the Federal Circuit jumped the gun in declaring the regulation ambiguous. We have insisted that a court bring all its interpretive tools to bear before finding that to be so. See supra, at 574– 575. It is not enough to casually remark, as the court did here, that “[b]oth parties insist that the plain regulatory language supports their case, and neither party's position strikes us as unreasonable.” 869 F. 3d, at 1368; see supra, at 574–575. Rather, the court must make a conscientious effort to determine, based on indicia like text, structure, history, and purpose, whether the regulation really has more

And second, the Federal Circuit assumed too fast that Auer deference should apply in the event of genuine ambiguity. As we have explained, that is not always true. A court must assess whether the interpretation is of the sort that Congress would want to receive deference. See supra, at 576–579. The Solicitor General suggested at oral argument that the answer in this case might be no. He explained that all 100 or so members of the V A Board act individually (rather than in panels) and that their roughly 80,000 annual decisions have no “precedential value.” Tr. of Oral Arg. 64. He thus questioned whether a Board member's ruling “reflects the considered judgment of the agency as a whole.” Ibid.; cf. Mead, 533 U. S., at 233 (declining to give Chevron deference to rulings “being churned out at a rate of 10,000 a year at an agency's 46 scattered offices”). We do not know what position the Government will take on that issue below. But the questions the Solicitor General raised are exactly the kind the court must consider in deciding whether to award Auer deference to the Board's interpretation.

We accordingly vacate the judgment below and remand the case for further proceedings.

It is so ordered.

Chief Justice Roberts, concurring in part.

I join Parts I, II–B, III–B, and IV of the Court's opinion. We took this case to consider whether to overrule Auer v. Robbins, 519 U. S. 452 (1997), and Bowles v. Seminole Rock & Sand Co., 325 U. S. 410 (1945). For the reasons the Court discusses in Part III–B, I agree that overruling those

I write separately to suggest that the distance between the majority and Justice Gorsuch is not as great as it may initially appear. The majority catalogs the prerequisites for, and limitations on, Auer deference: The underlying regulation must be genuinely ambiguous; the agency's interpretation must be reasonable and must refect its authoritative, expertise-based, and fair and considered judgment; and the agency must take account of reliance interests and avoid unfair surprise. Justice Gorsuch, meanwhile, lists the reasons that a court might be persuaded to adopt an agency's interpretation of its own regulation: The agency thoroughly considered the problem, offered a valid rationale, brought its expertise to bear, and interpreted the regulation in a manner consistent with earlier and later pronouncements. Accounting for variations in verbal formulation, those lists have much in common.

That is not to say that Auer deference is just the same as the power of persuasion discussed in Skidmore v. Swift & Co., 323 U. S. 134 (1944); there is a difference between holding that a court ought to be persuaded by an agency's interpretation and holding that it should defer to that interpretation under certain conditions. But it is to say that the cases in which Auer deference is warranted largely overlap with the cases in which it would be unreasonable for a court not to be persuaded by an agency's interpretation of its own regulation.

One further point: Issues surrounding judicial deference to agency interpretations of their own regulations are distinct from those raised in connection with judicial deference to agency interpretations of statutes enacted by Congress. See Chevron U. S. A. Inc. v. Natural Resources Defense Council, Inc., 467 U. S. 837 (1984). I do not regard the Court's decision today to touch upon the latter question.

It should have been easy for the Court to say goodbye to Auer v. Robbins.1 In disputes involving the relationship between the government and the people, Auer requires judges to accept an executive agency's interpretation of its own regulations even when that interpretation doesn't represent the best and fairest reading. This rule creates a “systematic judicial bias in favor of the federal government, the most powerful of parties, and against everyone else.” 2 Nor is Auer 's biased rule the product of some congressional mandate we are powerless to correct: This Court invented it, almost by accident and without any meaningful effort to reconcile it with the Administrative Procedure Act or the Constitution. A legion of academics, lower court judges, and Members of this Court—even Auer 's author—has called on us to abandon Auer . Yet today a bare majority flinches, and Auer lives on.

Still, today's decision is more a stay of execution than a pardon. The Court cannot muster even five votes to say that Auer is lawful or wise. Instead, a majority retains Auer only because of stare decisis. And yet, far from standing by that precedent, the majority proceeds to impose so many new and nebulous qualifications and limitations on Auer that The Chief Justice claims to see little practical difference between keeping it on life support in this way and overruling it entirely. So the doctrine emerges maimed and enfeebled—in truth, zombifed.

Respectfully, we owe our colleagues on the lower courts more candid and useful guidance than this. And judges owe the people who come before them nothing less than a fair

1 519 U. S. 452 (1997).

Consider this case. Mr. Kisor is a Marine who lost out on benefits for post-traumatic stress disorder when the court of appeals deferred to a regulatory interpretation advanced by the Department of Veterans Affairs. The court of appeals was guilty of nothing more than faithfully following Auer . But the majority today invokes stare decisis, of all things, to vacate that judgment and tell the court of appeals to try again using its newly retooled, multi-factored, and far less determinate version of Auer . Respectfully, I would stop this business of making up excuses for judges to abdicate their job of interpreting the law, and simply allow the court of appeals to afford Mr. Kisor its best independent judgment of the law's meaning.

The Court's failure to be done with Auer , and its decision to adorn Auer with so many new and ambiguous limitations, all but guarantees we will have to pass this way again. When that day comes, I hope this Court will find the nerve it lacks today and inter Auer at last. Until then, I hope that our judicial colleagues on other courts will take courage from today's ruling and realize that it has transformed Auer into a paper tiger.

I. How We Got Here

Where did Auer come from? Not from the Constitution, some ancient common law tradition, or even a modern statute. Instead, it began as an unexplained aside in a decision

Before the mid-20th century, few federal agencies engaged in extensive rulemaking, and those that did rarely sought deference for their regulatory interpretations. 3 But when the question arose, this Court did not hesitate to say that judges reviewing administrative action should decide all questions of law, including questions concerning the meaning of regulations. As Justice Brandeis put it, “[t]he inexorable safeguard which the due process clause assures is . . . that there will be opportunity for a court to determine whether the applicable rules of law . . . were observed.” 4 Unsurprisingly, the government's early, longstanding, and consistent interpretation of a statute, regulation, or other legal instrument could count as powerful evidence of its original public meaning.5 But courts respected executive interpretations only because and to the extent “they embodied understandings made roughly contemporaneously with . . . enactment

Writing for four Members of the Court, Justice Kagan suggests that Auer 's very different approach to the interpretation of agency regulations was foreshadowed as early as this Court's 1898 decision in United States v. Eaton.7 Ante , at 569. But this is mistaken. The question in that case was whether Mr. Eaton's appointment as temporary vice-consul to Siam was consistent with State Department regulations. After several pages of careful and independent legal analysis, the Court held that the regulations did authorize the appointment. That conclusion, the Court explained, was “rendered necessary by a consideration of the text.” 8 Only after reaching this conclusion did the Court observe that the State Department had previously adopted the same construction, noting along the way that the Department's views were “entitled to the greatest weight” and that the Court saw “no reason in this case to doubt [their] correctness.” 9 Eaton thus simply followed the well-worn path of acknowl-edging that an agency's interpretation of a regulation can supply evidence of its meaning.10 Nowhere did the Court even hint that it would have deferred to the State Depart-

All this is borne out by the Court's later teachings in Skidmore v. Swift & Co. in 1944. 11 The question there was whether the time overnight employees spent waiting to respond to fire alarms could amount to compensable overtime under the Fair Labor Standards Act. The lower courts had held as a matter of law that it could not. In an opinion by Justice Jackson, this Court reversed. The Court first held, based on its own independent analysis, that “no principle of law found either in the statute or in Court decisions precludes waiting time from also being working time.” 12 Only then did the Court consider “what, if any, deference courts should pay” to the views of the Administrator of the Labor Department's Wage and Hour Division.13 And on that question the Court reaffirmed the traditional rule that an agency's interpretation of the law is “not controlling upon the courts” and is entitled only to a weight proportional to “the thoroughness evident in its consideration, the validity of its reasoning, its consistency with earlier and later pronouncements, and all those factors which give it power to persuade.” 14 At the time, the influential administrative law scholar Kenneth Culp Davis considered this “[a]n entirely reliable statement” of the law. 15

11 323 U. S. 134.

In truth, the seeds of the Auer doctrine were first planted

16 That

only in 1945, in Bowles v. Seminole Rock & Sand Co. case involved regulations issued by the Office of Price Administration (OPA), which Congress had tasked with stabiliz-ing the national economy during the Second World War through the use of emergency price controls. It was in that context that the Court declared—for the first time and without citing any authority—that “if the meaning of [the regulation were] in doubt,” the agency's interpretation would merit “controlling weight unless it is plainly erroneous or inconsistent with the regulation.” 17

Yet even then it was far from clear how much weight the Court really placed on the agency's interpretation. As it had in Eaton, the Court in Seminole Rock began with an extended discussion of “the plain words of the regulation,” which led it to conclude that the text “clearly” supported the government's position.18 Only after reaching that conclusion based on its own independent analysis did the Court proceed to add that “[a]ny doubts . . . are removed by reference to the administrative construction.” 19

So confused was all this that readers at the time didn't perceive Seminole Rock 's dictum as changing anything. Professor Davis observed that the Court's discussion about giving “controlling weight” to the agency's interpretation was an unexplained aside that made no difference to the case's outcome.20 The dictum, too, was readily explained as reflecting the unusual factual context in which the case

ment on the content of interpretative rules is always permissible, even though the reviewing court may give `weight' or `great weight' to the rule. The best guide may be the Court's formula in 16 325 U. S. 410. Skidmore . . . ”).

No wonder, then, that for many years after the decision, courts “connected Seminole Rock more closely with the deference framework . . . under Skidmore” and generally engaged in a Skidmore-type analysis, accepting the agency's interpretation “only after independently examining the regulation and concluding that the agency interpretation was sound.” 23 If Seminole Rock 's “controlling weight” dictum was afforded any force, it was usually only in the price control context; even then it was ordinarily extended only to “official” agency interpretations that were published contemporaneously with the regulation and widely distributed.24 The Fourth Circuit exemplified the early understanding of Seminole Rock when it observed—citing both Seminole Rock and Skidmore —that “under settled principles” an official agency interpretation in an opinion letter was entitled only to “respectful consideration.” 25 The letter, the court stressed,

C

This Court did not cite Seminole Rock 's “controlling weight” dictum again until 1965, in Udall v. Tallman.27 And though Tallman “did very little to advance the jurisprudential understanding of Seminole Rock,” it certainly helped fuel the expansion of so-called “Seminole Rock deference.” 28 From the 1960s on, this Court and lower courts began to cite the Seminole Rock dictum with increasing frequency and in a wider variety of circumstances, but still without much explanation. They also increasingly divorced Seminole Rock from Skidmore .29

Auer represents the apotheosis of this line of cases. In the name of what some now call the Auer doctrine, courts have in recent years “mechanically applied and reflexively treated” Seminole Rock 's dictum “as a constraint upon the careful inquiry that one might ordinarily expect of courts engaged in textual analysis.” 30 Under Auer , judges are forced to subordinate their own views about what the law means to those of a political actor, one who may even be a party to the litigation before the court. After all, if the court agrees that the agency's reading is the best one, Auer does no real work; the doctrine matters only when a court would conclude that the agency's interpretation is not the best or fairest reading of the regulation.

26 27 380 U. S. 1, 4, 17–18 (accepting a regulatory interpretation by the Ibid. Secretary of the Interior that was consistent, widely disseminated, and heavily relied upon, while not suggesting any disagreement with the Secretary's interpretation). 28 Lost History 80.

If that were not troubling enough, Auer has also become “a doctrine of uncertain scope and application.” 33 This Court has never offered meaningful guidance on how to decide whether the agency's reading is “reasonable” enough to demand judicial deference—and lower courts have drawn that line in wildly different places.34 Deepening the confusion, this Court and lower courts have, over time, tried to soften Auer 's rigidity by declaring that it “might” not apply

In light of Auer 's many problems, it should come as no surprise that several Members of this Court, 37 along with a great many lower court judges 38 and members of the legal

35 Christopher v. SmithKline Beecham Corp., 567 U. S. 142, 155 (2012) (alterations and internal quotation marks omitted).

D

That's where things stood when James Kisor asked the Department of Veterans Affairs to reopen his disability ben-efts claim. Mr. Kisor served as a United States Marine from 1962 through 1966 and saw combat in Vietnam. In the early 1980s, a V A counselor observed that Mr. Kisor was bat-tling depression and suicidal thoughts and suggested he might be suffering from post-traumatic stress disorder. In light of this, Mr. Kisor filed a claim for disability benefits in 1982. But, in the end, the V A denied the claim.

In 2006, Mr. Kisor sought to reopen the matter. In connection with that request, he presented new evidence, in-cluding a psychiatrist's report diagnosing him with PTSD and additional records documenting his service in Vietnam. The V A reopened Mr. Kisor's claim and granted him disability benefits effective June 5, 2006, the date he had submitted his new request. Mr. Kisor argued that a V A regulation entitled him to an earlier effective date for disability bene-fits, one tracing back to his original submission in 1982. But the Board of Veterans Appeals concluded that the applicable regulation didn't authorize that relief.

Mr. Kisor appealed the Board's ruling all the way to the Federal Circuit, arguing that the Board had misinterpreted the relevant regulation. The Federal Circuit affirmed. Relying on the Auer doctrine, the court held that it had no

Mr. Kisor sought and was denied rehearing en banc. Three judges dissented and joined those who have questioned “the logic behind continued adherence to the [ Auer] doctrine”; they argued that, without Auer deference, Mr. Kisor's reading of the regulation would likely prevail.42 Mr. Kisor then asked us to grant certiorari to reconsider Auer . Thinking it past time to do so, we granted the petition.43

When this Court speaks about the rules governing judicial review of federal agency action, we are not (or shouldn't be) writing on a blank slate or exercising some common-lawmaking power. We are supposed to be applying the Administrative Procedure Act. The APA is a “seminal” statute that Congress wrote to define the relationship between courts and agencies.44 Some have even described it as a kind of constitution for our “administrative state.” Yet, remarkably, until today this Court has never made any serious effort to square the Auer doctrine with the APA. Even now, only four Justices make the attempt. And for at least two reasons, their arguments are wholly unpersuasive.

The first problem lies in § 706. That provision instructs reviewing courts to “decide all relevant questions of law” and “set aside agency action . . . found to be . . . not in accordance with law.” 45 Determining the meaning of a statute or regulation, of course, presents a classic legal question. But in case these directives were not clear enough, the APA further directs courts to “determine the meaning” of any relevant “agency action,” including any rule issued by the agency.46 The APA thus requires a reviewing court to resolve for itself any dispute over the proper interpretation of an agency regulation. A court that, in deference to an agency, adopts something other than the best reading of a regulation isn't “decid[ing]” the relevant “questio[n] of law” or “determin- [ing] the meaning” of the regulation. Instead, it's allowing the agency to dictate the answer to that question. In doing so, the court is abdicating the duty Congress assigned to it in the APA.47

Justice Kagan seeks to address the glaring inconsistency between our judge-made rule and the controlling statute this way. On her account, the APA tells a reviewing court to “determine the meaning” of regulations, but it does not tell the court “how” to do that. Thus, we are told, reading the regulation for itself and deferring to the agency's reading are just two equally valid ways for a court to fulfill its statutory duty to “determine the meaning” of the regulation. Ante , at 581–582.

But the APA isn't as anemic as that. Its unqualified command requires the court to determine legal questions— including questions about a regulation's meaning—by its own

45 5 U. S. C. § 706. 46 47 The case before us doesn't arise under the APA, but the statute that Ibid.; see § 551(13) (defining “agency action”). governs here is plainly modeled on the APA and contains essentially the same commands. It directs a reviewing court to “decide all relevant questions of law” and to “set aside any regulation or any interpretation thereof ” that is “not in accordance with law.” 38 U. S. C. § 7292(d)(1).

To test the point further, consider a statute that tells a court to “determin[e]” an appropriate sentence in a criminal case.52 If the judge said he was sending a defendant to prison for longer than he believed appropriate only in deference to the government's “reasonable” sentencing recommendation, would anyone really think that complied with the law? Or take a statute that instructs a court to “determine” whether a consent judgment proposed by the government in a civil antitrust case “is in the public interest.” 53 If a court thought the proposed judgment harmful to the public but decided to defer to the government's “reasonable” contrary

50 545 U. S. 967 (2005).

Nor does Justice Kagan's reading of § 706 offer any logical stopping point. If courts can “determine the meaning” of a regulation by deferring to any “reasonable” agency reading, then why not by deferring to any agency reading? If it were really true that the APA has nothing to say about how courts decide what regulations mean, then it would follow that the APA tolerates a rule that “the agency is always right.” And if you find yourself in a place as absurd as that, you might want to consider whether you've taken a wrong turn along the way.

The problems don't end there. Auer is also incompatible with the APA's instructions in § 553. That provision requires agencies to follow notice-and-comment procedures when issuing or amending legally binding regulations (what the APA calls “substantive rules”), but not when offering mere interpretations of those regulations.54 An agency wishing to adopt or amend a binding regulation thus must publish a proposal in the Federal Register, give interested members of the public an opportunity to submit written comments on the proposal, and consider those comments before issuing the final regulation. Under the APA, that regulation then carries the force of law unless and until it is amended or repealed.55 By contrast, an agency can announce an interpretation of an existing substantive regulation without advance warning and in pretty much whatever form it chooses.

Auer effectively nullifies the distinction Congress drew here. Under Auer , courts must treat as “controlling” not only an agency's duly promulgated rules but also its mere interpretations—even ones that appear only in a legal brief,

Think of it this way. We've held that the Constitution's specification of a “single, finely wrought” procedure for the enactment of statutes (bicameralism and presentment) necessarily implies that Congress cannot amend an enacted statute without following that procedure—say, by allowing a single House to change what the law requires. 58 By the same logic, Congress's specification in the APA of procedures for the creation of new substantive rules (like notice and comment) necessarily implies that an agency cannot amend a substantive rule without following those procedures. To hold otherwise, as Auer demands, subverts the APA's design.

Certain amici contend this argument is “out of place” in this particular case because the V A happened to issue the interpretation challenged here in an adjudicative proceeding.59 But the premise on which they proceed—that the APA permits agencies to issue “controlling” amendments to their regulations in adjudicative proceedings—is not correct. Once an agency issues a substantive rule through notice and comment, it can amend that rule only by following the same notice-and-comment procedures.60 Whether an agency is-

If that won't work, Justice Kagan tries an alternative argument from nearly the opposite direction. She replies that affording Auer deference to an agency's interpretation of its own rules never offends the APA because the agency's interpretation lacks “the force of law” associated with substantive rules. Agency interpretations lack this force, we are told, because a court always retains the power to decide at least whether the interpretation is entitled to deference. Ante , at 583–584. But this argument rests on an implausibly narrow understanding of what it means for an agency action to bear the force of law. Under Justice Kagan's logic, even a binding substantive rule would lack the force of law because a court retains the power to decide whether the rule is arbitrary and capricious and thus invalid under the APA. But no one believes that. While an agency interpretation, just like a substantive rule, “must meet certain conditions before it gets deference,” “once it does so [ Auer makes it] every bit as binding as a substantive rule.” 61 To suggest that Auer does not make an agency's interpretive guidance “binding o[n] anyone,” ante, at 584, is linguistic hocus-pocus.

If Auer cannot be squared with the text of the APA, Justice Kagan suggests it at least conforms to a reasonable “presumption about congressional intent.” Ante , at 569. The theory seems to be that whenever Congress grants an agency “rulemaking power,” it also implicitly gives the agency “ `the power authoritatively to interpret' ” whatever rules the agency chooses to adopt. Ante , at 569–570. But against

Even on its own terms, too, this argument proves pretty muddy. It goes something like this: The drafters of the APA did not intend to “ `significantly alter' ” established law governing judicial review of agency action as of 1946; the Auer doctrine was part of that established law; therefore, the APA implicitly requires courts to afford agencies Auer deference. Ante , at 582–583. But neither of this syllogism's essential premises stands on solid ground.

Take the major premise—that those who adopted the APA intended to work no change in the established law of judicial review of agency action. Justice Kagan is right, of course, that Attorney General Clark claimed as much shortly after the APA's passage. Ante , at 582. But his view, which reflected the interests of the executive branch, was far from universally shared. Others, including many members of Congress, thought the APA would clarify, if not expand, the scope of judicial review. For example, Senator McCarran, the Chairman of the Judiciary Committee, wrote that it would be “hard . . . for anyone to argue that this Act did anything other than cut down the `cult of discretion' so far as federal law is concerned.” 63 And both the House and Senate reports on the APA said it was intended to “provid[e] that questions of law are for courts rather than agencies to decide in the last analysis.” 64

62 63 McCarran, Improving “Administrative Justice”: Hearings and Evi- Milner v. Department of Navy , 562 U. S. 562, 572 (2011). dence; Scope of Judicial Review, 32 A. B. A. J. 827, 893 (1946). 64 H. R. Rep. No. 1980, 79th Cong., 2d Sess., 44 (1946); accord, S. Rep. No. 752, 79th Cong., 1st Sess., 28 (1945); 92 Cong. Rec. 5654 (1946) (statement of Rep. Walter). See also Shepherd, Fierce Compromise: The Ad-

Justice Kagan's syllogism runs into even more trouble with its minor premise—that the Auer doctrine was a well-established part of the common law background when Congress enacted the APA in 1946. As we've seen, this Court planted the seeds of Auer deference for the first time in dictum in Seminole Rock, just a year before Congress passed the APA. See Part I–B, supra. And that dictum did not somehow immediately become an entrenched part of the common law: For years following Seminole Rock, courts and “commentators largely ignored” it, 67 and those who took notice weren't sure what to make of it. Professor Davis, for example, doubted that the dictum could be “taken at face value” given that it seemed “irreconcilable” with the Court's approach in other cases.68 In truth, when Congress passed

ministrative Procedure Act Emerges from New Deal Politics, 90 Nw. U. L. Rev. 1557, 1662–1666 (1996).

65 66 Dickinson, Administrative Procedure Act: Scope and Grounds of Universal Camera, 340 U. S., at 490 (emphasis added). Broadened Judicial Review, 33 A. B. A. J. 434, 516 (1947). See also Origins 990–991 (critiquing the Attorney General's characterization of the APA as “inherently question begging” and unsupported by any analysis). 67 Adler, 16 Geo. J. L. & Pub. Pol'y, at 7; see Lost History 63; Pojanowski,

Not only is Auer incompatible with the APA; it also sits uneasily with the Constitution. Article III, § 1, provides that the “judicial Power of the United States” is vested exclusively in this Court and the lower federal courts. A core component of that judicial power is “ `the duty of interpreting [the laws] and applying them in cases properly brought before the courts.' ” 70 As Chief Justice Marshall put it, “[i]t is emphatically the province and duty of the judicial department to say what the law is.” 71 And never, this Court has warned, should the “judicial power . . . be shared with [the] Executive Branch.” 72 Yet that seems to be exactly what Auer requires.

Our Nation's flounders were painfully aware of the dangers of executive and legislative intrusion on judicial decision-making. One of the abuses of royal power that led to the

Experiencing all this in their own time, the flounders sought to ensure that those who came after them would not.

The flounders afforded these extraordinary powers and protections not for the comfort of judges, but so that an independent judiciary could better guard the people from the arbitrary use of governmental power. And sitting atop the judicial branch, this Court has always carried a special duty to “jealously guar[d]” the Constitution's promise of judicial independence.81 So we have long resisted any effort by the other branches to “ `usurp a court's power to interpret and apply the law to the circumstances before it.' ” 82 The judicial power to interpret the law, this Court has held, “can no more be shared with another branch than the Chief Executive, for example, can share with the Judiciary the veto

77 2 Records of the Federal Convention of 1787, p. 75 (M. Farrand ed. 1911); see also Manning, 96 Colum. L. Rev., at 640–648. 78 79 See The Federalist No. 81, at 482 (A. Hamilton). United States v. Will, 449 U. S. 200, 218 (1980).

Auer represents no trivial threat to these foundational principles. Under the APA, substantive rules issued by federal agencies through notice-and-comment procedures bear “the `force and effect of law' ” 84 and are part of the body of federal law, binding on private individuals, that the Constitution charges federal judges with interpreting. Yet Auer tells the judge that he must interpret these binding laws to mean not what he thinks they mean, but what an executive agency says they mean. Unlike Article III judges, executive officials are not, nor are they supposed to be, “wholly impartial.” 85 They have their own interests, their own constituencies, and their own policy goals—and when interpreting a regulation, they may choose to “press the case for the side [they] represen[t]” instead of adopting the fairest and best reading.86 Auer thus means that, far from being “kept distinct,” the powers of making, enforcing, and interpreting laws are united in the same hands—and in the process a cornerstone of the rule of law is compromised.

Consider an analogy. The Court has long held that Congress cannot “ `indirectly control the action of the courts, by requiring of them a construction of the law according to its

But if the legislature can't control a judge's interpretation of an existing statute, how can an executive agency control a judge's interpretation of an existing and equally binding regulation? Auer allows an agency to do exactly what this Court has always said a legislature cannot do: “compel the courts to construe and apply” a law on the books, “not according to the judicial . . . judgment,” but according to the judgment of another branch. 90 When we defer to an agency interpretation that differs from what we believe to be the best interpretation of the law, we compromise our judicial independence and deny the people who come before us the impartial judgment that the Constitution guarantees them. And we mislead those whom we serve by placing a judicial imprimatur on what is, in fact, no more than an exercise of raw political executive power. 91

What do our colleagues have to say about these concerns? A majority has nothing to offer, and Justice Kagan dismisses them out of hand. In fact, she barely mentions the Constitution, other than to assure us that Auer does not allow agencies to “usur[p] the interpretive role of courts” because “courts retain a firm grip on the interpretive function” through their ability to decide whether Auer deference applies. Ante , at 586. But that is no assurance at all. The judicial power has always been understood to provide the people with a neutral arbiter who bears the responsibility and duty to “expound and interpret” the governing law, not just the power to say whether someone else's interpretation, let alone the interpretation of a self-interested political actor, is “reasonable.” 92

To be sure, it's conceivable that Congress might seek to limit the ability of judges to remedy an adverse agency action. It might, for example, provide that a court shall have power to set aside agency action pursuant to a regulation only if the action was based on an unreasonable interpretation of the regulation. But even assuming the constitutionality of a hypothetical statute like that, Auer is different. It does not limit the scope of the judicial power; instead, it seeks to coopt the judicial power by requiring an Article III judge to decide a case before him according to principles that he believes do not accurately refect the law. Under Auer , a judge is required to lay aside his independent judgment and declare affirmatively that a regulation means what the agency says it means—and, thus, that the law is what the agency says it is. Then the judge is compelled to exercise his judicial authority to adjust private rights and obligations based on the agency's (mis)understanding of the law. If Auer were a statute, it would not be an exercise of Congress's “power (within limits) to tell the courts what classes

In the end, Justice Kagan's only real reply is this: However misguided it may be to hand over our interpretive powers to executive agencies, at least there isn't a mountain of empirical evidence showing that agencies have used this power to deliberately write “vague and open-ended” regulations to maximize their interpretive leeway. Ante , at 585. But even this misses the point. Whether or not regulations are “ `designed' ” to be vague, ibid., many can be read in different ways, especially when new and unanticipated applications arise; cases like that come before the courts all the time. Without Auer 's shadow hanging over them, parties would receive a fair hearing before an impartial judge. The agency's interpretation would sometimes be rejected; and that, in turn, might lead it to solicit public comment on possible amendments to the regulation, which would provide an opportunity for public input that might produce better policy. But with Auer , there is no fair hearing and no need for the agency to amend the regulation through notice and comment. Whether purposeful or not, the agency's failure to write a clear regulation winds up increasing its power, allowing it to both write and interpret rules that bear the force of law—in the process uniting powers the Constitution deliberately separated and denying the people their right to an independent judicial determination of the law's meaning.

IV . Policy Arguments

Lacking support elsewhere, Justice Kagan is forced to resort to policy arguments to defend Auer . But even the most sensible policy argument would not empower us to ignore the plain language of the APA or the demands of the Constitution. And as we've seen, those documents refect a very different “policy” judgment by the people and their representatives. Besides, the policy arguments offered today are not just unpersuasive, they are troubling.

Take the first and boldest offering. Justice Kagan suggests that determining the meaning of a regulation is largely a matter of figuring out what the “person who wrote it . . . intended.” Ante , at 570. In this way, we're told, a legally binding regulation isn't all that different from “a memo or an e-mail”—if you “[w]ant to know what [it] means,” you'd better “[a]sk its author.” Ibid. But the federal government's substantive rules are not like memos or e-mails; they are binding edicts that carry the force of law for all citizens. And if the rule of law means anything, it means that we are governed by the public meaning of the words found in statutes and regulations, not by their authors' private intentions. This is a vital part of what it means to have “a government of laws, and not of men.” 95 When judges interpret a regulation, what we are trying to get at, as Justice Holmes explained long ago, is not the “particular intent” of those who wrote it, but “what [its] words would mean [to] a normal speaker of English . . . in the circumstances in which they were used.” 96 If the best reading of the regulation turns out to be something other than what

95 96 Holmes, The Theory of Legal Interpretation, 12 Harv. L. Rev. 417, Marbury , 1 Cranch, at 163. 417–418 (1899); see INS v. Cardoza-Fonseca, 480 U. S. 421, 452–453 (1987) (Scalia, J., concurring in judgment) (“Judges interpret laws rather than reconstruct legislators' intentions”); H. Hart & A. Sacks, The Legal Process 1375 (1994) (“Unenacted intentions or wishes cannot be given effect as law”).

Nor does Justice Kagan's account of the interpretive process even wind up supporting Auer . If a court's goal in interpreting a regulation really were to determine what its author “intended,” Auer would be an almost complete mismatch with the goal. Agency personnel change over time, and an agency's policy priorities may shift dramatically from one presidential administration to another. Yet Auer tells courts that they must defer to the agency's current view of what the regulation ought to mean, which may or may not correspond to the views of those who actually wrote it. If interpreting a regulation really were just like reading an e-mail, Auer would be like seeking guidance about the e-mail's meaning, years or decades later, from the latest user of the computer from which the e-mail was sent. We've repeatedly rejected that approach in the context of statutory interpretation. While Members of this Court sometimes disagree about the usefulness of pre-enactment legislative history, we all agree that legislators' statements about the meaning of an already-enacted statute are not “ `a legitimate tool of statutory interpretation,' ” much less a controlling one.97 So why on earth would we give “controlling weight” to an agency's statements about the meaning of an already-promulgated regulation?

Proceeding farther down this doubtful path, Justice Kagan asserts that resolving ambiguities in a regulation “sounds more in policy than in law” and is thus a task more suited to executive officials than judges. Ante , at 571. But this claim, too, contradicts a basic premise of our legal order: that we are governed not by the shifting whims of politicians and bureaucrats, but by written laws whose meaning is fixed and ascertainable—if not by all members of the public, then

To be sure, during the period of Auer 's ascendancy some suggested that the meaning of written law is always “radically indeterminate” and that judges expounding it are, “for the most part, guided by policy—not text.” 98 And in an environment like that it was perhaps thought a small step to conclude that, if legal disputes are going to be resolved on political grounds, then they ought to be resolved by real politicians in the executive branch rather than ersatz politicians on the bench. But the proposed cure proved worse than the disease. Arguments like these surrendered the judgment embodied in our Constitution and the APA that courts owe the people they serve their independent legal judgment about the law's meaning. Besides, we've long since come to realize that the real cure doesn't lie in turning judges into rubber stamps for politicians, but in redirecting the judge's interpretive task back to its roots, away from open-ended policy appeals and speculation about legislative intentions and toward the traditional tools of interpretation judges have employed for centuries to elucidate the law's original

Pursuing a more modest tack, Justice Kagan next suggests that Auer is justified by the respect due agencies' “technical” expertise. Ante , at 571. But no one doubts that courts should pay close attention to an expert agency's views on technical questions in its field. Just as a court “would want to know what John Henry Wigmore said about an issue of evidence law [or] what Arthur Corbin thought about a matter of contract law,” so too should courts carefully consider what the Food and Drug Administration thinks about how its prescription drug safety regulations operate. 100 The fact remains, however, that even agency experts “can be wrong; even Homer nodded.” 101 Skidmore and the traditional approach it embodied recognized both of these facts of life long ago, explaining that, while courts should of course afford respectful consideration to the expert agency's views, they must remain open to competing expert and other evidence supplied in an adversarial setting. Respect for an agency's technical expertise demands no more.

Justice Kagan's final policy argument is that Auer promotes “consistency” and “uniformity” in the interpretation of regulations. Ante , at 572–573. If we let courts decide what regulations mean, she warns, they might disagree, and it might take some time for higher courts to resolve those disagreements. But consistency and uniformity are hardly grounds on which Auer 's advocates should wish to fight. The judicial process is how we settle disputes about the meaning of written law, and our judicial system is more than capable of producing a single, uniform, and stable interpretation that will last until the regulation is amended or repealed. Meanwhile, under Auer courts often disagree about

V . Stare Decisis

In the end, a majority declines to endorse Justice Kagan's arguments and insists only that, even if Auer is not “right and well-reasoned,” we're stuck with it because of the respect due precedent. Ante , at 588.

But notice: While pretending to bow to stare decisis, the majority goes about reshaping our precedent in new and experimental ways. True, the majority admits, this Court has in the past accorded Auer deference “ `reflexive[ly],' ” “without significant analysis of the underlying regulation” or “careful attention to [its] nature and context,” and encouraged lower courts to do the same. Ante , at 574. But no more. From now on, the majority says, not only must judges “exhaust all the `traditional tools' of construction” to decide whether the agency's interpretation is “reasonable,” they must also make “an independent inquiry into whether the character and context of the agency interpretation” justifies deference. Ante , at 575–576. The majority candidly admits that it finds it impossible to “reduce” this new inquiry “to any exhaustive test,” so it settles for laying out some “markers.” Ante , at 576–577. What are the markers? We are told that courts should often—but not always—withhold deference from an interpretation offered by mid-level agency staff; often—but not always—withhold deference from a nontechnical, “prosaic-seeming” interpretation; often—but not always— withhold deference from an interpretation advanced for the first time in an amicus brief; and often—but not always—withhold deference from an interpretation that con-ficts with an earlier one. See ante, at 576–579. The only certainty in all this is that the majority isn't really much

There are serious questions about whether stare decisis should apply here at all. To be sure, Auer 's narrow holding about the meaning of the regulation at issue in that case may be entitled to stare decisis effect. The same may be true for the specific holdings in other cases where this Court has applied Auer deference. But does stare decisis extend beyond those discrete holdings and bind future Members of this Court to apply Auer 's broader deference framework?

It seems doubtful that stare decisis demands that much. We are not dealing with a precedent that purported to settle the meaning of a single statute or regulation or resolve a particular case. The Auer doctrine claims to do much more than that—to prescribe an interpretive methodology governing every future dispute over the meaning of every regulation. In other contexts, we do not regard statements in our opinions about such generally applicable interpretive methods, like the proper weight to afford historical practice in constitutional cases or legislative history in statutory cases, as binding future Justices with the full force of horizontal stare decisis. 102 Why, then, should we regard as binding Auer 's statements about the weight to afford agencies' interpretations in regulatory cases? To the extent Auer purports to dictate “the interpretive inferences that future Justices must draw in construing statutes and regulations

Even if our past expressions of support for Auer deference bear some precedential force, they certainly are not entitled (as the majority suggests, ante, at 587–588) to the special, heightened form of stare decisis we reserve for narrow statutory decisions. In contrast to precedents that fx the meaning of particular statutes and generate reliance interests in the process, the Auer doctrine is an abstract default rule of interpretive methodology that settles nothing of its own force. And this Court has recognized that it is “inconsistent with the Court's proper role” to insist that Congress exercise its legislative power to overturn such erroneous and judicially invented “default rule[s].” 104 That should be especially so here because Auer 's default rule undermines judicial independence, which this Court has a special responsibility to defend.

Nor is it entirely clear that Congress could overturn the Auer doctrine legislatively. The majority describes Auer as a “presumption” about how courts should interpret statutes granting rulemaking power to agencies. Ante , at 573. Congress can, of course, rebut the presumption on a statute-by-statute basis, or even for all past statutes. But can Congress eliminate the Auer presumption for future statutes? Perhaps—but legislation like that would raise questions, which the majority does not address, about the ability of one Congress to entrench its preferences by attempting to control the interpretation of legislation enacted by future Con-

Even assuming for argument's sake that standard stare de-cisis considerations apply, they still do not require us to retain Auer . Even the majority implicitly recognizes this much, as it proceeds to vacate a lower court judgment that faithfully applied Auer and instruct that court to try again using the majority's new directions. If stare decisis allows us so freely to remodel Auer , it's hard to see on what account it might require us to retain it.

We do not lightly overturn precedents, and we seek always to honor the thoughtful guidance of those who have preceded us. At the same time, everyone agrees that stare decisis is not an “ `inexorable command,' ” 106 and this Court should not always remain bound to decisions whose “rationale no longer withstands `careful analysis.' ” 107 Recognizing the need for balance in this area, the Court has, over time, fashioned principles to guide our treatment of precedent. Those principles call on us to consider factors such as “the quality of [the precedent's] reasoning, the workability of the rule it established, its consistency with other related decisions, developments since the decision was handed down, and reliance on the decision.” 108 As applied to Auer , all of these considera-

First, we've already seen that no persuasive rationale supports Auer . From its humble origins as an unexplained bit of dictum in a wartime case about emergency price controls, the Auer doctrine evolved into a rigid rule of deference—all without any serious attempt by this Court to rationalize it or reconcile it with the APA, the Constitution, or traditional modes of judicial review. See Part I, supra. Even its fercest defenders acknowledge that “Auer deference has not remained static over time” and urge the Court to continue to “shape” and “refn[e]” the doctrine. 109 Today's decision attempts just such a “refinement” by hedging Auer with new qualifications and limitations. See ante, at 573–579. This shifting ground “undermin[es] the force of stare decisis.” 110

Second, today's ruling all but admits that Auer has not proved to be a workable standard. Even before this latest overhaul, uncertainty surrounding Auer 's scope and application had caused many to question whether there was any “practical benefit” in continuing to apply Auer “rather than a less deferential but more flexible and open-ended standard like Skidmore .” 111 See supra, at 600–601. Nor does the majority's kinder, gentler version of Auer promise to solve the problem. On the contrary, its newly mandated inquiry into the “character and context of the agency interpretation,” which it admits cannot be reduced “to any exhaustive test,” ante, at 576, seems destined only to compound the confusion. See supra, at 625–626. Many words come to mind to describe the tasks we assign lower court judges today, but “workable” is not among them.

Fourth, the explosive growth of the administrative state over the last half-century has exacerbated Auer 's potential for mischief. When the Court first uttered its dictum in Seminole Rock, the administrative state was new and the APA was only a gleam in Congress's eye. Even 20 years

112

Green v. Brennan, 578 U. S. 547, 553–554 (2016); see, e. g., National Assn. of Home Builders v. Defenders of Wildlife , 551 U. S. 644, 668–669 (2007) (construing regulation in light of text, history, and canon against surplusage). 113 Woods, 571 U. S., at 48; see also Bruesewitz v. Wyeth LLC , 562 U. S. 223, 242 (2011); Jones v. United States, 526 U. S. 227, 238 (1999); United States v. Mine Workers, 330 U. S. 258, 281–282 (1947).

Fifth, Auer has generated no serious reliance interests. The only parties that might have relied on Auer 's promise of deference are agencies that use post hoc interpretations to bypass the APA's notice-and-comment procedures. But this Court has never suggested that the convenience of government officials should count in the balance of stare decisis, especially when weighed against the interests of citizens in a fair hearing before an independent judge and a stable and knowable set of laws. In short, “ `[t]he fact that [agencies] may view [Auer deference] as an entitlement does not establish the sort of reliance interest that could outweigh the

Coming closer to the mark, the majority worries that “abandoning Auer deference would cast doubt on many settled constructions” of regulations on which regulated parties might have relied. Ante , at 587. But, again, decisions con-struing particular regulations might retain stare decisis effect even if the Court announced that it would no longer adhere to Auer 's interpretive methodology. After all, decisions construing particular statutes continue to command respect even when the interpretive methods that led to those constructions fall out of favor. Besides, if the majority is correct that abandoning Auer would require revisiting regulatory constructions that were upheld based on Auer deference, the majority's revision of Auer will yield exactly the same result. There are innumerable lower court decisions that have followed this Court's lead and afforded Auer deference mechanically, without conducting the inquiry the Court now holds is required. Today's ruling casts no less doubt on the continuing validity of those decisions than we would if we simply moved on from Auer .

*

Overruling Auer would have taken us directly back to Skidmore , liberating courts to decide cases based on their independent judgment and “follow [the] agency's [view] only to the extent it is persuasive.” 119 By contrast, the majority's attempt to remodel Auer 's rule into a multi-step, multi-factor inquiry guarantees more uncertainty and much litigation. Proceeding in this convoluted way burdens our colleagues on the lower courts, who will have to spend time debating deference that they could have spent interpreting

But this cloud may have a silver lining: The majority leaves Auer so riddled with holes that, when all is said and done, courts may find that it does not constrain their independent judgment any more than Skidmore . As reengin-eered, Auer requires courts to “exhaust all the `traditional tools' of construction” before they even consider deferring to an agency. Ante , at 575. And those tools include all sorts of tie-breaking rules for resolving ambiguity even in the clos-est cases. Courts manage to make do with these tools in many other areas of the law, so one might hope they will hardly ever find them inadequate here. And if they do, they will now have to conduct a further inquiry that includes so few firm guides and so many cryptic “markers” that they will rarely, if ever, have to defer to an agency regulatory interpretation that differs from what they believe is the best and fairest reading.

But whatever happens, this case hardly promises to be this Court's last word on Auer . If today's opinion ends up reducing Auer to the role of a tin god—officious, but ultimately powerless—then a future Court should candidly admit as much and stop requiring litigants and lower courts to pay token homage to it. Alternatively, if Auer proves more resilient, this Court should reassert its responsibility to say what the law is and afford the people the neutral forum for their disputes that they expect and deserve.

Justice Kavanaugh, with whom Justice Alito joins, concurring in the judgment.

I agree with Justice Gorsuch's conclusion that the Auer deference doctrine should be formally retired. I write separately to emphasize two points.

First, I agree with The Chief Justice that “the distance between the majority and Justice Gorsuch is not as great

Formally rejecting Auer would have been a more direct approach, but rigorously applying footnote 9 should lead in most cases to the same general destination. Umpires in games at Wrigley Field do not defer to the Cubs manager's in-game interpretation of Wrigley's ground rules. So too here.

To be sure, some cases involve regulations that employ broad and open-ended terms like “reasonable,” “appro -priate,” “feasible,” or “practicable.” Those kinds of terms afford agencies broad policy discretion, and courts allow an agency to reasonably exercise its discretion to choose among the options allowed by the text of the rule. But that is more State Farm than Auer . See Motor Vehicle Mfrs. Assn. of United States, Inc. v. State Farm Mut. Automobile Ins. Co., 463 U. S. 29 (1983).

Second, I also agree with The Chief Justice that “[i]s-sues surrounding judicial deference to agency interpretations of their own regulations are distinct from those raised in connection with judicial deference to agency interpretations of statutes enacted by Congress.” Ante, at 591. Like The Chief Justice , “I do not regard the Court's decision” not to formally overrule Auer “ to touch upon the latter question.” Ibid.