Petition for Writ of Certiorari — Derek Steven Trumbull, Petitioner v. United States
Supreme Court briefMar 21, 2025
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APPENDIX A
United States v. Trumbull, 114 F.4th 1114 (9th Cir. 2024)
United States v. Trumbull, 114 F.4th 1114 (2024)
2024 Daily Journal D.A.R. 8042
Affirmed.
114 F.4th 1114
United States Court of Appeals, Ninth Circuit.
UNITED STATES of
America, Plaintiff - Appellee,
v.
Derek Steven TRUMBULL,
Defendant - Appellant.
No. 23-912
|
Argued and Submitted May
6, 2024 Seattle, Washington
|
Filed August 22, 2024
Synopsis
Background: Defendant pled guilty in the
United States District Court for the District
of Montana, Dana L. Christensen, J., to
being a felon in possession of a firearm, and
was sentenced to 24 months’ imprisonment
followed by a three-year term of supervised
release. Defendant appealed.
Holdings: The Court of Appeals, Owens,
Circuit Judge, held that:
Sentencing Guidelines commentary reasonably
defined ambiguous term “large capacity
magazine,” thus warranting judicial deference,
and
offense involved a semiautomatic firearm
capable of accepting a large capacity magazine,
for purposes of enhancing base offense level.
Bea, Circuit Judge, filed opinion concurring in
judgment.
Procedural Posture(s): Appellate Review;
Sentencing or Penalty Phase Motion or
Objection.
West Codenotes
Recognized as Unconstitutional
Cal. Penal Code § 32310
Recognized as Preempted
N.J. Stat. Ann. § 2C:39-3
*1116 Appeal from the United States District
Court for the District of Montana Dana L.
Christensen, District Judge, Presiding, D.C.
No. 9:22-cr-00052-DLC-1
Attorneys and Law Firms
Karla E. Painter (argued), Assistant United
States Attorney, District of Montaana; Jesse
A. Laslovich, United States Attorney; United
States Department of Justice, United States
Attorney's Office, Missoula, Montana; Tim
Tatarka, Assistant United States Attorney,
United States Department of Justice, United
States Attorney's Office, Billings, Montana; for
Plaintiff-Appellee.
John Rhodes (argued), Assistant Federal Public
Defender; Rachel Julagay, Federal Defender,
District of Montana; Federal Defenders of
Montana (Missoula), Missoula, Montana; for
Defendant-Appellant.
Before: William A. Fletcher, Carlos T. Bea, and
John B. Owens, Circuit Judges.
© 2025 Thomson Reuters. No claim to original U.S. Government Works.
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United States v. Trumbull, 114 F.4th 1114 (2024)
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*1117 indicted on federal felon-in-possession
charges. He pled guilty without a plea
agreement to one count of being a prohibited
person in possession of a firearm in violation of
18 U.S.C. § 922(g)(1).
Opinion by Judge Owens;
Concurrence by Judge Bea
OPINION
OWENS, Circuit Judge:
Derek Steven Trumbull pled guilty to being a
felon in possession of a firearm in violation of
18 U.S.C. § 922(g)(1) and received a below
Guidelines sentence of twenty-four months’
imprisonment, followed by a three-year term
of supervised release. He now challenges
the calculation of his Guidelines range—
specifically, the increase of his base offense
level under U.S.S.G. § 2K2.1(a)(4)(B) (U.S.
Sent'g Comm'n 2023). We affirm.
I. BACKGROUND
On March 8, 2022, a Missoula Motel 6
employee called 911 to report that a man had
been passed out for over three hours in a
running vehicle in the parking lot. Officers
arrived to conduct a welfare check and found
Derek Steven Trumbull in the car with a
Glock 17 on his hip. The firearm was loaded
with a magazine containing seventeen rounds
of nine-millimeter ammunition, and Trumbull
was also carrying two spare Glock magazines
—one equipped with the standard seventeen
rounds of nine-millimeter ammunition and the
other with eighteen rounds of nine-millimeter
ammunition.
Trumbull
had
multiple
prior
felony
The
Probation
Office's
Presentence
Investigation Report (“PSR”) calculated
Trumbull's base offense level as twenty under
U.S.S.G. § 2K2.1 (U.S. Sent'g Comm'n 2023),
which is the Guideline for a violation of
18 U.S.C. § 922(g)(1). Section 2K2.1 sets
the base offense level at twenty if “the (i)
offense involved a (I) semiautomatic firearm
that is capable of accepting a large capacity
magazine ... and (ii) defendant (I) was a
prohibited person at the time the defendant
committed the instant offense.” § 2K2.1(a)(4)
(B) (emphasis added). Section 2K2.1 does not
define a “semiautomatic firearm that is capable
of accepting a large capacity magazine,” but
Application Note 2 of the commentary to §
2K2.1 (“Application Note 2”) says it means:
a semiautomatic firearm that
has the ability to fire many
rounds without reloading
because at the time of the
offense (A) the firearm had
attached to it a magazine
or similar device that could
accept more than 15 rounds
of ammunition; or (B) a
magazine or similar device
that could accept more than
15 rounds of ammunition
was in close proximity to the
firearm.
convictions. 1 On October 26, 2022, he was
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United States v. Trumbull, 114 F.4th 1114 (2024)
2024 Daily Journal D.A.R. 8042
§ 2K2.1 cmt. n.2.
The PSR deducted three levels for Trumbull's
acceptance of responsibility, so his total offense
level was seventeen. Based on Trumbull's
offense level of seventeen and criminal history
category of IV, his Guidelines range was thirtyseven to forty-six months’ imprisonment.
Trumbull objected to the PSR. He did not
dispute that the firearm he possessed fell
within Application Note 2. Instead, he attacked
Application Note 2 on its face as an invalid
interpretation of § 2K2.1 under Kisor v. Wilkie,
588 U.S. 558, 139 S.Ct. 2400, 204 L.Ed.2d 841
(2019). The district court overruled Trumbull's
objection and applied § 2K2.1, as interpreted in
Application Note 2, in calculating Trumbull's
Guidelines range.
The district court sentenced Trumbull to a
below Guidelines sentence of twenty-four
months’ imprisonment, followed by a threeyear term of supervised release, to run
concurrently with any sentences imposed
in pending state proceedings. Trumbull has
finished serving his federal prison term, and his
federal supervised release will begin once he is
released from state custody.
On appeal, Trumbull reasserts that Application
Note 2 is an invalid interpretation of the
phrase “semiautomatic firearm that is capable
of accepting a large capacity magazine” in §
2K2.1, and the district court erred by adopting
it.
II. DISCUSSION
A. Standard of Review and Kisor
Deference
We review a district court's interpretation of the
Guidelines de novo. United States v. Castillo,
69 F.4th 648, 652 (9th Cir. 2023).
The Supreme Court has said that the
commentary to the Guidelines “is akin to an
agency's interpretation of its own legislative
rules.” Stinson v. United States, 508 U.S. 36,
45, 113 S.Ct. 1913, 123 L.Ed.2d 598 (1993).
As a result, we apply Kisor v. Wilkie, 588 U.S.
558, 139 S.Ct. 2400, 204 L.Ed.2d 841 (2019),
to determine whether *1118 to defer to the
commentary's interpretation of a Guideline. 2
Castillo, 69 F.4th at 655–56.
B. Application Note 2's Definition of
“Large Capacity Magazine” Warrants
Deference under Kisor
Kisor held that a court should defer to an
agency's interpretation of its own regulation
if (1) the regulation is “genuinely ambiguous”
after “exhaust[ing] all the ‘traditional tools’
of construction”; (2) the interpretation is
“reasonable”; and (3) “the character and
context of the agency interpretation entitles
it to controlling weight” because (i) the
interpretation is the agency's “ ‘official
position,’ rather than any more ad hoc
statement not reflecting the agency's views”;
(ii) the interpretation “implicate[s] [the
agency's] substantive expertise”; and (iii) the
interpretation reflects the agency's “fair and
considered judgment.” 588 U.S. at 574–79,
139 S.Ct. 2400 (citations omitted). Application
Note 2 satisfies these requirements.
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First, the term “large capacity magazine”
is ambiguous within the meaning of Kisor
because of the relative nature of the word
“large.” In Entergy Corp. v. Riverkeeper, Inc.,
556 U.S. 208, 129 S.Ct. 1498, 173 L.Ed.2d 369
(2009), the Supreme Court considered whether
to defer to the Environmental Protection
Agency's interpretation of the phrase “best
technology available for minimizing adverse
environmental impact” under Chevron, U.S.A.,
Inc. v. Natural Resources Defense Council,
Inc., 467 U.S. 837, 104 S.Ct. 2778, 81
L.Ed.2d 694 (1984), overruled by Loper Bright
Enters. v. Raimondo, ––– U.S. ––––, 144 S.
Ct. 2244, 219 L.Ed.2d 832 (2024). Entergy
Corp., 556 U.S. at 218–19, 129 S.Ct. 1498.
Like Kisor, Chevron required ambiguity for
deference. Chevron, 467 U.S. at 842–43, 104
S.Ct. 2778. In Entergy Corp., the Court applied
Chevron and upheld the agency's interpretation
after rejecting the argument that “minimizing”
conclusively meant “reducing to the smallest
amount possible” because “ ‘minimize’ is a
term that admits of degree and is not necessarily
used to refer exclusively to the ‘greatest
possible reduction.’ ” Entergy Corp., 556 U.S.
at 218–19, 129 S.Ct. 1498.
Like “minimize,” “large” is ambiguous
because it “admits of degree.” Id. at
219, 129 S.Ct. 1498. The Oxford English
Dictionary Online defines “large” as “[g]reat
in size, amount, or degree; big; wide;
full.” Large, Oxford English Dictionary
Online,
https://www.oed.com/dictionary/
large_adj?tab=meaning_and_use#39730644
(last visited July 29, 2024). “Large” is
a comparative term. Whether a magazine's
capacity is “large” may vary depending on
the context or the purpose for which the
magazine is used. As a result, there is
“uncertaint[y]” about the meaning of “large
capacity magazine.” Kisor, 588 U.S. at 566,
139 S.Ct. 2400.
The structure of § 2K2.1 does not resolve
this uncertainty, nor do its history or purpose.
The phrase “large capacity magazine” was
added to § 2K2.1 in 2006, when the U.S.
Sentencing Commission (“the Commission”)
amended § 2K2.1 to delete cross-references
to expired provisions of the Violent Crime
Control and Law Enforcement Act of 1994,
Pub. L. No. 103–322, 108 Stat. 1796. U.S.S.G.,
Supp. Appx. C. Amend. 691 (Nov. 1, 2006).
The Violent *1119 Crime Control and Law
Enforcement Act of 1994 defined “large
capacity ammunition feeding device” as “a
magazine ... that has a capacity of ... more
than 10 rounds of ammunition.” Violent Crime
Control and Law Enforcement Act of 1994
§ 110103(b) (formerly codified at 18 U.S.C.
§ 921(a)(31)). This differing definition of
“large capacity magazine” also suggests that
the phrase is ambiguous.
Trumbull asserts that “large capacity
magazine” is not “ambiguous” under Kisor
because “[t]he plain language definition of
large is ‘relatively great.’ ” Thus, Trumbull
concedes that “ ‘large’ is a relative measure”
but suggests that this relativity is not enough
for ambiguity within the meaning of Kisor.
We disagree. A vague or imprecise regulation
can be ambiguous under Kisor. See Rafferty
v. Denny's, Inc., 13 F.4th 1166, 1181 (11th
Cir. 2021) (rejecting the argument that “when
Kisor said a regulation must have ‘multiple
reasonable meanings,’ it required, for the
first time, that a regulation not be just
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‘vague’ or lack precision ... but that it
satisfy essentially a term-of-art definition of
‘ambiguous’ ”). Accordingly, because “large
capacity magazine” is a relative term with
a meaning that may vary depending on the
context, it is ambiguous under Kisor.
Second, Application Note 2 is a reasonable
interpretation of “large capacity magazine.”
At least twelve states restrict or regulate the
possession of large capacity magazines, 3 and
three of those states define large capacity
magazine as Application Note 2 does. 4 Eight
states restrict magazines capable of accepting
ten rounds of ammunition. 5 Only one state
a magazine that can accept more than fifteen
rounds is not also a “large capacity magazine.”
*1120 Trumbull also objects to the “numeric
specificity” of Application Note 2. He asserts
that, by promulgating a bright-line rule,
the Commission was legislating rather than
interpreting. But Application Note 2 is a
valid interpretive rule because it “explain[s]”
the Guidelines by specifying what constitutes
“large.” United States v. Kirilyuk, 29 F.4th
1128, 1138 (9th Cir. 2022). It does “not enact
policy changes to them.” Id. Consequently,
Application Note 2's interpretation of “large
capacity magazine” is reasonable.
sets the floor higher. 6 Likewise, Congress
itself has previously defined “large capacity
ammunition feeding device” as “a magazine ...
that has a capacity of ... more than 10 rounds
of ammunition.” Violent Crime Control and
Law Enforcement Act of 1994 § 110103(b).
Application Note 2's interpretation of “large
capacity magazine” as more than fifteen
rounds “come[s] within the zone” of these
other definitions—somewhere between ten and
seventeen rounds. Kisor, 588 U.S. at 576, 139
S.Ct. 2400.
Finally, Application Note 2 meets the three
“especially important markers for identifying”
when deference is appropriate. Kisor, 588
U.S. at 576–77, 139 S.Ct. 2400. First, the
parties agree that Application Note 2 is the
Commission's “official position,” id. at 577,
139 S.Ct. 2400 (quoting United States v. Mead
Corp., 533 U.S. 218, 257–59 & n.6, 121
S.Ct. 2164, 150 L.Ed.2d 292 (2001) (Scalia,
J., dissenting)), which weighs in favor of
deference.
Trumbull contends that “large capacity
magazine” should be defined in relation to a
standard capacity magazine, and that standard
capacity should, in turn, be defined based on
what is popular within the gun industry. The
popularity of a firearm with a seventeen-round
capacity does not defeat the reasonableness of
Application Note 2. Something can be both
popular and large, such as the standard capacity
magazine of this popular firearm. But the
popularity of that firearm does not mean that
Second, in assessing the relative dangerousness
of magazines of different capacities, the
Commission acted within the scope of its
authority, see id. at 577–78, 139 S.Ct. 2400,
to “establish sentencing policies and practices
for the [f]ederal criminal justice system,”
28 U.S.C. § 991(b)(1). Trumbull argues that
Application Note 2 does not implicate the
Commission's substantive expertise because
it “parrots the statutory text” of the Violent
Crime Control and Law Enforcement Act of
1994. But Application Note 2 does not “parrot
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United States v. Trumbull, 114 F.4th 1114 (2024)
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the statutory text” because Application Note
2 provides a different (and more lenient)
definition of large capacity magazine than the
Violent Crime Control and Law Enforcement
Act of 1994 did. Indeed, Application Note
2 sets a higher floor for “large capacity
magazine.”
Third, the Court in Kisor cautioned against
deferring to a “convenient litigating position”
or “new interpretation ... that creates ‘unfair
surprise’ to regulated parties.” 588 U.S. at 579,
139 S.Ct. 2400 (first quoting Christopher v.
SmithKline Beecham Corp., 567 U.S. 142, 155,
132 S.Ct. 2156, 183 L.Ed.2d 153 (2012); and
then quoting Long Island Care at Home, Ltd.
v. Coke, 551 U.S. 158, 170, 127 S.Ct. 2339,
168 L.Ed.2d 54 (2007)). These concerns are
not present here. While the Commission is
not required to submit commentary to notice
and comment or congressional review, the
challenged definition in Application Note 2
was, in fact, published in the Federal Register
with a “request[ ] [for] comment regarding
whether there is an alternative definition [the
Commission] should consider,” see Sentencing
Guidelines for United States Courts, 71 Fed.
Reg. 4782, 4789–90 (Jan. 27, 2006) (defining
“[h]igh-capacity, semiautomatic firearm” as “a
semiautomatic firearm that has a magazine
capacity of more than [15] cartridges” (second
alteration in original)), and submitted to
Congress for review, Sentencing Guidelines
for United States Courts, 71 Fed. Reg. 28063,
28069–71 (May 15, 2006). 7 These procedural
steps support *1121 that Application Note 2
was an exercise of the Commission's “fair and
considered judgment.” Kisor, 588 U.S. at 579,
139 S.Ct. 2400 (quoting Christopher, 567 U.S.
at 155, 132 S.Ct. 2156).
III. CONCLUSION
Application Note 2's interpretation of “large
capacity magazine” in § 2K2.1 meets the
extensive requirements for deference laid out in
Kisor. Therefore, the district court did not err
in applying § 2K2.1(a)(4)(B), as interpreted by
Application Note 2, to Trumbull's base offense
level when calculating his Guidelines range.
AFFIRMED.
BEA, Circuit Judge, concurring in the
judgment:
I agree that the Glock 17 that DefendantAppellant Derek Trumbull possessed at
the time of his offense qualifies as a
“semiautomatic firearm that is capable of
accepting a large capacity magazine” for
purposes of enhancing his base offense level
under the Sentencing Guidelines. See U.S.S.G.
§ 2K2.1(a)(4)(B).
But I do not agree that Application Note 2
of the commentary to § 2K2.1 is entitled to
deference under Kisor v. Wilkie because, in
my view, the term “large capacity magazine”
is not “genuinely ambiguous.” See Kisor v.
Wilkie, 588 U.S. 558, 573, 139 S.Ct. 2400,
204 L.Ed.2d 841 (2019). “Large capacity
magazine” is not a term “genuinely susceptible
to multiple reasonable meanings,” unless the
context in which it was used were to include
publications such as Time. See id. at 581,
139 S.Ct. 2400 (emphasis added); Bowles v.
Seminole Rock & Sand Co., 325 U.S. 410,
414, 65 S.Ct. 1215, 89 L.Ed. 1700 (1945)
(deferring to an agency only “if the meaning
of the words used is in doubt” (emphasis
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added)). All agree that the meaning of the
term “large capacity magazine,” when used in
relation to a firearm, is a firearm magazine
that is “[g]reat in size, amount, or degree.”
Large, Oxford English Dictionary. When, as
here, a term has an “unquestionable meaning,”
it is not made ambiguous merely because it
has “uncertain application to various factual
situations.” Antonin Scalia & Bryan A. Garner,
Reading Law: The Interpretation of Legal Texts
31 (2012). People may disagree as to how many
cartridges must fit into a magazine to make it
“large.” But disagreement does not constitute
ambiguity. And Kisor, which recognized the
“strong judicial role in interpreting rules,” puts
the onus on courts—not agencies—to interpret
and apply unambiguous rules like § 2K2.1,
even if those rules are vague or imprecise. See
Kisor, 588 U.S. at 580, 139 S.Ct. 2400.
Rather than “wave the ambiguity flag” merely
because the “regulation [is] impenetrable on
first read,” see id. at 575, 139 S.Ct. 2400,
as the majority does today, I would “exhaust
all the ‘traditional tools’ of construction” to
interpret the term “large capacity magazine”
and apply that term to the facts of this case,
see id. (quoting *1122 Chevron U.S.A., Inc.
v. Nat. Res. Def. Council, Inc., 467 U.S. 837,
843 n.9, 104 S.Ct. 2778, 81 L.Ed.2d 694
(1984), overruled by Loper Bright Enters. v.
Raimondo, ––– U.S. ––––, 144 S. Ct. 2244, 219
L.Ed.2d 832 (2024)). Here, the Glock 17 that
Trumbull possessed at the time of his offense—
which could accept a magazine with 17 rounds
of ammunition—unambiguously qualifies as
a “semiautomatic firearm that is capable of
accepting a large capacity magazine” as that
term was understood when the current version
of § 2K2.1 was promulgated. See U.S.S.G. §
2K2.1(a)(4)(B). That should be the end of the
matter. We have “no business deferring to any
other reading” when the regulatory language
applies unambiguously to the facts before us.
See Kisor, 588 U.S. at 575, 139 S.Ct. 2400.
After all, it “makes no sense to speak of a
‘permissible’ interpretation that is not the one
the court, after applying all relevant interpretive
tools, concludes is best.” Loper Bright, 144 S.
Ct. at 2266.
Accordingly, I agree that the district court's
sentencing order should be affirmed. But
the majority's choice to assign interpretive
authority over the unambiguous language in
§ 2K2.1 to the Sentencing Commission “rests
on a profound misconception of the judicial
role” and expands Kisor deference far beyond
its limited scope. See id. at 2268. I therefore
concur only in the judgment.
I.
A.
In 1994, Congress enacted the Violent Crime
Control and Law Enforcement Act, Pub. L. No.
103–322, 108 Stat. 1796 (the “Act”). The Act
made it unlawful to possess specified firearms,
as well as “large capacity ammunition feeding
devices,” which it defined as a “magazine ...
that has a capacity of ... more than 10 rounds
of ammunition.” Violent Crime Control and
Law Enforcement Act, § 110103(b) (formerly
codified at 18 U.S.C. § 922(a)(31)). The Act
also directed the Sentencing Commission to
amend the Sentencing Guidelines to provide for
a sentencing enhancement in cases in which
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a “semiautomatic firearm is involved.” Id. §
110501.
In response, the Sentencing Commission took
two actions. First, it amended § 2K2.1 to
cross-reference the Act and, in turn, to provide
for an enhanced sentence in cases in which
an offender possessed a firearm specified
in the Act. U.S.S.G. § 2K2.1, Amend. 522
(Nov. 1995). Second, it amended § 5K2.17
to “provide a specific basis for an upward
departure when a high-capacity semiautomatic
firearm is possessed.” U.S.S.G. § 5K2.17,
Amend. 531 (Nov. 1995). Section 5K2.17,
like the Act, defined the term “high-capacity,
semiautomatic firearm” as a firearm “that has a
magazine capacity of more than ten cartridges.”
U.S.S.G. § 5K2.17 (1995).
In 2004, Congress allowed the weapons
prohibitions of the Act to expire. Because §
2K2.1 had cross-referenced the provisions of
the Act, the Sentencing Commission amended
§ 2K2.1 to “clarify that the enhanced base
offense levels continued to apply in the wake
of the sunset of the federal assault weapons
ban.” United States v. Gordillo, 920 F.3d 1292,
1298 (11th Cir. 2019); see U.S.S.G. § 2K2.1,
Amend. 691 (Nov. 2006) (explaining that the
Commission amended § 2K2.1 because it had
“received information regarding inconsistent
application as to whether the enhanced base
offense levels apply ... in light of the
ban's expiration”). Accordingly, the Sentencing
Commission deleted the cross-reference to
the Act and incorporated the language in
effect today: a base offense level enhancement
applies if a § 922(g)(1) offender possessed
a “semiautomatic firearm that is capable of
accepting a large capacity magazine.” See
*1123 U.S.S.G. § 2K2.1, Amend. 691. Section
2K2.1, however, does not define the term “large
capacity magazine.” Rather, the Sentencing
Commission issued Application Note 2 as
commentary to § 2K2.1. Application Note 2
provides:
[A] “semiautomatic firearm that is capable
of accepting a large capacity magazine”
means a semiautomatic firearm that has the
ability to fire many rounds without reloading
because at the time of the offense (A) the
firearm had attached to it a magazine or
similar device that could accept more than
15 rounds of ammunition; or (B) a magazine
or similar device that could accept more
than 15 rounds of ammunition was in close
proximity to the firearm.
U.S.S.G. § 2K2.1, App. Note 2.
B.
On March 8, 2022, Trumbull was arrested while
in possession of a Glock 17. The firearm was
loaded with a magazine containing 17 rounds
of ammunition. Trumbull was also carrying
one magazine that contained 17 rounds
of ammunition and another that contained
18 rounds of ammunition. Officers also
recovered a magazine containing 31 rounds
of ammunition in the trunk of Trumbull's
car. Trumbull, who had multiple prior felony
convictions, was indicted under 18 U.S.C. §
922(g)(1), which makes it a crime for any
person to possess a firearm if he had previously
been convicted of at least one felony. Trumbull
pleaded guilty.
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At sentencing, the district court afforded Kisor
deference to the commentary in Application
Note 2 and enhanced Trumbull's base offense
level from 14 to 20 pursuant to § 2K2.1.
Specifically, the district court determined that
Trumbull possessed a “semiautomatic firearm
that is capable of accepting a large capacity
magazine” under Application Note 2, because
the firearm he possessed at the time of his
offense “could accept more than 15 rounds of
ammunition.” U.S.S.G. § 2K2.1, App. Note
2. The district court imposed a sentence of
twenty-four months’ imprisonment, followed
by a three-year term of supervised release.
On appeal, Trumbull argues that the district
court erred when it afforded Kisor deference
to the commentary in Application Note 2 to §
2K2.1.
II.
Because courts have primary interpretive
authority over questions of law, we review the
district court's interpretation of the Sentencing
Guidelines de novo. See United States v.
Rivera-Constantino, 798 F.3d 900, 902 (9th Cir.
2015). As with any statute or regulation that
comes before us, “[w]e interpret the Sentencing
Guidelines using the ordinary tools of statutory
interpretation.” United States v. Martinez, 870
F.3d 1163, 1166 (9th Cir. 2017).
When the Sentencing Commission issues
commentary that purports to interpret
the Sentencing Guidelines, we apply the
“demanding deference standard articulated in
Kisor” to evaluate whether to give weight to
that commentary. United States v. Castillo, 69
F.4th 648, 655 (9th Cir. 2023). Under Kisor,
“the possibility of deference can arise only
if a regulation is genuinely ambiguous.” 588
U.S. at 573, 139 S.Ct. 2400. Accordingly,
if a Sentencing Guideline is unambiguous,
Kisor “makes it impermissible to defer” to
the commentary. Castillo, 69 F.4th at 663; see
Kisor, 588 U.S. at 574–75, 139 S.Ct. 2400 (“If
uncertainty does not exist, there is no plausible
reason for deference.”). The baseline of judicial
review stays in place, and it remains our duty to
interpret the Sentencing Guidelines, as in any
other statutory interpretation case. See Kisor,
588 U.S. at 580, 139 S.Ct. 2400 (cabining
the scope of agency deference to genuinely
ambiguous regulations *1124 to “maintain[ ]
a strong judicial role in interpreting rules”).
Accordingly, the threshold question under
Kisor is always whether a rule is “genuinely
ambiguous.” Id. at 573, 139 S.Ct. 2400. No
ambiguity, no deference. And a court may
not merely “wave the ambiguity flag just
because it found the regulation impenetrable
on first read.” Id. at 575, 139 S.Ct. 2400.
Rather, “before concluding that a rule is
genuinely ambiguous, a court must exhaust
all the ‘traditional tools’ of construction,” just
as “it would if it had no agency to fall back
on.” Id. (quoting Chevron, 467 U.S. at 843
n.9, 104 S.Ct. 2778). In other words, Kisor
requires us to conduct a searching inquiry into
the meaning of a rule before assigning our
interpretive authority—the core of the judicial
power—to an agency. See id. at 580–81, 139
S.Ct. 2400.
A.
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The majority concludes that the term “large
capacity magazine” is ambiguous because the
term “large” is relative, vague, and imprecise.
Maj. Op. at 1118-19. I do not dispute that
characterization. But Kisor does not allow
us to skirt our judicial role any time a
regulation is vague, relative, or difficult to
apply. See Kisor, 588 U.S. at 575, 139
S.Ct. 2400 (“[H]ard interpretive conundrums,
even relating to complex rules, can often be
solved.”). Rather, it is our duty as judges to
resolve these uncertainties ourselves.
1.
The majority's assertion that § 2K2.1 is
ambiguous because the term “large capacity
magazine” is “vague or imprecise” overlooks
the fundamental distinction between ambiguity
and vagueness. Maj. Op. at 1119; see Brian
H. Bix, A Dictionary of Legal Theory 217
(2004) (“Vagueness should not be confused
with ambiguity.”). A term is ambiguous
“when the question is which of two or more
meanings applies,” such as whether “table”
refers to furniture or a mathematical chart.
Scalia & Garner, Reading Law 31–32; see
Robinson v. Shell Oil Co., 519 U.S. 337,
341, 343, 117 S.Ct. 843, 136 L.Ed.2d 808
(1997) (explaining that the “ambiguity of
statutory language is determined by reference
to the language itself”) 1 . In contrast,
a term is vague—not ambiguous—when
its “unquestionable meaning has uncertain
application to various factual situations.”
Scalia & Garner, Reading Law 32; see
Rafferty v. Denny's, Inc., 13 F.4th 1166,
1199 (11th Cir. 2021) (Luck, J., concurring
in the judgment) (noting the “difference
between more-than-one-meaning (ambiguity)
and uncertain application (vagueness)”). If a
court can deduce the meaning of the words after
“performing [a] thoroughgoing review,” the
term is not ambiguous; it is vague. See Kisor,
588 U.S. at 581, 139 S.Ct. 2400. And Kisor
deference applies only to ambiguous rules, not
to vague rules.
The Supreme Court recognized as much in
Kisor. There, the Court reasoned that a term is
ambiguous only if it is “genuinely susceptible
to multiple reasonable meanings.” Id. And it
cited Seminole Rock to clarify that a court
may defer to an agency “only ‘if the meaning
of the words used is in doubt.’ ” Id. at 574,
139 S.Ct. 2400 (emphases added) (quoting
Seminole Rock, 325 U.S. at 414, 65 S.Ct. 1215).
In other words, Kisor deference applies only
when the meaning of the words used in the
rule is uncertain; not when their application
is uncertain. See id. at 573, 139 S.Ct. 2400
(“[W]hen we use that term, we mean it
—genuinely ambiguous, even after a court
*1125 has resorted to all the standard tools
of interpretation.”). When a rule's application
is uncertain, courts retain the responsibility to
interpret and apply it, as in every other statutory
interpretation case.
Here, the words “large capacity magazine,”
when used in reference to firearms, are not
“genuinely susceptible to multiple reasonable
meanings.” See id. at 581, 139 S.Ct. 2400.
We all agree that the meaning of the term is
a firearm magazine that is “[g]reat in size,
amount, or degree; big; wide; full.” Large,
Oxford English Dictionary. There is therefore
no dispute regarding “the meaning of the words
used.” See Seminole Rock, 325 U.S. at 414,
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65 S.Ct. 1215. The question, rather, is whether
the unambiguous language in § 2K2.1 applies
to the firearm that Trumbull possessed at the
time of his arrest. That makes the term “large
capacity magazine” vague or imprecise, but not
ambiguous. And Kisor requires judges—not
agencies—to interpret and apply such vague
but unambiguous rules. See Kisor, 588 U.S. at
580–81, 139 S.Ct. 2400.
2.
In equating vagueness to ambiguity, the
majority relies on Entergy Corp. v. Riverkeeper,
Inc., 556 U.S. 208, 129 S.Ct. 1498, 173
L.Ed.2d 369 (2009), where the Court applied
the now-defunct Chevron doctrine. Maj. Op. at
1118-19. There, the Court held that the Clean
Water Act's mandate that the Environmental
Protection Agency set standards that reflected
“the best technology available for minimizing
adverse environmental impact” did not
“unambiguously preclude” the use of costbenefit analysis. Id. at 218–20, 129 S.Ct. 1498.
The majority reasons that the Court found the
term “minimize” to be ambiguous because it
“admits of degree.” Id. at 219, 129 S.Ct. 1498.
For two reasons, the majority is mistaken.
First, the Court in Entergy never determined
that the term minimize was ambiguous. To
the contrary, the Court—applying traditional
tools of interpretation—held that the word
“minimize” in the Clean Water Act
unambiguously precluded the respondents’
assertion that the term “best technology”
included only those technologies that
achieved “the greatest possible reduction in
environmental harm.” Id. at 219, 129 S.Ct.
1498. The Court considered the use of the
term minimize “elsewhere in the Clean Water
Act,” and concluded that, “[i]f respondents’
definition of the term ‘minimize’ is correct,”
other portions of the Clean Water Act would
be “superfluous.” Id. Of course, the Surplusage
Canon is one of the “ ‘traditional tools’
of construction” that we must apply before
finding a term genuinely ambiguous. See
Kisor, 588 U.S. at 575, 139 S.Ct. 2400
(quoting Chevron, 467 U.S. at 843 n.9,
104 S.Ct. 2778); see also Scalia & Garner,
Reading Law 174 (explaining that, under the
Surplusage Canon, a word should not be
given an interpretation that causes another
provision “to have no consequence”). Thus,
and with respect, the premise underlying the
majority's understanding of ambiguity rests on
a misreading of Entergy.
Second, in the wake of Loper Bright, the
Chevron analysis in Entergy is no longer
valid. See Loper Bright, 144 S. Ct. at 2273
(“Chevron is overruled.”). To be sure, the Court
in Loper Bright did not “call into question prior
cases that relied on the Chevron framework.”
Id. But the Court was clear: this limitation
applied only to prior holdings that “specific
agency actions are lawful,” pursuant to the
doctrine of “statutory stare decisis.” Id. (first
emphasis added). The Court acknowledged its
“change in interpretive methodology” meant
that these precedents were “wrongly decided,”
but explained that mere error is “not enough
to justify overruling a statutory precedent.”
Id. (quoting *1126 Halliburton Co. v. Erica
P. John Fund, Inc., 573 U.S. 258, 266, 134
S.Ct. 2398, 189 L.Ed.2d 339 (2014)). For
future cases, however, the Court stated: “Courts
must exercise their independent judgment in
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deciding whether an agency has acted within its
statutory authority, as the APA requires.” Id.;
see also id. at 2271 (“[T]he basic nature and
meaning of a statute does not change when an
agency happens to be involved.... The statute
still has a best meaning, necessarily discernible
by a court deploying its full interpretive
toolkit.”). The majority's understanding of
ambiguity, then, depends exclusively on a case
with no precedential value.
In sum, the majority is incorrect that a term
is ambiguous under Kisor merely because it
is vague or “impenetrable on first read.” See
Kisor, 588 U.S. at 575, 139 S.Ct. 2400. Except
for those cases in which the words used are
“genuinely susceptible to multiple reasonable
meanings,” it remains our duty to apply such
vague and indefinite regulations to the facts
before us, as we do all the time. See id. at
581, 139 S.Ct. 2400. And here, the term “large
capacity magazine” in § 2K2.1 has only one
plausible meaning. Respectfully, the majority's
choice to disregard our interpretive duties and
assign them to the Sentencing Commission
expands Kisor far beyond its intended scope.
B.
The majority's expansion of Kisor deference is
particularly troubling considering the Supreme
Court's recent decision in Loper Bright.
Although I acknowledge that Loper Bright
did not expressly overrule Kisor, the majority
is mistaken to brush Loper Bright aside and
treat it as irrelevant to the interpretation of
regulatory language. Maj. Op. at 1118 n.2.
The Court in Loper Bright made clear that
courts cannot merely “throw up their hands,”
as the majority does today, when a term is
difficult to apply. See Loper Bright, 144 S. Ct. at
2266. Indeed, Loper Bright questioned whether
ambiguity can even serve as a valid benchmark
when it comes to a court's interpretive role. As
the Court put it:
Ambiguity is a term that
may have different meanings
for different judges. One
judge might see ambiguity
everywhere; another might
never encounter it. A rule
of law that is so wholly
in the eye of the beholder
invites different results in
like cases and is therefore
arbitrary in practice. Such
an
impressionistic
and
malleable concept cannot
stand as an every-day test
for allocating interpretive
authority between courts and
agencies.
Id. at 2270–71 (citations and internal quotations
omitted).
The Court in Loper Bright, moreover, reasoned
that “statutes, no matter how impenetrable, do
—in fact, must—have a single, best meaning.”
Id. at 2266. It also explained that it “makes no
sense to speak of a ‘permissible’ interpretation
that is not the one the court, after applying
all relevant interpretive tools, concludes is
best,” because “if it is not the best, it
is not permissible.” Id. Of course, those
“interpretive tools” are the same tools the
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Court told us to exhaust in in Kisor before
finding a regulation ambiguous. Compare id.
(noting the “very point of the traditional
tools of statutory construction—the tools
courts use every day—is to resolve statutory
ambiguities”), with Kisor, 588 U.S. at 575,
139 S.Ct. 2400 (explaining a court “must
exhaust all the traditional tools of construction”
“before concluding that a rule is genuinely
ambiguous” (internal quotations omitted)).
Loper Bright, then, reiterated the searching
inquiry that we must undertake before deferring
to an agency under Kisor.
After the Court's landmark decision in Loper
Bright, we should hesitate to expand *1127
Kisor deference beyond those cases in which
“the meaning of the words used is in doubt.”
See Seminole Rock, 325 U.S. at 414, 65 S.Ct.
1215; Kisor, 588 U.S. at 575, 581, 139 S.Ct.
2400. In all other cases, such as this one, the
regulation “just means what it means—and the
court must give it effect, as the court would any
law.” Kisor, 588 U.S. at 575, 139 S.Ct. 2400.
III.
Because § 2K2.1 is unambiguous, I
would independently interpret the term
“semiautomatic firearm that is capable of
accepting a large capacity magazine,” and
determine whether the Glock 17 that Trumbull
possessed at the time of his offense qualifies.
See U.S.S.G.§ 2K2.1(a)(4)(B). This analysis
requires the use of the “ordinary tools of
statutory interpretation,” Martinez, 870 F.3d at
1166, which “begin[s] and end[s] with the text
and structure of the Guidelines,” United States
v. Joey, 845 F.3d 1291, 1297 n.8 (9th Cir. 2017)
(internal quotations omitted). We may also
consider “the context of the[ ] words” in light of
the backdrop at the time the rule was enacted.
See United States v. Hansen, 599 U.S. 762,
775, 143 S.Ct. 1932, 216 L.Ed.2d 692 (2023);
Scalia & Garner, Reading Law 167 (“Context
is a primary determinant of meaning.”). Here,
the analysis of the text and structure, along with
the context in which § 2K2.1 was promulgated,
compels one conclusion: Trumbull's Glock 17,
which had the capacity to accept 17 rounds,
unambiguously qualifies as a “semiautomatic
firearm that is capable of accepting a large
capacity magazine.” See U.S.S.G. § 2K2.1(a)
(4)(B).
First, the current version of § 2K2.1 “was
expressly modeled on its ... predecessor” and,
therefore, brought “the old soil with it.” See
Hall v. Hall, 584 U.S. 59, 72–73, 138 S.Ct.
1118, 200 L.Ed.2d 399 (2018) (quoting Felix
Frankfurter, Some Reflections on the Reading of
Statutes, 47 Colum. L. Rev. 527, 537 (1947)).
As I have explained, § 2K2.1 previously
cross-referenced the Violent Crime Control
Law Enforcement Act of 1994. That Act had
prohibited the possession of a “large capacity
ammunition feeding device,” defined as a
“magazine” that has a “capacity of ... more than
10 rounds of ammunition.” 18 U.S.C. § 921(a)
(31). Prior to the 2006 amendments, moreover,
U.S.S.G. § 5K2.17 provided for a sentencing
enhancement when the offender possessed a
“high-capacity semiautomatic firearm,” which
was similarly defined as a firearm that has
a “magazine capacity of more than ten
cartridges.”
After the Act expired in 2004, the Commission
amended § 2K2.1 and § 5K2.17 because
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Congress had allowed the cross-referenced Act
to expire. In its “Reason for Amendment,” the
Commission explained that it had “received
information regarding inconsistent application
as to whether the enhanced base offense
levels apply ... in light of the ban's
expiration.” U.S.S.G. § 2K2.1, Amend. 691.
The Commission therefore opted to “replace[ ]
the reference [to the Act] with the term,
‘a semiautomatic firearm that is capable of
accepting a large capacity magazine.’ ” Id.
When this context is considered, the 2006
amendment—which merely replaced the crossreferences to the Act and did not include any
new definitions—did not make any substantive
changes. See Gordillo, 920 F.3d at 1298
(explaining that the “2006 amendments [to
§ 2K2.1] were intended to clarify that the
enhanced base offense levels continued to
apply”); cf. Hansen, 599 U.S. at 775–78, 143
S.Ct. 1932 (considering context and concluding
that, when Congress removed words in a
statute but left intact similar words, the
change was “best understood as a continuation
of the past, not a sharp break from it”).
Instead, the term “large capacity magazine” is
“obviously *1128 transplanted from another
legal source”—the Act and the prior version
of § 5K2.17—and, therefore, “brings the old
soil with it.” See Taggart v. Lorenzen, 587
U.S. 554, 560, 139 S.Ct. 1795, 204 L.Ed.2d
129 (2019) (quoting Hall, 584 U.S. at 73,
138 S.Ct. 1118); Scalia & Garner, Reading
Law 322 (explaining that if a term has been
given a “uniform interpretation by ... the
responsible agency, a later version of that
act perpetuating the wording is presumed
to carry forward that interpretation”); id. at
323 (“[W]hen a statute uses the very same
terminology as an earlier statute—especially
in the very same field ...—it is reasonable to
believe that the terminology bears a consistent
meaning”); Erlenbaugh v. United States, 409
U.S. 239, 244, 93 S.Ct. 477, 34 L.Ed.2d
446 (1972) (“[W]henever Congress passes a
new statute, it acts aware of all previous
statutes on the same subject.”). Under this
“longstanding interpretive principle,” the preexisting definition was merely incorporated
into § 2K2.1. See Taggart, 587 U.S.
at 560, 139 S.Ct. 1795. And with that
understanding, Trumbull's Glock 17 qualifies
as a “semiautomatic firearm that is capable
of accepting a large capacity magazine,” as
that term was understood when § 2K2.1 was
amended, because it could accept more than 10
rounds of ammunition. 2 See 18 U.S.C. § 922(a)
(31) (repealed); U.S.S.G. § 5K2.17 (amended).
Second, there is overwhelming evidence that
the common understanding of the term “large
capacity magazine” encompasses magazines
that can accept 17 rounds of ammunition.
As the majority recognizes, at least 12
states restrict the possession of large capacity
magazines. Maj. Op. at 1119. Eight of those
states define the term as a magazine that
has the capacity to accept more than 10
rounds of ammunition. See Cal. Penal Code §
16740; Conn. Gen. Stat. Ann. § 53-202w(a)
(1); Haw. Rev. Stat. Ann. § 134-8; Mass. Gen.
Laws Ann. ch. 140, § 121; N.J. Stat. Ann. §
2C:39-1; N.Y. Penal Law § 265.00; 11 R.I. Gen.
Laws § 11-47.1-3; Wash. Rev. Code Ann. §
9.41.010(25). And 3 define the term to include
those handgun magazines that can accept more
than 15 rounds of ammunition. See Colo. Rev.
Stat. § 18-12-301; 720 Ill. Comp. Stat. Ann.
5/24-1.10; Vt. Stat. Ann. tit. 13, § 4021. Under
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2024 Daily Journal D.A.R. 8042
any of these definitions, Trumbull's 17-capacity
magazine falls within the scope of the term
“large capacity magazine” as that term has been
long understood.
Considering the regulatory context, a
semiautomatic firearm that can accept 17
rounds of ammunition, such as the Glock
17 that Trumbull possessed at the time
of his offense, unambiguously constitutes a
“semiautomatic firearm that is capable of
accepting a large capacity magazine” for
purposes of the Sentencing Guidelines. See
U.S.S.G. § 2K2.1(a)(4)(B). Accordingly, the
district court did not err when it enhanced
Trumbull's base offense level pursuant to §
2K2.1(a)(4)(B).
in Application Note 2 because the language
of § 2K2.1 is not “genuinely ambiguous.”
See Kisor, 588 U.S. at 573–75, 139 S.Ct.
2400. Nonetheless, the Glock 17 that Trumbull
possessed at the time of his offense falls
unambiguously within the meaning of the term
“semiautomatic firearm *1129 that is capable
of accepting a large capacity magazine” as
that term was understood when § 2K2.1 was
promulgated. U.S.S.G. § 2K2.1(a)(4)(B). The
district court, therefore, properly enhanced
Trumbull's base offense level for sentencing
purposes pursuant to § 2K2.1(a)(4)(B).
For the foregoing reasons, I concur only in the
judgment.
All Citations
***
In sum, the majority is mistaken to defer
to the Sentencing Commission's commentary
114 F.4th 1114, 2024 Daily Journal D.A.R.
8042
Footnotes
1
Specifically, Trumbull had two felony convictions for burglary, a felony conviction
for attempted burglary, and a felony conviction for issuing a bad check. He also
had misdemeanor convictions for theft, criminal trespass to a vehicle, conspiracy
to commit theft, driving under the influence, and criminal possession of drug
paraphernalia.
In the time between his arrest and indictment in this case, Trumbull was arrested
and charged in Montana state court with criminal possession of dangerous drugs (a
felony), criminal possession of drug paraphernalia (a misdemeanor), and probation
violations.
2
In Loper Bright Enterprises v. Raimondo, ––– U.S. ––––, 144 S. Ct. 2244, 219
L.Ed.2d 832 (2024), the Supreme Court overruled Chevron, U.S.A., Inc. v. Natural
Resources Defense Council, Inc., 467 U.S. 837, 104 S.Ct. 2778, 81 L.Ed.2d 694
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2024 Daily Journal D.A.R. 8042
(1984), which “required courts to defer to ‘permissible’ agency interpretations of the
statutes those agencies administer.” Loper Bright, 144 S. Ct. at 2254. The Supreme
Court did not call Kisor into question in Loper Bright (and in fact cited it, see id. at
2261), and as the concurrence acknowledges did not overrule it, so we continue
to apply it.
3
Cal. Penal Code § 32310, held unconstitutional by Duncan v. Bonta, 695 F. Supp.
3d 1206, 1213 (S.D. Cal. 2023); Colo. Rev. Stat. § 18-12-302; Conn. Gen. Stat. §
53-202x; Del. Code Ann. tit. 11, § 1469; Haw. Rev. Stat. § 134-8; 720 Ill. Comp.
Stat. 5/24-1.10; Mass. Gen. Laws ch. 140, § 131M; N.J. Stat. Ann. § 2C:39-3, held
preempted on other grounds in Fed. Law Enf't Officers Ass'n v. Att'y Gen. N.J., 93
F.4th 122, 124 (3d. Cir. 2024); N.Y. Penal Law § 265.37 (originally setting the floor at
seven rounds but now setting it at ten rounds per N.Y. Penal Law § 265.00); 11 R.I.
Gen. Laws § 11-47.1-3; Vt. Stat. Ann. tit. 13, § 4021; Wash. Rev. Code § 9.41.370.
4
Colo. Rev. Stat. § 18-12-301; 720 Ill. Comp. Stat. 5/24-1.10; Vt. Stat. Ann. tit. 13,
§ 4021.
5
Cal. Penal Code § 16740; Conn. Gen. Stat. § 53-202w(a)(1); Haw. Rev. Stat. §
134-8; Mass. Gen. Laws ch. 140, § 121; N.J. Stat. Ann. § 2C:39-1; N.Y. Penal Law
§ 265.00; 11 R.I. Gen. Laws § 11-47.1-2; Wash. Rev. Code § 9.41.010.
6
Del. Code Ann. tit. 11, § 1468 (more than seventeen rounds).
7
Indeed, while “[c]ourts and commentators tend to justify treating commentary as less
authoritative than the guidelines in part on the ground that ‘[u]nlike the Guidelines
themselves, ... commentary to the Guidelines never passes through the gauntlets
of congressional review or notice and comment[,]’ ... their premise is mistaken.”
United States v. Dupree, 57 F.4th 1269, 1280 (11th Cir. 2023) (en banc) (Pryor, C.J.,
concurring) (second and third alterations in original) (citation omitted). “Unlike most
agency interpretive rules, Guidelines commentary ordinarily goes through the same
notice-and-comment and congressional review procedures as substantive guideline
revisions,” so “the difference between the Guidelines and the commentary ordinarily
boils down to labels and formatting.” Id. at 1280–81 (Pryor, C.J., concurring).
See also U.S. Sent'g Comm'n, Rules of Practice & Procedure, § 4.3 (“[T]he
Commission will endeavor to provide, to the extent practicable, comparable
opportunities [to publication in the Federal Register and public hearing procedure,
as required by 28 U.S.C. § 994(x)], for public input on proposed ... commentary ....”);
id., § 4.1 (“[T]o the extent practicable, the Commission shall endeavor to include
amendments to ... commentary in any submission of guideline amendments to
Congress and put them into effect on the same November 1 date as any guideline
amendments issued in the same year.”); John S. Acton, The Future of Judicial
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16
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2024 Daily Journal D.A.R. 8042
Deference to the Commentary of the United States Sentencing Guidelines, 45
Harv. J.L. & Pub. Pol'y 349, 359 (2022) (“Lower courts have largely overlooked this
change in practice and often mischaracterize the procedure that amendments to the
commentary receive ....”).
1
In Robinson, for example, the Supreme Court reasoned that the statutory term
“employees” could have two plausible meanings: either (1) current employees only,
or (2) both former and current employees. Robinson, 519 U.S. at 341–45, 117 S.Ct.
843.
2
Although Application Note 2's definition of “large capacity magazine” is narrower
than the prior definitions—as it applies only to firearms that can accept more than
15 rounds of ammunition—we have held that “Guidelines commentary need not be
followed when it establishes a ‘narrowing’ construction not ‘found in the Guideline
text.’ ” United States v. Kirilyuk, 29 F.4th 1128, 1137 (9th Cir. 2022) (quoting United
States v. Lambert, 498 F.3d 963, 971 (9th Cir. 2007)).
End of Document
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17
APPENDIX B
United States v. Trumbull, CA 23-912, Order Denying Petition for Rehearing or
Rehearing En Banc, (Dkt. 41.1) (9th Cir., December 17, 2024)
Case: 23-912, 12/17/2024, DktEntry: 41.1, Page 1 of 1
FILED
UNITED STATES COURT OF APPEALS
DEC 17 2024
FOR THE NINTH CIRCUIT
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
UNITED STATES OF AMERICA,
Plaintiff - Appellee,
v.
DEREK STEVEN TRUMBULL,
No. 23-912
D.C. No.
9:22-cr-00052-DLC-1
District of Montana,
Missoula
ORDER
Defendant - Appellant.
Before: W. FLETCHER, BEA, and OWENS, Circuit Judges.
The panel has voted to deny the petition for panel rehearing. Judge Owens
voted to deny the petition for rehearing en banc, and Judges Fletcher and Bea so
recommend.
The full court has been advised of the suggestion for rehearing en banc, and
no judge has requested a vote on whether to rehear the matter en banc. Fed. R.
App. P. 40.
The petition for panel rehearing and the petition for rehearing en banc are
therefore DENIED.
APPENDIX C
U.S.S.G. § 2K2.1 (2023)
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APPENDIX D
Loper Bright Enterprises v. Raimondo, 603 U.S. 369 (2024)
Loper Bright Enterprises v. Raimondo, 603 U.S. 369 (2024)
144 S.Ct. 2244, 219 L.Ed.2d 832, Fed. Sec. L. Rep. P 101,887...
144 S.Ct. 2244
Supreme Court of the United States.
LOPER BRIGHT
ENTERPRISES, et al., Petitioners
v.
Gina RAIMONDO,
Secretary of Commerce, et al.
Relentless, Inc., et al., Petitioners
v.
Department of Commerce, et al.
No. 22-451, No. 22-1219
|
Argued January 17, 2024
|
Decided June 28, 2024
Synopsis
Background: In first case, herring fishing
companies operating in the Atlantic
herring fishery brought action against
Secretary of Commerce and National
Marine Fisheries Service (NMFS), alleging
that Magnuson-Stevens Fishery Conservation
and Management Act (MSA) did not
authorize Service, in implementing statutory
amendment establishing industry-funded
monitoring programs for fishery management,
to promulgate final rule requiring Atlantic
herring fishery to fund costs for on-board
observers required by fishery management
plan. The United States District Court for the
District of Columbia, Emmet G. Sullivan, J.,
544 F.Supp.3d 82, granted summary judgment
to Secretary and Service. Companies appealed.
The United States Court of Appeals for the
District of Columbia Circuit, Rogers, Circuit
Judge, 45 F.4th 359, affirmed. Certiorari was
granted. In second case, owners of fishing
vessels operating in the Atlantic herring fishery
brought action asserting similar claims. The
United States District Court for the District
of Rhode Island, William E. Smith, J., 561
F.Supp.3d 226, entered summary judgment
in government's favor. Owners appealed. The
United States Court of Appeals for the First
Circuit, Kayatta, Circuit Judge, 62 F.4th 621,
affirmed. Certiorari was granted in part.
The Supreme Court, Chief Justice Roberts,
held that courts need not, and under the
Administrative Procedure Act (APA) may not,
defer to an agency's interpretation of the
law simply because a statute is ambiguous;
overruling Chevron, U.S.A., Inc. v. Natural
Resources Defense Council, Inc., 467 U.S. 837,
104 S.Ct. 2778, 81 L.Ed.2d 694.
Vacated and remanded.
Justices Thomas, Alito, Gorsuch, Kavanaugh,
and Barrett joined.
Justice Thomas filed a concurring opinion.
Justice Gorsuch filed a concurring opinion.
Justice Kagan filed a dissenting opinion, in
which Justice Sotomayor joined and Justice
Jackson joined as applied to second case.
Justice Jackson took no part in the
consideration or decision of the first case.
Procedural Posture(s): Petition for Writ of
Certiorari; On Appeal; Motion for Summary
Judgment.
© 2025 Thomson Reuters. No claim to original U.S. Government Works.
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**2247 Syllabus *
*369 The Court granted certiorari in these
cases limited to the question whether Chevron
U. S. A. Inc. v. Natural Resources Defense
Council, Inc., 467 U.S. 837, 104 S.Ct.
2778, 81 L.Ed.2d 694, should be overruled
or clarified. Under the Chevron doctrine,
courts have sometimes been required to defer
to “permissible” agency interpretations of
the statutes those agencies administer—even
when a reviewing court reads the statute
differently. Id., at 843, 104 S.Ct. 2778. In
each case below, the reviewing courts applied
Chevron’s framework to resolve in favor of the
Government challenges by petitioners to a rule
promulgated by the National Marine Fisheries
Service pursuant to the Magnuson-Stevens Act,
16 U.S.C. § 1801 et seq., which incorporates the
Administrative Procedure Act (APA), 5 U.S.C.
§ 551 et seq.
Held: The Administrative Procedure Act
requires courts to exercise their independent
judgment in deciding whether an agency has
acted within its statutory authority, and courts
may not defer to an agency interpretation of
the law simply because a statute is ambiguous;
Chevron is overruled. Pp. 2257 – 2273.
(a) Article III of the Constitution assigns to the
Federal Judiciary the responsibility and power
to adjudicate “Cases” and “Controversies”—
concrete disputes with consequences for the
parties involved. The Framers appreciated that
the laws judges would necessarily apply in
resolving those disputes would not always
be clear, but envisioned that the final
“interpretation of the laws” would be “the
proper and peculiar province of the courts.”
The Federalist No. 78, p. 525 (A. Hamilton).
As Chief Justice Marshall declared in the
foundational decision of Marbury v. Madison,
“[i]t is emphatically the province and duty of
the judicial department to say what the law
is.” 1 Cranch 137, 177, 2 L.Ed. 60. In the
decades following Marbury, when the meaning
of a statute was at issue, the judicial role was
to “interpret the act of Congress, in order to
ascertain the rights of the parties.” Decatur v.
Paulding, 14 Pet. 497, 515, 10 L.Ed. 559.
*370 The Court recognized from the
outset, though, that exercising independent
judgment often included according due
respect to Executive Branch interpretations
of federal statutes. Such respect was
thought especially warranted when an
Executive Branch interpretation was issued
roughly contemporaneously with enactment
of the statute and remained consistent over
time. The Court also gave “the most
respectful consideration” to Executive Branch
interpretations simply because “[t]he officers
concerned [were] usually able men, and
masters of the subject,” who may well have
drafted the laws at issue. United States
v. Moore, 95 U.S. 760, 763, 24 L.Ed.
588. “Respect,” though, was just that. The
views of the Executive Branch could inform
the judgment of the Judiciary, but did not
supersede it. “[I]n cases where [a court's] own
judgment ... differ[ed] from that of other high
functionaries,” the court was “not at liberty
to surrender, or to waive it.” United States v.
Dickson, 15 Pet. 141, 16, 10 L.Ed. 689.
During the “rapid expansion of the
administrative process” that took place during
© 2025 Thomson Reuters. No claim to original U.S. Government Works.
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the New Deal era, United States v. Morton
Salt Co., 338 U.S. 632, 644, 70 S.Ct. 357,
94 L.Ed. 401, the Court often treated agency
determinations of fact as binding on the
courts, provided that there was “evidence
to support the findings,” St. Joseph Stock
Yards Co. v. United States, 298 U.S. 38,
51, 56 S.Ct. 720, 80 L.Ed. 1033. But the
Court did not extend similar deference to
agency resolutions of questions of law. “The
interpretation of the meaning of statutes, as
applied to justiciable controversies,” remained
“exclusively a judicial function.” United States
v. American Trucking Assns., Inc., 310 U.S.
534, 544, 60 S.Ct. 1059, 84 L.Ed. 1345.
The Court also continued to note that the
informed judgment of the Executive Branch
could be entitled to “great weight.” Id.,
at 549, 60 S.Ct. 1059. “The weight of
such a judgment in a particular case,” the
Court observed, would “depend upon 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, if
lacking power to control.” Skidmore v. Swift &
Co., 323 U.S. 134, 140, 65 S.Ct. 161, 89 L.Ed.
124.
Occasionally during this period, the Court
applied deferential review after concluding that
a particular statute empowered an agency to
decide how a broad statutory term applied
to specific facts found by the agency. See
Gray v. Powell, 314 U.S. 402, 62 S.Ct. 326,
86 L.Ed. 301; NLRB v. Hearst Publications,
Inc., 322 U.S. 111, 64 S.Ct. 851, 88 L.Ed.
1170. But such deferential review, which the
Court was far from consistent in applying,
was cabined to factbound determinations. And
the Court did not purport to refashion the
longstanding judicial approach to questions of
law. It instead proclaimed that “[u]ndoubtedly
questions of statutory interpretation ... are for
the courts to resolve, giving appropriate weight
to the judgment of those whose special duty
is to administer the questioned statute.” Id.,
at 130–131, 64 S.Ct. 851. *371 Nothing in
the New Deal era or before it thus resembled
the deference rule the Court would begin
applying decades later to all varieties of agency
interpretations of statutes under Chevron. Pp.
2257 – 2261.
(b) Congress in 1946 enacted the APA “as a
check upon administrators whose zeal might
otherwise have carried them to excesses
not contemplated in legislation creating their
offices.” Morton Salt, 338 U.S. at 644, 70
S.Ct. 357. The APA prescribes procedures
for agency action and delineates the basic
contours of judicial review of such action. And
it codifies for agency cases the unremarkable,
yet elemental proposition reflected by judicial
practice dating back to Marbury: that courts
decide legal questions by applying their own
judgment. As relevant here, the APA specifies
that courts, not agencies, will decide “all
relevant questions of law” arising on review
of agency action, 5 U.S.C. § 706 (emphasis
added)—even those involving ambiguous
laws. It prescribes no deferential standard
for courts to employ in answering those
legal questions, despite mandating deferential
judicial review of agency policymaking and
factfinding. See §§ 706(2)(A), (E). And by
directing courts to “interpret constitutional and
statutory provisions” without differentiating
between the two, § 706, it makes clear that
agency interpretations of statutes—like agency
© 2025 Thomson Reuters. No claim to original U.S. Government Works.
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144 S.Ct. 2244, 219 L.Ed.2d 832, Fed. Sec. L. Rep. P 101,887...
(c) The deference that Chevron requires of
courts reviewing agency action cannot be
squared with the APA. Pp. 2264 – 2270.
case was whether an Environmental Protection
Agency *372 (EPA) regulation was consistent
with the term “stationary source” as used in
the Clean Air Act. 467 U.S. at 840, 104
S.Ct. 2778. To answer that question, the Court
articulated and employed a now familiar twostep approach broadly applicable to review of
agency action. The first step was to discern
“whether Congress ha[d] directly spoken to
the precise question at issue.” Id., at 842, 104
S.Ct. 2778. The Court explained that “[i]f the
intent of Congress is clear, that is the end of
the matter,” ibid., and courts were therefore
to “reject administrative constructions which
are contrary to clear congressional intent,”
id., at 843, n. 9, 104 S.Ct. 2778. But in
a case in which “the statute [was] silent or
ambiguous with respect to the specific issue”
at hand, a reviewing court could not “simply
impose its own construction on the statute,
as would be necessary in the absence of
an administrative interpretation.” Id., at 843,
104 S.Ct. 2778 (footnote omitted). Instead, at
Chevron’s second step, a court had to defer
to the agency if it had offered “a permissible
construction of the statute,” ibid., even if not
“the reading the court would have reached if
the question initially had arisen in a judicial
proceeding,” ibid., n. 11. Employing this new
test, the Court concluded that Congress had
not addressed the question at issue with the
necessary “level of specificity” and that EPA's
interpretation was “entitled to deference.” Id.,
at 865, 104 S.Ct. 2778.
(1) Chevron, decided in 1984 by a bare
quorum of six Justices, triggered a marked
departure from the traditional judicial approach
of independently examining each statute to
determine its meaning. The question in the
Although the Court did not at first treat Chevron
as the watershed decision it was fated to
become, the Court and the courts of appeals
were soon routinely invoking its framework
as the governing standard in cases involving
interpretations of the Constitution—are not
entitled to deference. The APA's history and the
contemporaneous views of various respected
commentators underscore the plain meaning of
its text.
Courts exercising independent judgment
in determining the meaning of statutory
provisions, consistent with the APA, may
—as they have from the start—seek aid
from the interpretations of those responsible
for implementing particular statutes. See
Skidmore, 323 U.S. at 140, 65 S.Ct. 161. And
when the best reading of a statute is that it
delegates discretionary authority to an agency,
the role of the reviewing court under the APA
is, as always, to independently interpret the
statute and effectuate the will of Congress
subject to constitutional limits. The court
fulfills that role by recognizing constitutional
delegations, fixing the boundaries of the
delegated authority, and ensuring the agency
has engaged in “ ‘reasoned decisionmaking’ ”
within those boundaries. Michigan v. EPA, 576
U.S. 743, 750, 135 S.Ct. 2699, 192 L.Ed.2d 674
(quoting Allentown Mack Sales & Service, Inc.
v. NLRB, 522 U.S. 359, 374, 118 S.Ct. 818, 139
L.Ed.2d 797). By doing so, a court upholds the
traditional conception of the judicial function
that the APA adopts. Pp. 2261 – 2264.
© 2025 Thomson Reuters. No claim to original U.S. Government Works.
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statutory questions of agency authority. The
Court eventually decided that Chevron rested
on “a presumption that Congress, when
it left ambiguity in a statute meant for
implementation by an agency, understood that
the ambiguity would be resolved, first and
foremost, by the agency, and desired the agency
(rather than the courts) to possess whatever
degree of discretion the ambiguity allows.”
Smiley v. Citibank (South Dakota), N. A.,
517 U.S. 735, 740–741, 116 S.Ct. 1730, 135
L.Ed.2d 25. Pp. 2264 – 2265.
(2) Neither Chevron nor any subsequent
decision of the Court attempted to reconcile
its framework with the APA. Chevron defies
the command of the APA that “the reviewing
court”—not the agency whose action it reviews
—is to “decide all relevant questions of
law” and “interpret ... statutory provisions.”
§ 706 (emphasis added). It requires a court
to ignore, not follow, “the reading the court
would have reached” had it exercised its
independent judgment as required by the
APA. Chevron, 467 U.S. at 843, n. 11, 104
S.Ct. 2778. Chevron insists on more than
the “respect” historically given to Executive
Branch interpretations; it demands that courts
mechanically afford binding deference to
agency interpretations, including those that
have been inconsistent over time, see id., at
863, 104 S.Ct. 2778, and even when a preexisting judicial precedent holds that *373
an ambiguous statute means something else,
National Cable & Telecommunications Assn. v.
Brand X Internet Services, 545 U.S. 967, 982,
125 S.Ct. 2688, 162 L.Ed.2d 820. That regime
is the antithesis of the time honored approach
the APA prescribes.
Chevron cannot be reconciled with the
APA by presuming that statutory ambiguities
are implicit delegations to agencies. That
presumption does not approximate reality.
A statutory ambiguity does not necessarily
reflect a congressional intent that an
agency, as opposed to a court, resolve
the resulting interpretive question. Many
or perhaps most statutory ambiguities may
be unintentional. And when courts confront
statutory ambiguities in cases that do not
involve agency interpretations or delegations
of authority, they are not somehow relieved of
their obligation to independently interpret the
statutes. Instead of declaring a particular party's
reading “permissible” in such a case, courts use
every tool at their disposal to determine the best
reading of the statute and resolve the ambiguity.
But in an agency case as in any other, there
is a best reading all the same—“the reading
the court would have reached” if no agency
were involved. Chevron, 467 U.S. at 843, n. 11,
104 S.Ct. 2778. It therefore makes no sense to
speak of a “permissible” interpretation that is
not the one the court, after applying all relevant
interpretive tools, concludes is best.
Perhaps most fundamentally, Chevron’s
presumption is misguided because agencies
have no special competence in resolving
statutory ambiguities. Courts do. The Framers
anticipated that courts would often confront
statutory ambiguities and expected that courts
would resolve them by exercising independent
legal judgment. Chevron gravely erred in
concluding that the inquiry is fundamentally
different just because an administrative
interpretation is in play. The very point of the
traditional tools of statutory construction is to
resolve statutory ambiguities. That is no less
© 2025 Thomson Reuters. No claim to original U.S. Government Works.
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144 S.Ct. 2244, 219 L.Ed.2d 832, Fed. Sec. L. Rep. P 101,887...
true when the ambiguity is about the scope of
an agency's own power—perhaps the occasion
on which abdication in favor of the agency is
least appropriate. Pp. 2265 – 2266.
(3) The Government responds that Congress
must generally intend for agencies to resolve
statutory ambiguities because agencies have
subject matter expertise regarding the statutes
they administer; because deferring to agencies
purportedly promotes the uniform construction
of federal law; and because resolving statutory
ambiguities can involve policymaking best
left to political actors, rather than courts.
See Brief for Respondents in No. 22–1219,
pp. 16–19. But none of these considerations
justifies Chevron’s sweeping presumption of
congressional intent.
As the Court recently noted, interpretive
issues arising in connection with a regulatory
scheme “may fall more naturally into a judge's
bailiwick” *374 than an agency's. Kisor v.
Wilkie, 588 U.S. 558, 578, 139 S.Ct. 2400,
204 L.Ed.2d 841. Under Chevron’s broad
rule of deference, though, ambiguities of all
stripes trigger deference, even in cases having
little to do with an agency's technical subject
matter expertise. And even when an ambiguity
happens to implicate a technical matter, it does
not follow that Congress has taken the power
to authoritatively interpret the statute from the
courts and given it to the agency. Congress
expects courts to handle technical statutory
questions, and courts did so without issue in
agency cases before Chevron. After all, in an
agency case in particular, the reviewing court
will go about its task with the agency's “body
of experience and informed judgment,” among
other information, at its disposal. Skidmore,
323 U.S. at 140, 65 S.Ct. 161. An agency's
interpretation of a statute “cannot bind a court,”
but may be especially informative “to the extent
it rests on factual premises within [the agency's]
expertise.” Bureau of Alcohol, Tobacco and
Firearms v. FLRA, 464 U.S. 89, 98, n. 8, 104
S.Ct. 439, 78 L.Ed.2d 195. Delegating ultimate
interpretive authority to agencies is simply
not necessary to ensure that the resolution
of statutory ambiguities is well informed by
subject matter expertise.
Nor does a desire for the uniform construction
of federal law justify Chevron. It is unclear how
much the Chevron doctrine as a whole actually
promotes such uniformity, and in any event,
we see no reason to presume that Congress
prefers uniformity for uniformity's sake over
the correct interpretation of the laws it enacts.
Finally, the view that interpretation of
ambiguous statutory provisions amounts to
policymaking suited for political actors rather
than courts is especially mistaken because
it rests on a profound misconception of
the judicial role. Resolution of statutory
ambiguities involves legal interpretation,
and that task does not suddenly become
policymaking just because a court has an
“agency to fall back on.” Kisor, 588 U.S. at
575, 139 S.Ct. 2400. Courts interpret statutes,
no matter the context, based on the traditional
tools of statutory construction, not individual
policy preferences. To stay out of discretionary
policymaking left to the political branches,
judges need only fulfill their obligations under
the APA to independently identify and respect
such delegations of authority, police the outer
statutory boundaries of those delegations, and
ensure that agencies exercise their discretion
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consistent with the APA. By forcing courts to
instead pretend that ambiguities are necessarily
delegations, Chevron prevents judges from
judging. Pp. 2266 – 2268.
(4) Because Chevron’s justifying presumption
is, as Members of the Court have often
recognized, a fiction, the Court has spent
the better part of four decades imposing one
limitation on Chevron after another. Confronted
with the byzantine set of preconditions and
exceptions that has resulted, some courts
have simply bypassed Chevron or failed to
*375 heed its various steps and nuances.
The Court, for its part, has not deferred to
an agency interpretation under Chevron since
2016. But because Chevron remains on the
books, litigants must continue to wrestle with
it, and lower courts—bound by even the
Court's crumbling precedents—understandably
continue to apply it. At best, Chevron has been a
distraction from the question that matters: Does
the statute authorize the challenged agency
action? And at worst, it has required courts to
violate the APA by yielding to an agency the
express responsibility, vested in “the reviewing
court,” to “decide all relevant questions of law”
and “interpret ... statutory provisions.” § 706
(emphasis added). Pp. 2268 – 2270.
(d) Stare decisis, the doctrine governing
judicial adherence to precedent, does not
require the Court to persist in the Chevron
project. The stare decisis considerations most
relevant here—“the quality of [the precedent's]
reasoning, the workability of the rule it
established, ... and reliance on the decision,”
Knick v. Township of Scott, 588 U.S. 180,
203, 139 S.Ct. 2162, 204 L.Ed.2d 558
(quoting Janus v. State, County, and Municipal
Employees, 585 U.S. 878, 917, 138 S.Ct. 2448,
201 L.Ed.2d 924)—all weigh in favor of letting
Chevron go.
Chevron has proved to be fundamentally
misguided. It reshaped judicial review of
agency action without grappling with the APA,
the statute that lays out how such review works.
And its flaws were apparent from the start,
prompting the Court to revise its foundations
and continually limit its application.
Experience has also shown that Chevron
is unworkable. The defining feature of its
framework is the identification of statutory
ambiguity, but the concept of ambiguity has
always evaded meaningful definition. Such an
impressionistic and malleable concept “cannot
stand as an every-day test for allocating”
interpretive authority between courts and
agencies. Swift & Co. v. Wickham, 382 U.S.
111, 125, 86 S.Ct. 258, 15 L.Ed.2d 194.
The Court has also been forced to clarify
the doctrine again and again, only adding
to Chevron’s unworkability, and the doctrine
continues to spawn difficult threshold questions
that promise to further complicate the inquiry
should Chevron be retained. And its continuing
import is far from clear, as courts have often
declined to engage with the doctrine, saying it
makes no difference.
Nor has Chevron fostered meaningful reliance.
Given the Court's constant tinkering with
and eventual turn away from Chevron, it is
hard to see how anyone could reasonably
expect a court to rely on Chevron in any
particular case or expect it to produce
readily foreseeable outcomes. And rather
than safeguarding reliance interests, Chevron
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affirmatively destroys them by allowing
agencies to change course even when Congress
has given them no power to do so.
*376 The only way to “ensure that the
law will not merely change erratically, but
will develop in a principled and intelligible
fashion,” Vasquez v. Hillery, 474 U.S. 254,
265, 106 S.Ct. 617, 88 L.Ed.2d 598, is for the
Court to leave Chevron behind. By overruling
Chevron, though, the Court does not call into
question prior cases that relied on the Chevron
framework. The holdings of those cases that
specific agency actions are lawful—including
the Clean Air Act holding of Chevron itself—
are still subject to statutory stare decisis despite
the Court's change in interpretive methodology.
See CBOCS West, Inc. v. Humphries, 553 U.S.
442, 457, 128 S.Ct. 1951, 170 L.Ed.2d 864.
Mere reliance on Chevron cannot constitute a
“ ‘special justification’ ” for overruling such
a holding. Halliburton Co. v. Erica P. John
Fund, Inc., 573 U.S. 258, 266, 134 S.Ct. 2398,
189 L.Ed.2d 339 (quoting Dickerson v. United
States, 530 U.S. 428, 443, 120 S.Ct. 2326, 147
L.Ed.2d 405). Pp. 2270 – 2273.
No. 22–451, 45 F. 4th 359 & No. 22–1219, 62
F. 4th 621, vacated and remanded.
ROBERTS, C. J., delivered the opinion of
the Court, in which THOMAS, ALITO,
GORSUCH, KAVANAUGH, and BARRETT,
JJ., joined. THOMAS, J., and GORSUCH, J.,
filed concurring opinions. KAGAN, J., filed a
dissenting opinion, in which SOTOMAYOR,
J., joined, and in which JACKSON, J., joined as
it applies to No. 22–1219. JACKSON, J., took
no part in the consideration or decision of the
case in No. 22–451.
ON WRIT OF CERTIORARI TO THE
UNITED STATES COURT OF APPEALS
FOR THE DISTRICT OF COLUMBIA
CIRCUIT
ON WRIT OF CERTIORARI TO THE
UNITED STATES COURT OF APPEALS
FOR THE FIRST CIRCUIT
Attorneys and Law Firms
Roman Martinez, for Petitioners in No. 22–
1219.
Elizabeth B. Prelogar, Solicitor General, for the
Respondents in No. 22–1219 and No. 22–451.
Paul D. Clement for Petitioners in No. 22–451.
Ryan P. Mulvey, Eric R. Bolinder, R. James
Valvo, III, Cause of Action Institute, Arlington,
VA, Paul D. Clement, Counsel of Record,
Andrew C. Lawrence, Chadwick J. Harper,
Clement & Murphy, PLLC, Alexandria, VA, for
Petitioners in No. 22–451.
Elizabeth B. Prelogar, Solicitor General,
Counsel of Record, Todd Kim, Assistant
Attorney General, Edwin S. Kneedler,
Deputy Solicitor General, Matthew Guarnieri,
Assistant to the Solicitor General, Rachel
Heron, Dina B. Mishra, Daniel Halainen,
Attorneys, Department of Justice, Washington,
DC, Respondents in No. 22–1219 and No. 22–
451.
John J. Vecchione, Counsel of Record, Mark
S. Chenoweth, Kara M. Rollins, Philip
Hamburger, New Civil Liberties Alliance,
Washington, DC, Roman Martinez, Charles
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S. Dameron, Michael Clemente, William J.
Seidleck, Alexander G. Siemers, Jacob P.
Shapiro, Latham & Watkins LLP, Washington,
DC, for Petitioners in No. 22–1219.
Opinion
CHIEF JUSTICE ROBERTS delivered the
opinion of the Court.
*377 **2254 Since our decision in Chevron
U. S. A. Inc. v. Natural Resources Defense
Council, Inc., 467 U.S. 837, 104 S.Ct. 2778, 81
L.Ed.2d 694 (1984), we have *378 sometimes
required courts to defer to “permissible”
agency interpretations of the statutes those
agencies administer—even when a reviewing
court reads the statute differently. In these cases
we consider whether that doctrine should be
overruled.
*379 I
Our Chevron doctrine requires courts to use
a two-step framework to interpret statutes
administered by federal agencies. After
determining that a case satisfies the various
preconditions we have set for Chevron to apply,
a reviewing court must first assess “whether
Congress has directly spoken to the precise
question at issue.” Id., at 842, 104 S.Ct. 2778.
If, and only if, congressional intent is “clear,”
that is the end of the inquiry. Ibid. But if the
court determines that “the statute is silent or
ambiguous with respect to the specific issue”
at hand, the court must, at Chevron’s second
step, defer to the agency's interpretation if it “is
based on a permissible *380 construction of
the statute.” Id., at 843, 104 S.Ct. 2778. The
reviewing courts in each of the cases before
us applied Chevron’s framework to resolve in
favor of the Government challenges to the same
agency rule.
A
Before 1976, unregulated foreign vessels
dominated fishing in the international waters
off the U. S. coast, which began just 12
nautical miles offshore. See, e.g., S. Rep.
No. 94–459, pp. 2–3 (1975). Recognizing
the resultant overfishing and the need for
sound management of fishery resources,
Congress enacted the Magnuson-Stevens
Fishery Conservation and Management Act
(MSA). See 90 Stat. 331 (codified as amended
at 16 U.S.C. § 1801 et seq.). The MSA
and subsequent amendments extended the
jurisdiction of the United States to 200
nautical miles beyond the U. S. territorial sea
and claimed “exclusive fishery management
authority over all fish” within that area, known
as the “exclusive economic zone.” § 1811(a);
see Presidential Proclamation No. 5030, 3
C.F.R. 22 (1983 Comp.); §§ 101, 102, 90
Stat. 336. The National Marine Fisheries
Service (NMFS) administers the MSA under a
delegation from the Secretary of Commerce.
The MSA established eight regional
fishery management councils composed of
representatives from the coastal States, fishery
stakeholders, and NMFS. See 16 U.S.C. §§
1852(a), (b). The councils develop fishery
management plans, which NMFS approves
and promulgates as final regulations. See §§
1852(h), 1854(a). In **2255 service of the
statute's fishery conservation and management
goals, see § 1851(a), the MSA requires that
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certain provisions—such as “a mechanism
for specifying annual catch limits ... at a
level such that overfishing does not occur,” §
1853(a)(15)—be included in these plans, see §
1853(a). The plans may also include additional
discretionary provisions. See § 1853(b). For
example, plans may “prohibit, limit, condition,
or require the use of *381 specified types and
quantities of fishing gear, fishing vessels, or
equipment,” § 1853(b)(4); “reserve a portion
of the allowable biological catch of the fishery
for use in scientific research,” § 1853(b)
(11); and “prescribe such other measures,
requirements, or conditions and restrictions as
are determined to be necessary and appropriate
for the conservation and management of the
fishery,” § 1853(b)(14).
Relevant here, a plan may also require that
“one or more observers be carried on board”
domestic vessels “for the purpose of collecting
data necessary for the conservation and
management of the fishery.” § 1853(b)(8). The
MSA specifies three groups that must cover
costs associated with observers: (1) foreign
fishing vessels operating within the exclusive
economic zone (which must carry observers),
see §§ 1821(h)(1)(A), (h)(4), (h)(6); (2) vessels
participating in certain limited access privilege
programs, which impose quotas permitting
fishermen to harvest only specific quantities
of a fishery's total allowable catch, see §§
1802(26), 1853a(c)(1)(H), (e)(2), 1854(d)(2);
and (3) vessels within the jurisdiction of the
North Pacific Council, where many of the
largest and most successful commercial fishing
enterprises in the Nation operate, see § 1862(a).
In the latter two cases, the MSA expressly
caps the relevant fees at two or three percent
of the value of fish harvested on the vessels.
See §§ 1854(d)(2)(B), 1862(b)(2)(E). And in
general, it authorizes the Secretary to impose
“sanctions” when “any payment required for
observer services provided to or contracted by
an owner or operator ... has not been paid.” §
1858(g)(1)(D).
The MSA does not contain similar terms
addressing whether Atlantic herring fishermen
may be required to bear costs associated
with any observers a plan may mandate.
And at one point, NMFS fully funded the
observer coverage the New England Fishery
Management Council required in its plan for
the Atlantic herring fishery. See 79 Fed. Reg.
8792 (2014). In 2013, however, the council
proposed amending its fishery management
plans to empower it to require *382 fishermen
to pay for observers if federal funding
became unavailable. Several years later, NMFS
promulgated a rule approving the amendment.
See 85 Fed. Reg. 7414 (2020).
With respect to the Atlantic herring fishery, the
Rule created an industry funded program that
aims to ensure observer coverage on 50 percent
of trips undertaken by vessels with certain
types of permits. Under that program, vessel
representatives must “declare into” a fishery
before beginning a trip by notifying NMFS of
the trip and announcing the species the vessel
intends to harvest. If NMFS determines that an
observer is required, but declines to assign a
Government-paid one, the vessel must contract
with and pay for a Government-certified thirdparty observer. NMFS estimated that the cost of
such an observer would be up to $710 per day,
reducing annual returns to the vessel owner by
up to 20 percent. See id., at 7417–7418.
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B
Petitioners Loper Bright Enterprises, Inc., H&L
Axelsson, Inc., Lund Marr Trawlers LLC, and
Scombrus One LLC are family businesses that
operate in the **2256 Atlantic herring fishery.
In February 2020, they challenged the Rule
under the MSA, 16 U.S.C. § 1855(f), which
incorporates the Administrative Procedure Act
(APA), 5 U.S.C. § 551 et seq. In relevant part,
they argued that the MSA does not authorize
NMFS to mandate that they pay for observers
required by a fishery management plan. The
District Court granted summary judgment to
the Government. It concluded that the MSA
authorized the Rule, but noted that even if these
petitioners’ “arguments were enough to raise an
ambiguity in the statutory text,” deference to
the agency's interpretation would be warranted
under Chevron. 544 F.Supp.3d 82, 107 (D.C.C
2021); see id., at 103–107.
A divided panel of the D. C. Circuit
affirmed. See 45 F.4th 359 (2022). The
majority addressed various provisions of the
MSA and concluded that it was not “wholly
unambiguous” *383 whether NMFS may
require Atlantic herring fishermen to pay for
observers. Id., at 366. Because there remained
“some question” as to Congress's intent, id., at
369, the court proceeded to Chevron’s second
step and deferred to the agency's interpretation
as a “reasonable” construction of the MSA,
45 F.4th at 370. In dissent, Judge Walker
concluded that Congress's silence on industry
funded observers for the Atlantic herring
fishery—coupled with the express provision
for such observers in other fisheries and
on foreign vessels—unambiguously indicated
that NMFS lacked the authority to “require
[Atlantic herring] fishermen to pay the wages
of at-sea monitors.” Id., at 375.
C
Petitioners Relentless Inc., Huntress Inc., and
Seafreeze Fleet LLC own two vessels that
operate in the Atlantic herring fishery: the F/
V Relentless and the F/V Persistence. 1 These
vessels use small-mesh bottom-trawl gear and
can freeze fish at sea, so they can catch more
species of fish and take longer trips than other
vessels (about 10 to 14 days, as opposed to
the more typical 2 to 4). As a result, they
generally declare into multiple fisheries per trip
so they can catch whatever the ocean offers up.
If the vessels declare into the Atlantic herring
fishery for a particular trip, they must carry an
observer for that trip if NMFS selects the trip
for coverage, even if they end up harvesting
fewer herring than other vessels—or no herring
at all.
This set of petitioners, like those in the D. C.
Circuit case, filed a suit challenging the Rule as
unauthorized by the MSA. The District Court,
like the D. C. Circuit, deferred to NMFS's
contrary interpretation under Chevron and thus
granted summary judgment to the Government.
See 561 F.Supp.3d 226, 234–238 (D.R.I. 2021).
*384 The First Circuit affirmed. See 62 F.4th
621 (2023). It relied on a “default norm”
that regulated entities must bear compliance
costs, as well as the MSA's sanctions provision,
Section 1858(g)(1)(D). See id., at 629–631.
And it rejected petitioners’ argument that
the express statutory authorization of three
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industry funding programs demonstrated that
NMFS lacked the broad implicit authority
it asserted to impose such a program for
the Atlantic herring fishery. See id., at 631–
633. The court ultimately concluded that the
“[a]gency's interpretation of its authority to
require at-sea monitors who are paid for by
owners of regulated vessels does not ‘exceed[ ]
the bounds of the permissible.’ ” Id., at 633–
634 (quoting Barnhart v. Walton, 535 U.S.
212, 218, 122 S.Ct. 1265, 152 L.Ed.2d 330
(2002); alteration in original). In reaching that
conclusion, the First Circuit stated **2257 that
it was applying Chevron’s two-step framework.
62 F.4th at 628. But it did not explain which
aspects of its analysis were relevant to which
of Chevron’s two steps. Similarly, it declined
to decide whether the result was “a product of
Chevron step one or step two.” Id., at 634.
We granted certiorari in both cases, limited
to the question whether Chevron should be
overruled or clarified. See 601 U. S. ––––, 144
S.Ct. 325, 217 L.Ed.2d 154 (2023); 598 U. S.
––––, 144 S.Ct. 417, 217 L.Ed.2d 232 (2023). 2
II
A
Article III of the Constitution assigns to the
Federal Judiciary the responsibility and power
to adjudicate “Cases” and “Controversies”—
concrete disputes with consequences for the
parties involved. The Framers appreciated that
the laws judges would necessarily apply in
resolving those disputes *385 would not
always be clear. Cognizant of the limits of
human language and foresight, they anticipated
that “[a]ll new laws, though penned with the
greatest technical skill, and passed on the
fullest and most mature deliberation,” would be
“more or less obscure and equivocal, until their
meaning” was settled “by a series of particular
discussions and adjudications.” The Federalist
No. 37, p. 236 (J. Cooke ed. 1961) (J. Madison).
The Framers also envisioned that the final
“interpretation of the laws” would be “the
proper and peculiar province of the courts.”
Id., No. 78, at 525 (A. Hamilton). Unlike the
political branches, the courts would by design
exercise “neither Force nor Will, but merely
judgment.” Id., at 523. To ensure the “steady,
upright and impartial administration of the
laws,” the Framers structured the Constitution
to allow judges to exercise that judgment
independent of influence from the political
branches. Id., at 522; see id., at 522–524; Stern
v. Marshall, 564 U.S. 462, 484, 131 S.Ct. 2594,
180 L.Ed.2d 475 (2011).
This Court embraced the Framers’
understanding of the judicial function early
on. In the foundational decision of Marbury
v. Madison, Chief Justice Marshall famously
declared that “[i]t is emphatically the province
and duty of the judicial department to say what
the law is.” 1 Cranch 137, 177, 2 L.Ed. 60
(1803). And in the following decades, the Court
understood “interpret[ing] the laws, in the last
resort,” to be a “solemn duty” of the Judiciary.
United States v. Dickson, 15 Pet. 141, 162,
10 L.Ed. 689 (1841) (Story, J., for the Court).
When the meaning of a statute was at issue,
the judicial role was to “interpret the act of
Congress, in order to ascertain the rights of the
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parties.” Decatur v. Paulding, 14 Pet. 497, 515,
10 L.Ed. 559 (1840).
The Court also recognized from the outset,
though, that exercising independent judgment
often included according due respect to
Executive Branch interpretations of federal
statutes. For example, in Edwards’ Lessee v.
Darby, 12 Wheat. 206, 6 L.Ed. 603 (1827),
the Court explained that “[i]n the construction
*386 of a doubtful and ambiguous law, the
contemporaneous construction of those who
were called upon to act under the law, and were
appointed to carry its provisions into effect, is
entitled to very great respect.” Id., at 210; see
also United States v. Vowell, 5 Cranch 368, 372,
3 L.Ed. 128 (1809) (Marshall, C. J., for the
Court).
**2258
Such respect was thought
especially warranted when an Executive
Branch interpretation was issued roughly
contemporaneously with enactment of the
statute and remained consistent over time.
See Dickson, 15 Pet. at 161; United States
v. Alabama Great Southern R. Co., 142 U.S.
615, 621, 12 S.Ct. 306, 35 L.Ed. 1134 (1892);
National Lead Co. v. United States, 252 U.S.
140, 145–146, 40 S.Ct. 237, 64 L.Ed. 496
(1920). That is because “the longstanding
‘practice of the government’ ”—like any
other interpretive aid—“can inform [a court's]
determination of ‘what the law is.’ ” NLRB v.
Noel Canning, 573 U.S. 513, 525, 134 S.Ct.
2550, 189 L.Ed.2d 538 (2014) (first quoting
McCulloch v. Maryland, 4 Wheat. 316, 401,
4 L.Ed. 579 (1819); then quoting Marbury,
1 Cranch at 177). The Court also gave “the
most respectful consideration” to Executive
Branch interpretations simply because “[t]he
officers concerned [were] usually able men,
and masters of the subject,” who were “[n]ot
unfrequently ... the draftsmen of the laws they
[were] afterwards called upon to interpret.”
United States v. Moore, 95 U.S. 760, 763, 24
L.Ed. 588 (1878); see also Jacobs v. Prichard,
223 U.S. 200, 214, 32 S.Ct. 289, 56 L.Ed. 405
(1912).
“Respect,” though, was just that. The views
of the Executive Branch could inform the
judgment of the Judiciary, but did not supersede
it. Whatever respect an Executive Branch
interpretation was due, a judge “certainly
would not be bound to adopt the construction
given by the head of a department.” Decatur,
14 Pet. at 515; see also Burnet v. Chicago
Portrait Co., 285 U.S. 1, 16, 52 S.Ct. 275, 76
L.Ed. 587 (1932). Otherwise, judicial judgment
would not be independent at all. As Justice
Story put it, “in cases where [a court's] own
judgment ... differ[ed] from that of other high
functionaries,” the court *387 was “not at
liberty to surrender, or to waive it.” Dickson, 15
Pet. at 162.
B
The New Deal ushered in a “rapid expansion
of the administrative process.” United States
v. Morton Salt Co., 338 U.S. 632, 644, 70
S.Ct. 357, 94 L.Ed. 401 (1950). But as new
agencies with new powers proliferated, the
Court continued to adhere to the traditional
understanding that questions of law were
for courts to decide, exercising independent
judgment.
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During this period, the Court often treated
agency determinations of fact as binding on the
courts, provided that there was “evidence to
support the findings.” St. Joseph Stock Yards
Co. v. United States, 298 U.S. 38, 51, 56
S.Ct. 720, 80 L.Ed. 1033 (1936). “When the
legislature itself acts within the broad field of
legislative discretion,” the Court reasoned, “its
determinations are conclusive.” Ibid. Congress
could therefore “appoint[ ] an agent to act
within that sphere of legislative authority”
and “endow the agent with power to make
findings of fact which are conclusive, provided
the requirements of due process which are
specially applicable to such an agency are met,
as in according a fair hearing and acting upon
evidence and not arbitrarily.” Ibid. (emphasis
added).
But the Court did not extend similar deference
to agency resolutions of questions of law.
It instead made clear, repeatedly, that “[t]he
interpretation of the meaning of statutes,
as applied to justiciable controversies,” was
“exclusively a judicial function.” United States
v. American Trucking Assns., Inc., 310 U.S.
534, 544, 60 S.Ct. 1059, 84 L.Ed. 1345 (1940);
see also Social Security Bd. v. Nierotko, 327
U.S. 358, 369, 66 S.Ct. 637, 90 L.Ed. 718
(1946); Medo Photo Supply Corp. v. NLRB,
321 U.S. 678, 681–682, n. 1, 64 S.Ct. 830,
88 L.Ed. 1007 (1944). The Court **2259
understood, in the words of Justice Brandeis,
that “[t]he supremacy of law demands that
there shall be opportunity to have some court
decide whether an erroneous rule of law was
applied.” *388 St. Joseph Stock Yards, 298
U.S. at 84, 56 S.Ct. 720 (concurring opinion).
It also continued to note, as it long had, that
the informed judgment of the Executive Branch
—especially in the form of an interpretation
issued contemporaneously with the enactment
of the statute—could be entitled to “great
weight.” American Trucking Assns., 310 U.S.
at 549, 60 S.Ct. 1059.
Perhaps most notably along those lines, in
Skidmore v. Swift & Co., 323 U.S. 134,
65 S.Ct. 161, 89 L.Ed. 124 (1944), the
Court explained that the “interpretations and
opinions” of the relevant agency, “made in
pursuance of official duty” and “based upon ...
specialized experience,” “constitute[d] a body
of experience and informed judgment to which
courts and litigants [could] properly resort
for guidance,” even on legal questions. Id.,
at 139–140, 65 S.Ct. 161. “The weight of
such a judgment in a particular case,” the
Court observed, would “depend upon 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, if
lacking power to control.” Id., at 140, 65 S.Ct.
161.
On occasion, to be sure, the Court applied
deferential review upon concluding that a
particular statute empowered an agency to
decide how a broad statutory term applied
to specific facts found by the agency. For
example, in Gray v. Powell, 314 U.S. 402,
62 S.Ct. 326, 86 L.Ed. 301 (1941), the Court
deferred to an administrative conclusion that
a coal-burning railroad that had arrangements
with several coal mines was not a coal
“producer” under the Bituminous Coal Act
of 1937. Congress had “specifically” granted
the agency the authority to make that
determination. Id., at 411, 62 S.Ct. 326. The
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Court thus reasoned that “[w]here, as here, a
determination has been left to an administrative
body, this delegation will be respected and the
administrative conclusion left untouched” so
long as the agency's decision constituted “a
sensible exercise of judgment.” Id., at 412–
413, 62 S.Ct. 326. Similarly, in NLRB v.
Hearst Publications, Inc., 322 U.S. 111, 64
S.Ct. 851, 88 L.Ed. 1170 (1944), the Court
deferred to the determination of the National
Labor Relations Board that *389 newsboys
were “employee[s]” within the meaning of the
National Labor Relations Act. The Act had,
in the Court's judgment, “assigned primarily”
to the Board the task of marking a “definitive
limitation around the term ‘employee.’ ” Id.,
at 130, 64 S.Ct. 851. The Court accordingly
viewed its own role as “limited” to assessing
whether the Board's determination had a “
‘warrant in the record’ and a reasonable basis
in law.” Id., at 131, 64 S.Ct. 851.
Such deferential review, though, was cabined
to factbound determinations like those at issue
in Gray and Hearst. Neither Gray nor Hearst
purported to refashion the longstanding judicial
approach to questions of law. In Gray, after
deferring to the agency's determination that
a particular entity was not a “producer” of
coal, the Court went on to discern, based on
its own reading of the text, whether another
statutory term—“other disposal” of coal—
encompassed a transaction lacking a transfer
of title. See 314 U.S. at 416–417, 62 S.Ct.
326. The Court evidently perceived no basis
for deference to the agency with respect to that
pure legal question. And in Hearst, the Court
proclaimed that “[u]ndoubtedly questions of
statutory interpretation ... are for the courts
to resolve, giving appropriate weight to the
judgment **2260 of those whose special
duty is to administer the questioned statute.”
322 U.S. at 130–131, 64 S.Ct. 851. At
least with respect to questions it regarded as
involving “statutory interpretation,” the Court
thus did not disturb the traditional rule. It
merely thought that a different approach should
apply where application of a statutory term
was sufficiently intertwined with the agency's
factfinding.
In any event, the Court was far from consistent
in reviewing deferentially even such factbound
statutory determinations. Often the Court
simply interpreted and applied the statute
before it. See K. Davis, Administrative Law §
248, p. 893 (1951) (“The one statement that can
be made with confidence about applicability
of the doctrine of Gray v. Powell is that
sometimes the Supreme Court applies it and
sometimes *390 it does not.”); B. Schwartz,
Gray vs. Powell and the Scope of Review,
54 Mich. L. Rev. 1, 68 (1955) (noting an
“embarrassingly large number of Supreme
Court decisions that do not adhere to the
doctrine of Gray v. Powell”). In one illustrative
example, the Court rejected the U. S. Price
Administrator's determination that a particular
warehouse was a “public utility” entitled
to an exemption from the Administrator's
General Maximum Price Regulation. Despite
the striking resemblance of that administrative
determination to those that triggered deference
in Gray and Hearst, the Court declined
to “accept the Administrator's view in
deference to administrative construction.”
Davies Warehouse Co. v. Bowles, 321 U.S.
144, 156, 64 S.Ct. 474, 88 L.Ed. 635 (1944).
The Administrator's view, the Court explained,
had “hardly seasoned or broadened into a
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settled administrative practice,” and thus did
not “overweigh the considerations” the Court
had “set forth as to the proper construction of
the statute.” Ibid.
Nothing in the New Deal era or before it
thus resembled the deference rule the Court
would begin applying decades later to all
varieties of agency interpretations of statutes.
Instead, just five years after Gray and two after
Hearst, Congress codified the opposite rule:
the traditional understanding that courts must
“decide all relevant questions of law.” 5 U.S.C.
§ 706. 3
*391 **2261 C
Congress in 1946 enacted the APA “as a
check upon administrators whose zeal might
otherwise have carried them to excesses
not contemplated in legislation creating their
offices.” Morton Salt, 338 U.S. at 644, 70
S.Ct. 357. It was the culmination of a
“comprehensive rethinking of the place of
administrative agencies in a regime of separate
and divided powers.” Bowen v. Michigan
Academy of Family Physicians, 476 U.S. 667,
670–671, 106 S.Ct. 2133, 90 L.Ed.2d 623
(1986).
In addition to prescribing procedures for
agency action, the APA delineates the basic
contours of judicial review of such action.
As relevant here, Section 706 directs that
“[t]o the extent necessary to decision and
when presented, the reviewing court shall
decide all relevant questions of law, interpret
constitutional and statutory provisions, and
determine the meaning or applicability of the
terms of an agency action.” 5 U.S.C. § 706. It
further requires courts to “hold unlawful and set
aside agency action, findings, and conclusions
found to be ... not in accordance with law.” §
706(2)(A).
The APA thus codifies for agency cases
the unremarkable, yet elemental proposition
reflected by judicial practice dating *392
back to Marbury: that courts decide legal
questions by applying their own judgment. It
specifies that courts, not agencies, will decide
“all relevant questions of law” arising on
review of agency action, § 706 (emphasis
added)—even those involving ambiguous laws
—and set aside any such action inconsistent
with the law as they interpret it. And it
prescribes no deferential standard for courts
to employ in answering those legal questions.
That omission is telling, because Section 706
does mandate that judicial review of agency
policymaking and factfinding be deferential.
See § 706(2)(A) (agency action to be set
aside if “arbitrary, capricious, [or] an abuse of
discretion”); § 706(2)(E) (agency factfinding
in formal proceedings to be set aside if
“unsupported by substantial evidence”).
In a statute designed to “serve as the
fundamental charter of the administrative
state,” Kisor v. Wilkie, 588 U.S. 558, 580, 139
S.Ct. 2400, 204 L.Ed.2d 841 (2019) (plurality
opinion) (internal quotation marks omitted),
Congress surely would have articulated a
similarly deferential standard applicable to
questions of law had it intended to depart
from the settled pre-APA understanding that
deciding such questions was “exclusively a
judicial function,” American Trucking Assns.,
310 U.S. at 544, 60 S.Ct. 1059. But
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nothing in the APA hints at such a dramatic
departure. On the contrary, by directing
courts to “interpret constitutional and statutory
provisions” without differentiating between
the two, Section 706 makes clear that
agency interpretations of statutes—like agency
interpretations of the Constitution—are not
entitled to deference. Under the APA, it thus
“remains the responsibility of the court to
decide whether the law means what the agency
says.” Perez v. Mortgage Bankers Assn., 575
U.S. 92, 109, 135 S.Ct. 1199, 191 L.Ed.2d 186
(2015) (Scalia, J., concurring in judgment). 4
*393 **2262 The text of the APA means
what it says. And a look at its history if
anything only underscores that plain meaning.
According to both the House and Senate
Reports on the legislation, Section 706
“provide[d] that questions of law are for
courts rather than agencies to decide in the
last analysis.” H. R. Rep. No. 1980, 79th
Cong., 2d Sess., 44 (1946) (emphasis added);
accord, S. Rep. No. 752, 79th Cong., 1st
Sess., 28 (1945). Some of the legislation's
most prominent supporters articulated the
same view. See 92 Cong. Rec. 5654 (1946)
(statement of Rep. Walter); P. McCarran,
Improving “Administrative Justice”: Hearings
and Evidence; Scope of Judicial Review, 32 A.
B. A. J. 827, 831 (1946). Even the Department
of Justice—an agency with every incentive to
endorse a view of the APA favorable to the
Executive Branch—opined after its enactment
that Section 706 merely “restate[d] the present
law as to the scope of judicial review.” Dept.
of Justice, Attorney General's Manual on the
Administrative Procedure Act 108 (1947); see
also Kisor, 588 U.S. at 582, 139 S.Ct. 2400
(plurality opinion) (same). That “present law,”
as we have described, adhered to the traditional
conception of the judicial function. See supra,
at 2258 – 2261.
Various
respected
commentators
contemporaneously maintained that the APA
required reviewing courts to exercise
independent judgment on questions of law.
Professor John Dickinson, for example, read
the APA to “impose a clear mandate that all
[questions of law] shall be decided by the
reviewing Court itself, and in the exercise
of its own *394 independent judgment.”
Administrative Procedure Act: Scope and
Grounds of Broadened Judicial Review, 33 A.
B. A. J. 434, 516 (1947). Professor Bernard
Schwartz noted that § 706 “would seem ... to be
merely a legislative restatement of the familiar
review principle that questions of law are for
the reviewing court, at the same time leaving to
the courts the task of determining in each case
what are questions of law.” Mixed Questions of
Law and Fact and the Administrative Procedure
Act, 19 Ford. L. Rev. 73, 84–85 (1950).
And Professor Louis Jaffe, who had served
in several agencies at the advent of the New
Deal, thought that § 706 leaves it up to the
reviewing “court” to “decide as a ‘question
of law’ whether there is ‘discretion’ in the
premises”—that is, whether the statute at issue
delegates particular discretionary authority to
an agency. Judicial Control of Administrative
Action 570 (1965).
The APA, in short, incorporates the
traditional understanding of the judicial
function, under which courts must exercise
independent judgment in determining the
meaning of statutory provisions. In exercising
such judgment, though, courts may—as
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they have from the start—seek aid from
the interpretations of those responsible
for implementing particular statutes. Such
interpretations “constitute a body of experience
and informed judgment to which courts and
litigants may properly resort for guidance”
consistent with the APA. Skidmore, 323 U.S. at
140, 65 S.Ct. 161. And interpretations issued
contemporaneously with the statute at issue,
and which have remained consistent over time,
may be especially useful in determining the
statute's meaning. See ibid.; American Trucking
Assns., 310 U.S. at 549, 60 S.Ct. 1059.
**2263 In a case involving an agency, of
course, the statute's meaning may well be that
the agency is authorized to exercise a degree
of discretion. Congress has often enacted such
statutes. For example, some statutes “expressly
delegate[ ]” to an agency the authority to give
meaning to a particular statutory term. *395
Batterton v. Francis, 432 U.S. 416, 425, 97
S.Ct. 2399, 53 L.Ed.2d 448 (1977) (emphasis
deleted). 5 Others empower an agency to
prescribe rules to “fill up the details” of a
statutory scheme, Wayman v. Southard, 10
Wheat. 1, 43, 6 L.Ed. 253 (1825), or to regulate
subject to the limits imposed by a term or
phrase that “leaves agencies with flexibility,”
Michigan v. EPA, 576 U.S. 743, 752, 135
S.Ct. 2699, 192 L.Ed.2d 674 (2015), such as
“appropriate” or “reasonable.” 6
When the best reading of a statute is that it
delegates discretionary authority to an agency,
the role of the reviewing court under the APA
is, as always, to independently interpret the
statute and effectuate the will of Congress
subject to constitutional limits. The court
fulfills that role by recognizing constitutional
delegations, “fix[ing] the boundaries of [the]
delegated authority,” H. Monaghan, Marbury
and the Administrative State, 83 Colum. L.
Rev. 1, 27 (1983), and ensuring the agency
has engaged in “ ‘reasoned decisionmaking’ ”
within those boundaries, Michigan, 576 U.S. at
750, 135 S.Ct. 2699 (quoting Allentown Mack
Sales & Service, Inc. v. NLRB, 522 U.S. 359,
374, 118 S.Ct. 818, 139 L.Ed.2d 797 (1998));
see also Motor Vehicle Mfrs. Assn. of United
States, Inc. v. State Farm Mut. Automobile Ins.
Co., 463 U.S. 29, 103 S.Ct. 2856, 77 L.Ed.2d
443 (1983). By doing so, a court upholds the
*396 traditional conception of the judicial
function that the APA adopts.
III
The deference that Chevron requires of courts
reviewing agency action cannot be squared
with the APA.
A
In the decades between the enactment of the
APA and this Court's decision in Chevron,
courts generally continued to review agency
interpretations of the statutes they administer
by independently examining each statute
to determine its meaning. Cf. T. Merrill,
Judicial Deference to Executive Precedent,
101 Yale L. J. 969, 972–975 (1992). As
an early proponent (and later critic) of
Chevron recounted, courts during this period
thus identified delegations of discretionary
authority to agencies on a “statute-by-statute
basis.” A. Scalia, **2264 Judicial Deference
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to Administrative Interpretations of Law, 1989
Duke L. J. 511, 516.
Chevron, decided in 1984 by a bare quorum
of six Justices, triggered a marked departure
from the traditional approach. The question
in the case was whether an EPA regulation
“allow[ing] States to treat all of the pollutionemitting devices within the same industrial
grouping as though they were encased within a
single ‘bubble’ ” was consistent with the term
“stationary source” as used in the Clean Air
Act. 467 U.S. at 840, 104 S.Ct. 2778. To answer
that question of statutory interpretation, the
Court articulated and employed a now familiar
two-step approach broadly applicable to review
of agency action.
The first step was to discern “whether Congress
ha[d] directly spoken to the precise question at
issue.” Id., at 842, 104 S.Ct. 2778. The Court
explained that “[i]f the intent of Congress is
clear, that is the end of the matter,” ibid., and
courts were therefore to “reject administrative
constructions which are contrary to clear
congressional intent,” id., at 843, n. 9, 104 S.Ct.
2778. To discern *397 such intent, the Court
noted, a reviewing court was to “employ[ ]
traditional tools of statutory construction.”
Ibid.
Without
mentioning
the
APA,
or
acknowledging any doctrinal shift, the Court
articulated a second step applicable when
“Congress ha[d] not directly addressed the
precise question at issue.” Id., at 843, 104
S.Ct. 2778. In such a case—that is, a case in
which “the statute [was] silent or ambiguous
with respect to the specific issue” at hand—a
reviewing court could not “simply impose its
own construction on the statute, as would be
necessary in the absence of an administrative
interpretation.” Ibid. (footnote omitted). A
court instead had to set aside the traditional
interpretive tools and defer to the agency if it
had offered “a permissible construction of the
statute,” ibid., even if not “the reading the court
would have reached if the question initially had
arisen in a judicial proceeding,” ibid., n. 11.
That directive was justified, according to the
Court, by the understanding that administering
statutes “requires the formulation of policy”
to fill statutory “gap[s]”; by the long judicial
tradition of according “considerable weight”
to Executive Branch interpretations; and by
a host of other considerations, including
the complexity of the regulatory scheme,
EPA's “detailed and reasoned” consideration,
the policy-laden nature of the judgment
supposedly required, and the agency's indirect
accountability to the people through the
President. Id., at 843, 844, and n. 14, 865, 104
S.Ct. 2778.
Employing this new test, the Court concluded
that Congress had not addressed the question at
issue with the necessary “level of specificity”
and that EPA's interpretation was “entitled to
deference.” Id., at 865, 104 S.Ct. 2778. It did
not matter why Congress, as the Court saw it,
had not squarely addressed the question, see
ibid., or that “the agency ha[d] from time to
time changed its interpretation,” id., at 863,
104 S.Ct. 2778. The latest EPA interpretation
was a permissible reading of the Clean Air
Act, so under the Court's new rule, that reading
controlled.
*398 Initially, Chevron “seemed destined to
obscurity.” T. Merrill, The Story of Chevron:
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The Making of an Accidental Landmark, 66
Admin. L. Rev. 253, 276 (2014). The Court did
not at first treat it as the watershed decision
it was fated to become; it was hardly cited in
cases involving statutory questions of agency
authority. See ibid. But within a few years,
both this Court and the courts of appeals were
routinely invoking its two-step framework as
the governing standard in such cases. See
id., at 276–277. As the Court did so, it
revisited the doctrine's justifications. **2265
Eventually, the Court decided that Chevron
rested on “a presumption that Congress, when
it left ambiguity in a statute meant for
implementation by an agency, understood that
the ambiguity would be resolved, first and
foremost, by the agency, and desired the agency
(rather than the courts) to possess whatever
degree of discretion the ambiguity allows.”
Smiley v. Citibank (South Dakota), N. A.,
517 U.S. 735, 740–741, 116 S.Ct. 1730, 135
L.Ed.2d 25 (1996); see also, e.g., Cuozzo Speed
Technologies, LLC v. Lee, 579 U.S. 261, 276–
277, 136 S.Ct. 2131, 195 L.Ed.2d 423 (2016);
Utility Air Regulatory Group v. EPA, 573 U.S.
302, 315, 134 S.Ct. 2427, 189 L.Ed.2d 372
(2014); National Cable & Telecommunications
Assn. v. Brand X Internet Services, 545 U.S.
967, 982, 125 S.Ct. 2688, 162 L.Ed.2d 820
(2005).
B
Neither Chevron nor any subsequent decision
of this Court attempted to reconcile its
framework with the APA. The “law of
deference” that this Court has built on the
foundation laid in Chevron has instead been
“[h]eedless of the original design” of the APA.
Perez, 575 U.S. at 109, 135 S.Ct. 1199 (Scalia,
J., concurring in judgment).
1
Chevron defies the command of the APA
that “the reviewing court”—not the agency
whose action it reviews—is to “decide all
relevant questions of law” and “interpret ...
statutory provisions.” § 706 (emphasis added).
It requires a court to ignore, not follow,
“the reading the court would have *399
reached” had it exercised its independent
judgment as required by the APA. Chevron,
467 U.S. at 843, n. 11, 104 S.Ct. 2778.
And although exercising independent judgment
is consistent with the “respect” historically
given to Executive Branch interpretations, see,
e.g., Edwards’ Lessee, 12 Wheat. at 210;
Skidmore, 323 U.S. at 140, 65 S.Ct. 161,
Chevron insists on much more. It demands that
courts mechanically afford binding deference
to agency interpretations, including those that
have been inconsistent over time. See 467
U.S. at 863, 104 S.Ct. 2778. Still worse,
it forces courts to do so even when a preexisting judicial precedent holds that the statute
means something else—unless the prior court
happened to also say that the statute is
“unambiguous.” Brand X, 545 U.S. at 982, 125
S.Ct. 2688. That regime is the antithesis of
the time honored approach the APA prescribes.
In fretting over the prospect of “allow[ing]” a
judicial interpretation of a statute “to override
an agency's” in a dispute before a court, ibid.,
Chevron turns the statutory scheme for judicial
review of agency action upside down.
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Chevron cannot be reconciled with the APA,
as the Government and the dissent contend,
by presuming that statutory ambiguities are
implicit delegations to agencies. See Brief
for Respondents in No. 22–1219, pp. 13,
37–38; post, at 2295 – 2302 (opinion of
KAGAN, J.). Presumptions have their place
in statutory interpretation, but only to the
extent that they approximate reality. Chevron’s
presumption does not, because “[a]n ambiguity
is simply not a delegation of law-interpreting
power. Chevron confuses the two.” C. Sunstein,
Interpreting Statutes in the Regulatory State,
103 Harv. L. Rev. 405, 445 (1989). As
Chevron itself noted, ambiguities may result
from an inability on the part of Congress to
squarely answer the question at hand, or from
a failure to even “consider the question” with
the requisite precision. 467 U.S. at 865, 104
S.Ct. 2778. In neither case does an ambiguity
necessarily reflect a congressional intent that
an agency, as opposed to a court, resolve
the resulting interpretive question. *400 And
many or perhaps most statutory ambiguities
may be **2266 unintentional. As the Framers
recognized, ambiguities will inevitably follow
from “the complexity of objects, ... the
imperfection of the human faculties,” and the
simple fact that “no language is so copious as
to supply words and phrases for every complex
idea.” The Federalist No. 37, at 236.
Courts, after all, routinely confront statutory
ambiguities in cases having nothing to do with
Chevron—cases that do not involve agency
interpretations or delegations of authority. Of
course, when faced with a statutory ambiguity
in such a case, the ambiguity is not a delegation
to anybody, and a court is not somehow relieved
of its obligation to independently interpret the
statute. Courts in that situation do not throw
up their hands because “Congress's instructions
have” supposedly “run out,” leaving a statutory
“gap.” Post, at 2294 (opinion of KAGAN, J.).
Courts instead understand that such statutes,
no matter how impenetrable, do—in fact, must
—have a single, best meaning. That is the
whole point of having written statutes; “every
statute's meaning is fixed at the time of
enactment.” Wisconsin Central Ltd. v. United
States, 585 U.S. 274, 284, 138 S.Ct. 2067,
201 L.Ed.2d 490 (2018) (emphasis deleted). So
instead of declaring a particular party's reading
“permissible” in such a case, courts use every
tool at their disposal to determine the best
reading of the statute and resolve the ambiguity.
In an agency case as in any other, though, even
if some judges might (or might not) consider
the statute ambiguous, there is a best reading
all the same—“the reading the court would
have reached” if no agency were involved.
Chevron, 467 U.S. at 843, n. 11, 104 S.Ct.
2778. It therefore makes no sense to speak of a
“permissible” interpretation that is not the one
the court, after applying all relevant interpretive
tools, concludes is best. In the business of
statutory interpretation, if it is not the best, it is
not permissible.
Perhaps most fundamentally, Chevron’s
presumption is misguided because agencies
have no special competence in *401 resolving
statutory ambiguities. Courts do. The Framers,
as noted, anticipated that courts would
often confront statutory ambiguities and
expected that courts would resolve them by
exercising independent legal judgment. And
even Chevron itself reaffirmed that “[t]he
judiciary is the final authority on issues
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of statutory construction” and recognized
that “in the absence of an administrative
interpretation,” it is “necessary” for a court to
“impose its own construction on the statute.”
Id., at 843, and n. 9, 104 S.Ct. 2778. Chevron
gravely erred, though, in concluding that the
inquiry is fundamentally different just because
an administrative interpretation is in play. The
very point of the traditional tools of statutory
construction—the tools courts use every day
—is to resolve statutory ambiguities. That is
no less true when the ambiguity is about the
scope of an agency's own power—perhaps the
occasion on which abdication in favor of the
agency is least appropriate.
2
The Government responds that Congress must
generally intend for agencies to resolve
statutory ambiguities because agencies have
subject matter expertise regarding the statutes
they administer; because deferring to agencies
purportedly promotes the uniform construction
of federal law; and because resolving statutory
ambiguities can involve policymaking best
left to political actors, rather than courts. See
Brief for Respondents in No. 22–1219, pp.
16–19. The dissent offers more of the same.
See post, at 2298 – 2301. But none of these
considerations justifies Chevron’s **2267
sweeping presumption of congressional intent.
Beginning with expertise, we recently noted
that interpretive issues arising in connection
with a regulatory scheme often “may fall more
naturally into a judge's bailiwick” than an
agency's. Kisor, 588 U.S. at 578, 139 S.Ct.
2400 (opinion of the Court). We thus observed
that “[w]hen the agency has no comparative
expertise in resolving a regulatory ambiguity,
Congress presumably would not grant it that
authority.” Ibid. *402 Chevron’s broad rule
of deference, though, demands that courts
presume just the opposite. Under that rule,
ambiguities of all stripes trigger deference.
Indeed, the Government and, seemingly, the
dissent continue to defend the proposition that
Chevron applies even in cases having little to
do with an agency's technical subject matter
expertise. See Brief for Respondents in No.
221219, p. 17; post, at 2298 – 2299.
But even when an ambiguity happens to
implicate a technical matter, it does not
follow that Congress has taken the power to
authoritatively interpret the statute from the
courts and given it to the agency. Congress
expects courts to handle technical statutory
questions. “[M]any statutory cases” call upon
“courts [to] interpret the mass of technical
detail that is the ordinary diet of the law,”
Egelhoff v. Egelhoff, 532 U.S. 141, 161, 121
S.Ct. 1322, 149 L.Ed.2d 264 (2001) (Breyer,
J., dissenting), and courts did so without issue
in agency cases before Chevron, see post,
at 2291 – 2292 (GORSUCH, J., concurring).
Courts, after all, do not decide such questions
blindly. The parties and amici in such cases
are steeped in the subject matter, and reviewing
courts have the benefit of their perspectives.
In an agency case in particular, the court will
go about its task with the agency's “body of
experience and informed judgment,” among
other information, at its disposal. Skidmore,
323 U.S. at 140, 65 S.Ct. 161. And although
an agency's interpretation of a statute “cannot
bind a court,” it may be especially informative
“to the extent it rests on factual premises within
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[the agency's] expertise.” Bureau of Alcohol,
Tobacco and Firearms v. FLRA, 464 U.S. 89,
98, n. 8, 104 S.Ct. 439, 78 L.Ed.2d 195 (1983).
Such expertise has always been one of the
factors which may give an Executive Branch
interpretation particular “power to persuade, if
lacking power to control.” Skidmore, 323 U.S.
at 140, 65 S.Ct. 161; see, e.g., County of Maui v.
Hawaii Wildlife Fund, 590 U.S. 165, 180, 140
S.Ct. 1462, 206 L.Ed.2d 640 (2020); Moore, 95
U.S. at 763.
For those reasons, delegating ultimate
interpretive authority to agencies is simply
not necessary to ensure that the *403
resolution of statutory ambiguities is well
informed by subject matter expertise. The
better presumption is therefore that Congress
expects courts to do their ordinary job of
interpreting statutes, with due respect for
the views of the Executive Branch. And to
the extent that Congress and the Executive
Branch may disagree with how the courts have
performed that job in a particular case, they
are of course always free to act by revising the
statute.
Nor does a desire for the uniform construction
of federal law justify Chevron. Given
inconsistencies in how judges apply Chevron,
see infra, at 2270 – 2272, it is unclear how
much the doctrine as a whole (as opposed
to its highly deferential second step) actually
promotes such uniformity. In any event, there is
little value in imposing a uniform interpretation
of a statute if that interpretation is wrong.
We see no reason to presume that Congress
prefers uniformity for uniformity's sake over
the correct interpretation of the laws it enacts.
The view that interpretation of ambiguous
statutory provisions amounts to policymaking
**2268 suited for political actors rather than
courts is especially mistaken, for it rests
on a profound misconception of the judicial
role. It is reasonable to assume that Congress
intends to leave policymaking to political
actors. But resolution of statutory ambiguities
involves legal interpretation. That task does not
suddenly become policymaking just because a
court has an “agency to fall back on.” Kisor,
588 U.S. at 575, 139 S.Ct. 2400 (opinion of
the Court). Courts interpret statutes, no matter
the context, based on the traditional tools of
statutory construction, not individual policy
preferences. Indeed, the Framers crafted the
Constitution to ensure that federal judges could
exercise judgment free from the influence of
the political branches. See The Federalist, No.
78, at 522–525. They were to construe the law
with “[c]lear heads ... and honest hearts,” not
with an eye to policy preferences that had not
made it into *404 the statute. 1 Works of James
Wilson 363 (J. Andrews ed. 1896).
That is not to say that Congress cannot or
does not confer discretionary authority on
agencies. Congress may do so, subject to
constitutional limits, and it often has. But
to stay out of discretionary policymaking
left to the political branches, judges need
only fulfill their obligations under the APA
to independently identify and respect such
delegations of authority, police the outer
statutory boundaries of those delegations, and
ensure that agencies exercise their discretion
consistent with the APA. By forcing courts to
instead pretend that ambiguities are necessarily
delegations, Chevron does not prevent judges
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from making policy. It prevents them from
judging.
3
In truth, Chevron’s justifying presumption is, as
Members of this Court have often recognized,
a fiction. See Buffington v. McDonough, 598
U. S. ––––, ––––, 143 S.Ct. 14, 19–20,
214 L.Ed.2d 206 (2022) (GORSUCH, J.,
dissenting from denial of certiorari); Cuozzo,
579 U.S. at 286, 136 S.Ct. 2131 (THOMAS,
J., concurring); Scalia, 1989 Duke L. J., at
517; see also post, at 2301 – 2302 (opinion
of KAGAN, J.). So we have spent the better
part of four decades imposing one limitation on
Chevron after another, pruning its presumption
on the understanding that “where it is in doubt
that Congress actually intended to delegate
particular interpretive authority to an agency,
Chevron is ‘inapplicable.’ ” United States v.
Mead Corp., 533 U.S. 218, 230, 121 S.Ct. 2164,
150 L.Ed.2d 292 (2001) (quoting Christensen
v. Harris County, 529 U.S. 576, 597, 120
S.Ct. 1655, 146 L.Ed.2d 621 (2000) (Breyer,
J., dissenting)); see also Adams Fruit Co. v.
Barrett, 494 U.S. 638, 649, 110 S.Ct. 1384, 108
L.Ed.2d 585 (1990).
Consider the many refinements we have made
in an effort to match Chevron’s presumption
to reality. We have said that Chevron applies
only “when it appears that Congress delegated
authority to the agency generally to make
rules carrying the force of law, and that
the agency interpretation claiming deference
was promulgated in the exercise of that
*405 authority.” Mead, 533 U.S. at 226–
227, 121 S.Ct. 2164. In practice, that threshold
requirement—sometimes called Chevron “step
zero”—largely limits Chevron to “the fruits
of notice-and-co
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