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No. 10614413
United States Court of Appeals for the Ninth Circuit
Nguyen v. Bonta
No. 10614413 · Decided June 20, 2025
No. 10614413·Ninth Circuit · 2025·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
June 20, 2025
Citation
No. 10614413
Disposition
See opinion text.
Full Opinion
FOR PUBLICATION
UNITED STATES COURT OF APPEALS
FOR THE NINTH CIRCUIT
MICHELLE NGUYEN; DOMINIC No. 24-2036
BOGUSKI; JAY MEDINA; FRANK
D.C. No.
COLLETTI; JOHN PHILLIPS;
3:20-cv-02470-
PWGG, LP; DARIN PRINCE;
WQH-MMP
NORTH COUNTY SHOOTING
CENTER, INC.; FIREARMS
POLICY COALITION, INC.; SAN OPINION
DIEGO COUNTY GUN OWNERS
POLITICAL ACTION
COMMITTEE; SECOND
AMENDMENT FOUNDATION,
Plaintiffs - Appellees,
v.
ROB BONTA, in his official capacity
as Attorney General of the State of
California; ALLISON MENDOZA,
in her capacity as the Director of the
Department of Justice Bureau of
Firearms,
Defendants - Appellants.
Appeal from the United States District Court
for the Southern District of California
William Q. Hayes, District Judge, Presiding
2 NGUYEN V. BONTA
Argued and Submitted August 14, 2024
Submission Vacated February 21, 2025
Resubmitted June 20, 2025
Pasadena, California
Filed June 20, 2025
Before: John B. Owens, Bridget S. Bade, and Danielle J.
Forrest, Circuit Judges.
Opinion by Judge Forrest;
Concurrence by Judge Owens
SUMMARY*
Second Amendment
Affirming the district court’s summary judgment in
favor of plaintiffs, the panel held that California’s “one-gun-
a-month” law, which prohibits most people from buying
more than one firearm in a 30-day period, facially violates
the Second Amendment.
Applying New York State Rifle & Pistol Association v.
Bruen, 597 U.S. 1 (2022), the panel first asked whether the
Second Amendment's plain text covers the regulated
conduct. If so, the Constitution presumptively protects that
conduct. That presumption can be overcome only if
*
This summary constitutes no part of the opinion of the court. It has
been prepared by court staff for the convenience of the reader.
NGUYEN V. BONTA 3
historical precedent from before, during, and even after the
founding evinces a comparable tradition of regulation.
The panel held that California’s law is facially
unconstitutional because the plain text of the Second
Amendment protects the possession of multiple firearms and
protects against meaningful constraints on the acquisition of
firearms through purchase.
Next, the panel held that California’s law is not
supported by this nation’s tradition of firearms
regulation. Bruen requires a “historical analogue,” not a
“historical twin,” for a modern firearm regulation to pass
muster. Here, the historical record does not even establish a
historical cousin for California’s one-gun-a-month law.
Concurring, Judge Owens wrote separately to note that
the panel’s opinion only concerns California’s “one-gun-a-
month” law. It does not address other means of restricting
bulk and straw purchasing of firearms, which this nation’s
tradition of firearm regulation may support.
COUNSEL
Raymond M. DiGuiseppe (argued), The DiGuiseppe Law
Firm PC, Southport, North Carolina, for Plaintiffs-
Appellees.
Jerry T. Yen (argued), Christina R.B. Lopez, Deputy
Attorneys General; Anthony R. Hakl, Supervising Deputy
Attorney General; Thomas S. Patterson, Senior Assistant
Attorney General; Rob Bonta, Attorney General of
California; Office of the California Attorney General,
Sacramento, California; for Defendants-Appellants.
4 NGUYEN V. BONTA
C.D. Michel and Anna M. Barvir, Michel & Associates PC,
Long Beach, California, for Amici Curiae California Rifle &
Pistol Association, Second Amendment Law Center, and
Operation Blazing Sword-Pink Pistols.
Joseph G.S. Greenlee and Erin M. Erhardt, National Rifle
Association of America, Institute for Legislative Action,
Fairfax, Virginia, for Amicus Curiae National Rifle
Association of America.
Erin E. Murphy, Paul D. Clement, Matthew D. Rowen, and
Nicholas M. Gallagher, Clement & Murphy PLLC,
Alexandria, Virginia; Lawrence G. Keane and Shelby B.
Smith, National Shooting Sports Foundation Inc.,
Washington, D.C.; for Amicus Curiae National Shooting
Sports Foundation Inc..
Jeremiah L. Morgan and William J. Olson, William J. Olson
PC, Vienna, Virginia; John I. Harris III, Schulman LeRoy &
Bennett PC, Nashville, Tennessee; for Amici Curiae Gun
Owners of California Inc., Gun Owners of America, Inc.,
Gun Owners Foundation, Heller Foundation, Tennessee
Firearms Association, Tennessee Firearms Foundation,
Virginia Citizens Defense League, Virginia Citizens
Defense Foundation, America’s Future Inc., U.S.
Constitutional Rights Legal Defense Fund, and Conservative
Legal Defense and Education Fund.
NGUYEN V. BONTA 5
OPINION
FORREST, Circuit Judge:
California has a “one-gun-a-month” law that prohibits
most people from buying more than one firearm in a 30-day
period. The district court held that this law violates the
Second Amendment. We affirm. California’s law is facially
unconstitutional because possession of multiple firearms and
the ability to acquire firearms through purchase without
meaningful constraints are protected by the Second
Amendment and California’s law is not supported by our
nation’s tradition of firearms regulation. N.Y. State Rifle &
Pistol Ass’n v. Bruen, 597 U.S. 1, 24 (2022).
BACKGROUND
The California Legislature enacted the one-gun-a-month
law in 1999. Originally, it was focused on concealable
handguns: “No person shall make an application to purchase
more than one pistol, revolver, or other firearm capable of
being concealed upon the person within any 30-day period.”
1999 Cal. Stat. 1759, 1767. Correspondingly, firearm
dealers were prohibited from delivering such weapons
“whenever the dealer is notified by the Department of Justice
that within the preceding 30-day period the purchaser has
made another application to purchase a pistol, revolver, or
other firearm capable of being concealed upon the person.”
Id. at 1769. California’s purpose in enacting these
restrictions was “to stop one gun purchaser from buying
several firearms and transferring a firearm to another person
who does not have the legal ability to buy a gun”—a process
known as a “straw transaction.” Hearing on Assemb. B. 202,
Assemb. Comm. on Pub. Safety, 1999−2000 Leg., Reg.
Sess. (Cal. March 16, 1999). It concluded that restricting
6 NGUYEN V. BONTA
how often an individual could buy a concealable firearm
would “curtail the illegal gun market, disarm criminals, and
save lives.” Id.
Over time, the one-gun-a-month restriction was
extended to more firearms. 2019 Cal. Stat. 6166. And by
2024, it applied to all firearms. 2022 Cal. Stat. 3358, 3370.
California Penal Code § 27535(a) currently states that
individuals may not apply “to purchase more than one
firearm within any 30-day period,” and § 27540(f) prohibits
a firearms dealer from delivering any firearm if the dealer is
notified that “the purchaser has made another application to
purchase a handgun, semiautomatic centerfire rifle,
completed frame or receiver, or firearm precursor part”
within the preceding 30-day period. Some individuals and
entities are exempt from this restriction, including law
enforcement, correctional facilities, and licensed private-
security companies; visual entertainment companies “whose
production by its nature involves the use of a firearm”;
licensed collectors; and individuals seeking to replace a lost
or stolen firearm. Cal. Penal Code § 27535(b).
Plaintiffs-Appellees are individuals who desire to
purchase more than one firearm a month, three organizations
whose members want to do the same, and two firearm
retailers and their respective owners who want to engage in
these transactions. They sued claiming that California’s one-
gun-a-month law facially violates the Second Amendment.
Applying Bruen, the district court granted summary
judgment for Plaintiffs and enjoined California from
enforcing its law. California timely appealed, and a motions
panel stayed the district court’s injunction pending appeal.
We reversed the stay after oral argument.
NGUYEN V. BONTA 7
DISCUSSION
We review the constitutionality of a statute de novo. Mai
v. United States, 952 F.3d 1106, 1112 (9th Cir. 2020). We
also review the legal conclusions supporting permanent
injunctions granted at summary judgment de novo. City &
County of San Francisco v. Garland, 42 F.4th 1078, 1084
(9th Cir. 2022). Because Plaintiffs assert a facial challenge,
“we consider only the text of the [statute].” Calvary Chapel
Bible Fellowship v. County of Riverside, 948 F.3d 1172,
1176 (9th Cir. 2020). Plaintiffs must establish “that no set of
circumstances exist under which the [law] would be valid.”
Moody v. NetChoice LLC, 603 U.S. 707, 723 (2024)
(alteration in original) (quoting United States v. Salerno, 481
U.S. 739, 745 (1987)); see also United States v. Rahimi, 602
U.S. 680, 693 (2024).
The Second Amendment guarantees that “the right of the
people to keep and bear Arms, shall not be infringed.” U.S.
Const. amend. II. This provision, coupled with the
Fourteenth Amendment, “protect[s] an individual right to
keep and bear arms for self-defense.” Bruen, 597 U.S. at 17;
see also District of Columbia v. Heller, 554 U.S. 570, 628–
30 (2008); McDonald v. City of Chicago, 561 U.S. 742, 767–
68, 791 (2010). The analysis of a Second Amendment
challenge is rooted in the constitutional text and in our
nation’s history and tradition of firearm regulation. Bruen,
597 U.S. at 24. We first ask whether “the Second
Amendment’s plain text” covers the regulated conduct at
issue. Id. If it does, “the Constitution presumptively protects
that conduct.” Id. That presumption can be overcome only if
“‘historical precedent’ from before, during, and even after
the founding evinces a comparable tradition of regulation.”
Id. at 27 (quoting Heller, 554 U.S. at 631).
8 NGUYEN V. BONTA
I. The Second Amendment
A.
To begin our analysis in this pre-enforcement context,
we first identify “the conduct the regulation prevents
plaintiffs from engaging in.” Doe v. Bonta, 101 F.4th 633,
639 (9th Cir. 2024). The district court identified the
regulated conduct as buying more than one firearm from a
licensed dealer in a 30-day period. The parties do not dispute
this framing. We likewise agree that this is “what the
plaintiffs want[] to do and what the challenged law
prevent[s] them from doing.” Id.
B.
Next, we consider whether the plain text of the Second
Amendment protects the regulated conduct just identified.
Bruen, 597 U.S. at 24. It is well established that the Second
Amendment’s guarantee of “the right of the people to keep
and bear Arms,” U.S. Const. amend. II, protects “the right of
law-abiding, responsible citizens to use arms in defense of
hearth and home.” Heller, 554 U.S. at 635; see also
McDonald, 561 U.S. at 780. This “core Second Amendment
right . . . ‘wouldn’t mean much’ without the ability to acquire
arms.” Teixeira v. County of Alameda, 873 F.3d 670, 677
(9th Cir. 2017) (en banc) (quoting Ezell v. City of Chicago,
651 F.3d 684, 704 (7th Cir. 2011), abrogated on other
grounds by Bruen, 597 U.S. 1). Thus, we have “consistently
held that the Second Amendment . . . ‘protects ancillary
rights necessary to the realization of the core right to possess
a firearm for self-defense.’” B&L Prods., Inc. v. Newsom,
104 F.4th 108, 118 (9th Cir. 2024) (quoting Teixeira, 873
F.3d at 677), cert. denied --- S. Ct. ---, 2025 WL 1211774
(2025). While we have not defined “the precise scope” of
protected ancillary rights, we have held “that the plain text
NGUYEN V. BONTA 9
of the Second Amendment only prohibits meaningful
constraints on the right to acquire firearms.” Id. (quoting
Teixeira, 873 F.3d at 678) (emphasis added).
To demonstrate this principle, we discuss two of our
prior cases. Teixeira concerned a zoning ordinance that
made it “virtually impossible to open a [new] gun store in
unincorporated [areas of] Alameda County.” 873 F.3d at
676. We nonetheless concluded that the ordinance was
permissible because “there were ten gun stores in Alameda
County” and buyers could purchase firearms at a sporting
goods store located “approximately 600 feet away from the
proposed site of [the plaintiff’s] planned store.” Id. at 679.
We stated that “the Second Amendment does not elevate
convenience and preference over all other considerations.”
Id. at 680. Similarly, B&L Productions concerned a
California law banning firearm sales on state property. 104
F.4th at 111. We explained that while “a ban on all sales of
a certain type of gun or ammunition in a region generally
implicates the Second Amendment, . . . a minor constraint
on the precise locations within a geographic area where one
can acquire firearms does not.” Id. at 119. And we upheld
the challenged law because “[m]erely eliminating one
environment where individuals may purchase guns does not
constitute a meaningful constraint on Second Amendment
rights when they can acquire the same firearms down the
street.” Id.
The laws we considered in Teixeira and B&L
Productions are plainly distinguishable from the one-gun-a-
month law here. Limiting where firearms may be sold, when
there are other reasonably available options, is a
significantly lesser interference with an individual’s ability
10 NGUYEN V. BONTA
to acquire (and therefore possess) firearms than banning the
purchase of more than one firearm in a 30-day period.1
California nonetheless argues that its law is
constitutional because (1) the Second Amendment does not
guarantee a right to possess multiple firearms and (2) even if
it did, restricting the frequency of purchase does not prevent
someone from acquiring multiple firearms. Both arguments
fail.
1.
California suggests that the Second Amendment only
guarantees a right to possess a single firearm, and that
Plaintiffs’ rights have not been infringed because they
already possess at least one firearm. California is wrong. The
Second Amendment protects the right of the people to “keep
and bear Arms,” plural. U.S. Const. amend. II (emphasis
added). This “guarantee[s] the individual right to possess
and carry weapons.” Heller, 554 U.S. at 592 (emphasis
added). And not only is “Arms” stated in the plural, but this
term refers to more than just guns. It includes other weapons
and instruments used for defense. See id. at 581. California’s
interpretation would mean that the Second Amendment only
protects possession of a single weapon of any kind. There is
no basis for interpreting the constitutional text in that way.
For these reasons, we easily conclude that the plain text
of the Second Amendment protects the right to possess
multiple firearms, and we are not alone. The D.C. Circuit has
held that limiting the number of firearms an individual can
purchase or register within a 30-day period interferes with
1
Effective January 1 of this year, even private firearm sales are subject
to the one-gun-a-month restriction (with limited exceptions). Cal. Penal
Code § 27535 (2025); see also 2023 Cal. Stat. 4449, 4450.
NGUYEN V. BONTA 11
“an individual’s undoubted constitutional right to keep arms
(plural) in his or her home.” Heller v. District of Columbia
(Heller III), 801 F.3d 264, 280 (D.C. Cir. 2015).
2.
California next argues that the conduct it regulates does
not fall within the protection of the Second Amendment
because restricting citizens from purchasing only one
firearm in a 30-day period does not prohibit them from
possessing multiple firearms. California primarily relies on
McRorey v. Garland, where the Fifth Circuit upheld a
federal law allowing gun dealers to delay a sale for up to ten
days to complete a background check. 99 F.4th 831, 839–40
(5th Cir. 2024). McRorey reasoned from Bruen’s statement
that background checks—not put to abusive means—are
presumptively valid, id. at 837, and concluded that a ten-day
delay to conduct a Congressionally-mandated background
check “does not qualify” as abusive, id. at 840. The McRorey
court also concluded that while the Second Amendment
prohibits regulations that act as de facto bans, thus extending
some “protection to acquisition,” id. at 838 n.18, “on its
face” it does not protect the right to “purchase” arms, id. at
838.
California’s reliance on McRorey is unavailing. First, we
have held that the Second Amendment does protect against
meaningful constraints on the acquisition of firearms
through purchase. See B&L Prods., 104 F.4th at 118. And if
the Second Amendment’s plain text protects the ability to
possess multiple arms, which we conclude that it does, then
it also protects the ability to acquire multiple arms. See id.
(“The right to keep arms, necessarily involves the right to
purchase them, . . . and to purchase and provide ammunition
12 NGUYEN V. BONTA
suitable for such arms . . . .” (quoting Andrews v. State, 50
Tenn. 165, 178 (1871))).
Second, we have also held that the Second Amendment
prohibits not just bans but any “meaningful constraints on
the right to acquire firearms.” Id. The delay in the federal
statute analyzed by McRorey served a presumptively valid
purpose. But with California’s one-gun-a-month law, delay
itself is the purpose. By categorically prohibiting citizens
from purchasing more than one firearm of any kind in a 30-
day period, California is infringing on citizens’ exercise of
their Second Amendment rights. See Infringement, Black’s
Law Dictionary (12th ed. 2024) (“An encroachment or
trespass on (a right, privilege, etc.).”).
We are not aware of any circumstance where
government may temporally meter the exercise of
constitutional rights in this manner. And we doubt anyone
would think government could limit citizens’ free-speech
right to one protest a month, their free-exercise right to one
worship service per month, or their right to be free from
unreasonable searches and seizures to apply only to one
search or arrest per month. We could go on. If the frequency
with which constitutional rights can be exercised could be
regulated in this manner without infringement, what would
limit government from deciding that a right need only be
available every six months or once a year or at any other
interval it chooses? California had no answer to this concern
at oral argument.
The point is that the Second Amendment is more robust
than California accepts. See Bruen, 597 U.S. at 70 (“The
constitutional right to bear arms . . . is not ‘a second-class
right, subject to an entirely different body of rules than the
other Bill of Rights guarantees.’” (quoting McDonald, 561
NGUYEN V. BONTA 13
U.S. at 780)). Its monthly metering of firearm purchases
meaningfully constrains the right to purchase and possess
firearms and is thus presumptively unconstitutional. U.S.
Const. amend. II; B&L Prods., 104 F.4th at 118–20.
II. History and Tradition
To overcome the presumption of invalidity, California
must demonstrate that its law is supported by our “historical
tradition of firearm regulation.” Bruen, 597 U.S. at 24. This
inquiry requires “reasoning by analogy.” Id. at 28. We
consider “whether the [challenged] law is ‘relevantly
similar’ to laws that our tradition is understood to permit,
‘apply[ing] faithfully the balance struck by the founding
generation to modern circumstances.’” Rahimi, 602 U.S. at
692 (alteration in original) (quoting Bruen, 597 U.S. at 29).
We are looking for a “historical analogue” to the challenged
regulation, not a “historical twin.” Bruen, 597 U.S. at 30.
“Why and how the regulation burdens the [Second
Amendment] right are central to this inquiry.” Rahimi, 602
U.S. at 692 (emphases added). If historical laws2 “regulated
firearm use to address particular problems, that [is] a strong
indicator that contemporary laws imposing similar
restrictions for similar reasons fall within a permissible
category of regulations.” Id. But if a modern law “regulates
arms-bearing for a permissible reason,” it nonetheless
violates the Second Amendment “if it does so to an extent
beyond what was done at the founding.” Id.
2
Although California “is bound to respect the right to keep and bear arms
because of the Fourteenth Amendment, not the Second [Amendment],”
Bruen, 597 U.S. at 37, we need not wade into the debate about whether
18th or 19th century historical analogues govern, id. at 38. California’s
regulation is unconstitutional based on the understandings of both eras.
14 NGUYEN V. BONTA
California argues that the history of firearms regulation
supports its one-gun-a-month law for two reasons. First, it
contends that we must take a “nuanced approach” in
analyzing history because the one-gun-a-month law targets
novel, unprecedented concerns. Second, it contends that the
one-gun-a-month law is consistent with the strong tradition
of restricting dangerous individuals from acquiring firearms.
We address each contention in turn.
A. Nuanced Approach
California’s “nuanced approach” argument comes from
Bruen. The Supreme Court acknowledged that the historical
analogues presented in that case and Heller were “relatively
simple to draw” but that “other cases implicating
unprecedented societal concerns or dramatic technological
changes may require a more nuanced approach.” Bruen, 597
U.S. at 27. It is unclear whether this passage created a
different standard from the otherwise applicable “relevantly
similar” standard, or whether it was a recognition that
analogical reasoning may be more challenging in some cases
where modern regulation addresses issues that could not
have been contemplated historically. See Rahimi, 602 U.S.
at 692 (defining Bruen’s historical-analogue standard as
“relevantly similar” without referencing a “nuanced
approach”). But we need not wrestle with this question here
because a nuanced approach, whatever it means, is not called
for in this case.
California argues that “governments during the founding
and Reconstruction simply did not have to confront the
social problems created by the immediate commercial
availability of firearms for large purchases.” It also asserts
that “large-scale firearms trafficking and straw purchasing”
were not problems during these eras because “firearms were
NGUYEN V. BONTA 15
made by hand, in a time consuming and laborious process.”
Although there were “manufacturing advances” by the time
the Fourteenth Amendment was passed, “existing
distribution networks still did not allow for the kinds of bulk
firearms purchases that are possible today.”
It cannot reasonably be disputed that firearm
manufacturing and availability are different today than they
were in our early history. But arms trafficking is not a new
problem. Early colonial and American laws prohibited
certain categories of individuals deemed dangerous from
possessing arms. For example, in 1619, colonial Virginia
made it illegal to “sell or give any Indians any piece, shot, or
powder, or any other arms offensive or defensive, upon pain
of being held a traitor to the colony and of being hanged as
soon as the fact is proved, without all redemption.” 1
Journals of the House of Burgesses of Virginia (H.R.
McIlwaine & John P. Kennedy, eds., 1905), reprinted in
Colonial Origins of the American Constitution: A
Documentary History 283, 287 (Donald S. Lutz ed., 1998).
Despite this prohibition, however, the Virginia colony
recognized in the 1670s that “though good lawes have been
made for prohibiting the tradeing with Indians for armes and
ammunition, yet greate quantities have beene yearely vended
amongst them.” 2 The Statutes at Large: Being a Collection
of All the Laws of Virginia from the First Session of the
Legislature, in the Year 1619, at 336 (William Waller
Hening ed., 1823).
Similarly, in the 1640s, the Massachusetts colony
recognized that despite prohibitions “against selling guns
and powder to the Indians, they are yet supplied by indirect
meanes.” 2 Records of the Governor and Company of the
Massachusetts Bay in New England (1642–1649), at 16
(Nathaniel B. Shurtleff, ed., 1853). Other colonies also
16 NGUYEN V. BONTA
adopted firearm restrictions that were of limited effect
“because of the difficulty of monitoring arms trading in early
America, [and] because such trading was highly profitable.”
Robert J. Spitzer, Gun Law History in the United States and
Second Amendment Rights, 80 L. & Contemp. Probs. 55, 58
(2017).
Concerns of illegal firearms sales prevailed beyond the
1600s and 1700s and into the Civil War era. See William S.
Dutton, Du Pont: One Hundred and Forty Years 92 (1949)
(noting that when southern states sought to arm themselves
through northern manufacturers, the Du Pont Company
instructed its agents “to sell not a pound of powder to buyers
who might ship it surreptitiously into seceding States”).
California’s expert stated that during the nineteenth century,
“black markets in stolen goods” were a problem and
“Americans were concerned about firearms being sold into
the wrong hands.” Additionally, we are unpersuaded by
California’s argument that the mass availability of firearms
is a new development. In another case, California argued that
“[t]he market revolution of the Jacksonian period (1828–
1854) led to radical advancements in firearms technology
and [the] wide availability of cheaper, deadlier, concealable
firearms.” See Defendants’ Memorandum of Points and
Authorities in Support of Motion for Summary Judgment at
15, Chavez v. Bonta, No. 3:19-cv-01226 (S.D. Cal. Mar. 15,
2024), ECF No. 132-1. Because the industrialized
production of guns can be traced back to the mid-nineteenth
century, it is not a “dramatic technological change[]”
requiring a nuanced approach. Bruen, 597 U.S. at 27.
In sum, the modern problems that California identifies as
justification for its one-gun-a-month law are perhaps
different in degree from past problems, but they are not
different in kind. Therefore, a nuanced approach is not
NGUYEN V. BONTA 17
warranted. Compare Worth v. Jacobson, 108 F.4th 677,
696–97 (8th Cir. 2024), cert. denied --- S. Ct. ---, 2025 WL
1151242 (2025) (rejecting Minnesota’s argument that a
nuanced approach applies where the nineteenth century
“market revolution” made handguns more accessible), with
Antonyuk v. James, 120 F.4th 941, 1026 (2d Cir. 2024)
(applying a nuanced approach to a regulation prohibiting
firearms in zoos because zoos did not exist at the founding).
B. Historical Regulations
California asserts that there are historical analogues that
imposed “relevantly similar” burdens as its one-gun-a-
month law for “relevantly similar” reasons. In assessing
historical evidence, “we do not isolate each historical
precursor and ask if it differs from the challenged regulation
in some way.” United States v. Perez-Garcia, 96 F.4th 1166,
1191 (9th Cir. 2024). We “ascertain whether the new law is
‘relevantly similar’ to laws that our tradition is understood
to permit” by looking at the why and how of the historical
regulations. Rahimi, 602 U.S. at 692 (quoting Bruen, 597
U.S. at 29). Here, we first describe the historical record
presented and then analyze whether it supports California’s
one-gun-a-month law.
1.
We have analyzed some of the relevant historical
evidence in prior cases. In Teixeira, we recognized that “[i]n
response to the threat posed by Indian tribes, the colonies of
Massachusetts, Connecticut, Maryland, and Virginia all
passed laws in the first half of the seventeenth century
making it a crime to sell, give, or otherwise deliver firearms
18 NGUYEN V. BONTA
or ammunition to Indians.” 3 873 F.3d at 685. California
highlights a 1646 law in the Connecticut colony that “banned
the sale of firearms by its residents outside the colony.” Id.
(citing 1 The Public Records of the Colony of Connecticut
138–39, 145–46 (J. Hammond Trumbull ed., 1850)). But this
law was more akin to a licensing regime than an outright ban
because residents could obtain a license to sell arms outside
the “confederate jurisdictions,” which included
Massachusetts, Connecticut, New Plymouth, and New
Haven. See Trumbull, supra, at 145 & n.*; 2 John Winthrop,
The History of New England from 1630 to 1649, at 101
(James Savage ed., 1826) (describing the formation of this
colonial confederation).
Virginia also had a law stating that “any person found
within an Indian town or more than three miles from an
English plantation with arms or ammunition above and
beyond what he would need for personal use would be guilty
of the crime of selling arms to Indians, even if he was not
actually bartering, selling, or otherwise engaging with the
Indians.” Teixeira, 873 F.3d at 685 (citing 2 Hening, supra,
at 336–37). But this apparently was narrowed or nullified
around 1676, by which point there was legislation stating
that “any of his majesties loyall subjects inhabiting this
colony” had liberty to sell arms, and “Indians of the Easterne
shore have like and equall liberty of trade or otherwayes with
3
Plaintiffs fault California for relying on “bigoted or racist” laws that
would be considered illegal in modern times. While many of the
historical laws identified may be unconstitutional today, they
nonetheless are instructive on the historical understanding of gun rights
and regulation, and we have previously relied on them. See Teixeira, 873
F.3d at 685. But see Rahimi, 602 U.S. at 775–76 (Thomas, J., dissenting)
(referring to these laws as “cautionary tales”).
NGUYEN V. BONTA 19
any other our ffriends and neighbouring Indians.”4 2 Hening,
supra, at 403; see also id. at 411–12 (further expanding the
arms trade with Native Americans).
While some colonies passed blanket restrictions on
trading arms with Indian tribes in the seventeenth century,
many narrowed these restrictions in the early eighteenth
century to prohibit only private individuals from engaging in
such trade. For example, a 1763 Pennsylvania law “banned
unlicensed private citizens from exchanging guns,
gunpowder, shot, bullets, lead, or other warlike stores to
Native peoples.” And other colonial laws only banned
citizens from selling Indians certain classes of firearms.
California identifies licensing regimes implemented
during the Reconstruction era and late nineteenth century as
evidence of states restricting who could carry firearms.5 And
it points to other late nineteenth century laws prohibiting
intoxicated individuals from acquiring firearms “because of
the concern for impulsive firearm violence.” See An Act to
4
California also points to a 1652 New York law that outlawed “Illegal
Trade in Powder, Lead, and Guns by ‘Private Persons.’” See Ordinance
of the Director and Council of New Netherland against Illegal Trade in
Powder, Lead, and Guns in New Netherland by Private Persons (1652),
reprinted in Laws & Ordinances of New Netherland (1638–1674), at 128
(E.B. O’Callaghan ed., 1867). Because the exact text of this law is
unavailable, we are unable to determine if this is a sufficient historical
analogue. See id. (noting that the ordinance “is not among the Records,
and seems, indeed, not to have been very strictly enforced”).
5
See, e.g., Ordinances of Jersey City Passed by the Board of Alderman
Since May 1, 1871, at 86–87 (1874); Ordinances of the Mayor, Alderman
and Commonalty of the City of New York 214−16 (Elliott F. Shepard &
Ebenezer B. Shafer eds., 1881); Charter & Ordinances of the City of
Sacramento 173 (R.M. Clarken ed., 1896); Scandia, Kan., Ordinance No.
79 (1894), reprinted in 23 Scandia J. 1, Jan. 5, 1894, at 8.
20 NGUYEN V. BONTA
Prevent the Carrying of Concealed Weapons and for Other
Purposes, 1878 Miss. Laws 175, § 2 (“It shall not be lawful
for any person to sell to any . . . person intoxicated, knowing
him to be . . . in a state of intoxication, any [deadly
weapon]”); 2 General Statutes of the State of Kansas 353
(W.C. Webb ed., 1897) (“[A]ny person under the influence
of intoxicating drink . . . found . . . carrying on his person a
pistol, bowie-knife, dirk, or other deadly weapon” is subject
to a misdemeanor charge).
There are also examples of states requiring dealers to
register and track firearm sales, which California relies on as
evidence that there is a historical tradition of legislatures
“controlling and tracing the sale of firearms.” In 1881,
Illinois required every dealer to keep a register of all sales of
deadly weapons—which included “any pistol, revolver,
derringer, bowie knife, dirk or other deadly weapon of like
character, capable of being secreted upon the person.” Act
of April 16, 1881, § 1–2, 1881 Ill. Laws 73. In 1892,
Congress passed a law requiring weapons dealers in the
District of Columbia to maintain a “written register of the
name and residence of every purchaser, barterer, hirer,
borrower, or donee of any such weapon or weapons.” Act of
July 13, 1892, Pub. L. No. 52-159, § 5, 27 Stat. 116, 117.
California notes examples of categorical bans of certain
types of weapons to establish a history of legislatures
banning firearms to “prevent them from ending up in
criminal hands.” In 1837, Georgia passed a statute banning
the sale of certain types of knives, “pistols, dirks, sword
canes, spears, [etc.].” 1837 Ga. Laws 90, 90–91. The
following year, Tennessee passed a similar statute banning
knives like the Bowie knife and certain pocket pistols. 1838
Tenn. 200, 200–01. But there is no example of a categorical
ban on all types of firearms. For example, as California’s
NGUYEN V. BONTA 21
expert observed, Tennessee permitted the sale of “army/navy
pistols” and Georgia permitted the sale of “horseman’s
pistols.”
Finally, California relies on various licensing and taxing
regulations to demonstrate a history of limiting the
immediate availability and use of weapons and ammunition
for private, everyday purposes. See e.g., 1838 Fla. Terr.
Laws 36, 36 (requiring venders of “dirks, pocket pistols,
sword canes, or bowie knives” to pay a tax before selling
these items); 1893 S.C. Acts 426, 426–27 (granting counties
ability to issue licenses to venders to sell pistols). In the
Connecticut colony, external exports of gunpowder required
special licenses. 15 Public Records of the Colony of
Connecticut 191 (Charles J. Hoadly ed., 1890). And
California suggests that, like its one-gun-a-month law, some
states taxed the purchaser as opposed to the vendor based on
the quantity of arms owned. See 1866 Ga. Law 27, 27–28
(authorizing a special tax on every dog or firearm owned
above three on plantations in three counties); 1867 Miss.
Laws 327, 327–38 (placing a tax on firearms possessed
within one county); 7 Ala. Code § 434(10) (1867) (taxing
privately owned pistols). These laws did not limit the
number of firearms a law-abiding citizen could acquire.
2.
Turning to whether California’s one-gun-a-month law is
“relevantly similar” to the historical landscape just
described, we easily conclude that it is not. Many of
California’s proposed historical analogues impose no burden
on an individual’s ability to acquire, keep, or bear arms. For
example, the laws requiring dealers to register and track
sales do not burden the purchaser. See Doe, 101 F.4th at 639.
It is also unclear what burden several of the identified tax
22 NGUYEN V. BONTA
regulations imposed on purchasers because they targeted
only sellers. While California’s law also regulates sellers,
there is no question that its focus is preventing purchasers
from buying multiple firearms at one time.
Additionally, many of California’s analogues imposed
more limited burdens than the one-gun-a-month law. On the
one hand, some of the historical regulations prohibited only
a specific group considered to be dangerous from acquiring
or possessing firearms—laws targeting Indians, foreigners,
and the intoxicated. On the other hand, many analogues
restricted only a subset of arms. But California’s law applies
to all firearms and nearly all individuals. California
acknowledges, as it must, that not all Californians are
dangerous, but it contends that laws preventing dangerous
individuals from acquiring firearms nonetheless imposed a
similar burden on firearm sellers by limiting the available
buyers. This argument ignores that California’s law
primarily impedes nearly all individuals from acquiring
multiple firearms. Cf. Teixeira, 873 F.3d at 684 (holding that
there is no “freestanding right” to sell a firearm if “divorced
from the citizenry’s ability to obtain and use guns”).
As to the licensing regimes identified, we are
unpersuaded that they support California’s categorical 30-
day ban on purchasing more than one firearm. Requiring a
law-abiding citizen to apply or qualify for a license as a
barrier to entry is a different (and lesser) burden than
prohibiting an individual from engaging in the regulated
conduct all together for a 30-day period. Because the one-
gun-a-month law establishes no exemption or pathway by
which a law-abiding citizen can purchase more than one
firearm within a 30-day period, we reject California’s
attempt to draw a comparison to the licensing analogues.
NGUYEN V. BONTA 23
We agree with the district court that the historical law
presenting the closest analogue with relevant similarities is
a law from the Virginia colony that prohibited the “carrying
of more than one gun and ten charges of powder when
traveling near any Native town or more than three miles
away from an English plantation.” Nguyen v. Bonta, 720 F.
Supp. 3d 921, 938 (S.D. Cal. 2024); see also Teixeira, 873
F.3d at 685. As the district court aptly noted, “[t]his law
imposes both a quantity limitation (carrying more than one
gun and ten charges of powder) as well as a temporal
limitation (when traveling near any Native town or three
miles away from an English plantation).” Nguyen, 720 F.
Supp. 3d at 938. But there remain important differences.
This law did not burden a citizen’s ability to acquire multiple
firearms within a specific period. It burdened only how many
firearms a person could carry in a defined location. This
limitation has different implications for the right protected
by the Second Amendment—preservation of citizens’ ability
to defend themselves—than California’s one-gun-a-month
law. Thus, we conclude it is not similar enough to support
California’s law. But even if we were to conclude this
analogue is “relevantly similar,” one tree does not make a
forest. Perez-Garcia, 96 F.4th at 1191 (emphasizing the
court’s responsibility to “examine the historical evidence as
a whole”).
It is also worth noting that the Virginia colony enacted
this law 100 years before the founding, and the restriction
seemingly only lasted a few years given that unlimited arms
trading for Virginians and certain natives increased in 1676.
See 2 Hening, supra, at 403, 411–12. By the founding era,
the historical record suggests that it was common for
Americans to “carry two, four, or even six single shot pistols
on their belt” and that “pistols were often sold . . . in pairs.”
24 NGUYEN V. BONTA
Clayton E. Cramer & Joseph Edward Olson, Pistols, Crime,
and Public: Safety in Early America, 44 Willamette L. Rev.
699, 719 (2008).
Because the historical record makes clear that
California’s one-gun-a-month law is not relevantly similar
to our tradition in how it regulates firearms, we need not go
any further. Rahimi, 602 U.S. at 692.
*****
The Second Amendment expressly protects the right to
possess multiple arms. It also protects against meaningful
constraints on the right to acquire arms because otherwise
the right to “keep and bear” would be hollow. And while
Bruen does not require a “historical twin” for a modern
firearm regulation to pass muster, 597 U.S. at 30, here the
historical record does not even establish a historical cousin
for California’s one-gun-a-month law.
AFFIRMED.
OWENS, Circuit Judge, concurring:
I concur fully in the majority opinion. I write separately
to note that our opinion only concerns California’s “one-
gun-a-month” law. It does not address other means of
restricting bulk and straw purchasing of firearms, which our
nation’s tradition of firearm regulation may support.
Plain English Summary
FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT MICHELLE NGUYEN; DOMINIC No.
Key Points
01FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT MICHELLE NGUYEN; DOMINIC No.
02COLLETTI; JOHN PHILLIPS; 3:20-cv-02470- PWGG, LP; DARIN PRINCE; WQH-MMP NORTH COUNTY SHOOTING CENTER, INC.; FIREARMS POLICY COALITION, INC.; SAN OPINION DIEGO COUNTY GUN OWNERS POLITICAL ACTION COMMITTEE; SECOND AMENDMENT FOUNDATION, Plaint
03ROB BONTA, in his official capacity as Attorney General of the State of California; ALLISON MENDOZA, in her capacity as the Director of the Department of Justice Bureau of Firearms, Defendants - Appellants.
04BONTA Argued and Submitted August 14, 2024 Submission Vacated February 21, 2025 Resubmitted June 20, 2025 Pasadena, California Filed June 20, 2025 Before: John B.
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FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT MICHELLE NGUYEN; DOMINIC No.
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