Garland v. VanDerStok
Whether ATF's rule classifying weapon parts kits and partially complete frames or receivers as regulated 'firearms' under the Gun Control Act of 1968 exceeds the agency's statutory authority.
Background & Facts
The Gun Control Act of 1968 requires licensed firearms manufacturers and dealers to mark guns with serial numbers, maintain sales records, and conduct background checks before transferring a firearm. The statute defines 'firearm' to include (A) weapons that can be 'readily converted' to expel a projectile by explosive action, and (B) the 'frame or receiver' of such a weapon — the principal structural housing of a gun's firing components. These requirements had been followed by the conventional firearms industry for over 50 years.
In recent years, companies began selling 'ghost gun' kits — collections of parts including nearly-complete polymer frames or receivers that buyers could assemble into untraceable, unserialized handguns in under an hour using common tools. Manufacturers marketed them as 'ridiculously easy to assemble' and 'dummy-proof.' Because the frames had one or two holes not yet drilled, sellers argued the kits were not 'firearms' requiring background checks or serial numbers. Ghost gun recoveries at crime scenes rose 1,000% between 2017 and 2021.
ATF responded with a 2022 rule clarifying that weapon parts kits readily convertible into functional guns, and partially complete frames or receivers missing only minor finishing work, qualify as regulated firearms. Companies selling these kits sued, arguing ATF exceeded its statutory authority. The Fifth Circuit struck down the rule, and the Supreme Court granted certiorari.
Why This Case Matters
This case determines whether ghost guns — untraceable firearms lacking serial numbers — must comply with federal background check and record-keeping requirements, with direct public safety consequences. If respondents prevail, any manufacturer could evade the entire regulatory framework of the Gun Control Act simply by leaving a single hole undrilled, potentially converting all guns into ghost guns. ATF estimated its rule put 42 of 43 unlicensed ghost-gun manufacturers out of business.
Beyond gun policy, the case tests the limits of administrative agency authority: when a decades-old statute's language covers a new evasion tactic not contemplated in 1968, whether an agency may apply existing statutory text to the new problem or must wait for Congress to act. The Court's answer will have broad implications for how agencies respond to technological changes that exploit gaps in existing regulatory frameworks.
The Arguments
ATF's rule faithfully applies the Gun Control Act's plain text, which covers weapons 'readily converted' into functional firearms and undefined terms like 'frame or receiver' that by ordinary meaning encompass nearly-complete components. The rule codifies over 50 years of consistent regulatory practice, and respondents' interpretation would allow any manufacturer to nullify the Act's background check, serial number, and record-keeping requirements by leaving a single hole undrilled.
- Weapon parts kits have no other conceivable use than becoming functional firearms and are designed for novice assembly in under an hour with common tools — falling squarely within subsection (A)'s 'readily converted' language.
- The ordinary meaning of 'frame or receiver' in subsection (B) covers nearly-complete components missing only minor finishing work, just as a bicycle missing pedals is still called a bicycle.
- ATF classification letters dating to 1978 applied the same 'readily convertible' standard; the only new element in the 2022 rule is counting jigs (assembly guides) as a factor that speeds the conversion process.
- Criminal willfulness requirements under 18 U.S.C. § 924(a)(1)(D) protect good-faith manufacturers from prosecution, and sellers can seek pre-enforcement classification rulings from ATF with de novo judicial review if dissatisfied.
Key Exchanges with Justices
Justice Alito
“Using physical props, Justice Alito asked whether scattered ingredients — a blank pad and pen, or eggs and vegetables — constitute the finished product (a grocery list or omelet) before assembly, pressing whether the government's theory that components constitute a 'weapon' would sweep in ordinary objects.”
Prelogar distinguished weapon parts kits from random ingredients by arguing the kits have no other conceivable use, are specifically designed as instruments of combat, and that even respondents concede a fully disassembled gun remains a regulated weapon.
Justice Gorsuch
“Justice Gorsuch pressed whether 'frame or receiver' in subsection (B) — which lacks the explicit 'readily converted' language of subsection (A) — should be read as an 'artifact noun' covering incomplete items, and whether that reading would improperly apply to every noun throughout the entire U.S. Code.”
Prelogar argued that surrounding statutory context — including subsections (A), (C), and (D) — supports reading 'frame or receiver' as an artifact noun in this specific statute without making every noun in federal law operate the same way.
Justice Kavanaugh
“Justice Kavanaugh asked what protections exist for a seller who genuinely believes in good faith that their product is not a regulated firearm but nonetheless fails to conduct a background check — could they face criminal charges?”
Prelogar confirmed that the willfulness standard under § 924(a)(1)(D) protects good-faith actors from criminal liability for failing to serialize or license firearms, and emphasized the government would not prosecute sellers acting in good faith without knowledge of wrongdoing.
ATF exceeded its statutory authority in two ways: it expanded 'frame or receiver' in subsection (B) to include items that can be 'readily converted' into one — language Congress deliberately omitted from that provision — and it expanded 'firearm' in subsection (A) to cover collections of parts that are not weapons and lack a frame or receiver. Compliance with a statute is not circumvention of it.
- Congress used 'readily converted' language explicitly in subsection (A) and in provisions covering machine guns and destructive devices, but deliberately omitted it from subsection (B)'s 'frame or receiver' definition, making it improper to imply that language there.
- ATF's own 2021 court filing stated that 'an unfinished frame or receiver does not meet the statutory definition of firearm simply because it can readily be converted into a frame or receiver' — the exact standard ATF now adopts, demonstrating a genuine break in agency practice.
- The prior 'critical machining operations' test — asking whether key manufacturing steps for a frame's functional components had been completed — better fits the statute and avoids the rule's logical flaw: if drilling one hole triggers regulation, the same logic would make semi-automatic receivers into machine gun receivers.
- The ghost gun market collapsed after the rule took effect, showing these products primarily served buyers seeking untraceable weapons; any legitimate hobbyist market can continue under background check compliance.
Key Exchanges with Justices
Chief Justice Roberts
“Chief Justice Roberts asked what legitimate purpose is served by selling a receiver with holes left undrilled, expressing skepticism that drilling one or two holes provides the kind of satisfying 'building' experience that justifies a hobbyist market.”
Patterson's defense of the hobbyist rationale was unpersuasive, reinforcing the government's argument that the primary market for these kits was buyers seeking untraceable guns rather than gun-building enthusiasts.
Justice Sotomayor
“Justice Sotomayor pressed Patterson on why, since respondents concede some standard is needed to determine when an unfinished item becomes a regulated 'frame or receiver,' ATF's 'readily convertible' test exceeds its authority rather than simply being an alternative way to reach the same regulatory result.”
This exposed the difficulty of respondents' position: once they concede an incomplete item can qualify as a frame or receiver, they must show the agency's chosen metric is statutorily prohibited — not merely a different policy judgment within the agency's discretion.
Justice Barrett
“Justice Barrett questioned whether respondents' preferred 'critical machining operations' test actually comes from the statute's text, or whether it is an extrastatutory standard that ATF and the industry developed through years of practice.”
Patterson's acknowledgment that the test derives from industry practice rather than statutory text undermined the argument that ATF's 'readily convertible' standard is uniquely unauthorized, since respondents' preferred alternative is equally a judge- and agency-made creation.
Precedent Cases Cited
Abramski v. United States
573 U.S. 169
Both sides invoked Abramski: respondents cited it for the proposition that the Gun Control Act does not pursue its goals 'to the nth degree,' while the government cited it for the anti-circumvention principle that interpretations rendering the Act's core requirements meaningless should be rejected.
INS v. National Center for Immigrants' Rights
502 U.S. 183
The government relied on this case for the facial challenge standard it urged the Court to apply, arguing that a challenger cannot defeat a regulation by pointing to marginal applications that might be impermissible — the regulation's core standards must themselves contradict the statute.
Reno v. Flores
507 U.S. 292
Justice Sotomayor cited this case for its stricter facial challenge standard — that a challenger must show 'no set of circumstances exists under which the regulation would be valid' — noting this even more demanding test would also be impossible for respondents to satisfy.
Washington State Grange v. Washington State Republican Party
552 U.S. 442
Justice Sotomayor referenced the 'plainly legitimate sweep' standard — that possible impermissible applications cannot render a rule facially invalid so long as the rule has a substantial range of permissible applications — as an intermediate standard the ATF rule would also satisfy.
Loper Bright Enterprises v. Raimondo
Justice Jackson referenced Loper in questioning whether the case should be framed as the Court independently deciding what qualifies as a firearm, noting that Loper recognized Congress sometimes delegates authority to agencies to make specific regulatory calls within a defined statutory category.
The Emily and the Caroline
22 U.S. 381
General Prelogar cited this early case in rebuttal for the principle that courts need not interpret a statute in a self-defeating manner when a plausible alternative construction exists, arguing respondents' reading would let any manufacturer evade the Gun Control Act through a trivial workaround.
United States v. Stewart
The government cited Stewart as pre-existing judicial precedent establishing that weapon parts kits — in that case, a kit for constructing an Uzi-style firearm — can constitute regulated firearms, showing ATF's rule codifies established case law rather than creating a novel regulatory category.
United States v. Wick
The government cited Wick alongside Stewart as another example of pre-rule case law treating weapon parts kits as regulated firearms, reinforcing that the ATF rule's approach has judicial support predating the modern ghost gun era.