With two major Supreme Court decisions expected before June 30, federal firearms law is at a critical inflection point. Meanwhile, the ATF’s sweeping 34-rule reform package continues to work through regulatory channels, with a key comment deadline approaching at month’s end.

Today’s Headlines

• SCOTUS Watch – Drug Users & Firearms: A decision in United States v. Hemani (No. 24-1234) — testing whether the federal ban on firearm possession by unlawful drug users violates the Second Amendment — is expected by June 25–30, 2026. Source: scotusblog.com
• SCOTUS Watch – Concealed Carry in Private Businesses: Wolford v. Lopez, argued January 20, 2026, asks whether concealed carry permit holders may enter publicly accessible private properties without notifying owners; a ruling is expected before the term closes. Source: constitutioncenter.org
• ATF – 34-Rule Reform Package: The ATF’s April 29 regulatory overhaul — the largest in agency history — covers recordkeeping modernization, FFL operations, Form 4473 electronic filing, and rescission of the 2023 pistol brace rule. Source: wiley.law
• ATF – Narrowing “Unlawful Drug User” Definition: A proposed rule would limit the §922(g)(3) prohibition to persons actively impaired, convicted within 12 months, or clinically dependent within 12 months — replacing the broader current standard. The comment period closes June 30, 2026. Source: gunsandgadgetsdaily.com
• 9th Circuit – Silencers Not Protected by Second Amendment: In United States v. DeBorba (June 3, 2026), the Ninth Circuit held silencers fall outside the Second Amendment’s plain-text protection, leaving NFA registration requirements for suppressors intact despite the recent tax stamp elimination. Source: everytownlaw.org
• 5th Circuit – Child Support & Firearm Bans: SCOTUS denied cert on June 4, leaving intact the Fifth Circuit’s ruling that the government cannot impose a lifetime firearms ban based solely on non-violent, debt-like offenses such as failure to pay child support. Source: thegunmag.com
• Arizona – Lost & Stolen Reporting Now Required: Effective June 1, 2026, Arizona firearm owners must report lost or stolen firearms to local law enforcement within 24 hours or face a potential misdemeanor charge.

What This Means for Gun Owners

The imminent Hemani decision could directly affect transfer eligibility determinations for any buyer who uses cannabis or other controlled substances, regardless of state legality. FFLs conducting transfers should monitor that ruling closely, as it may alter how prohibited-person status is assessed on Form 4473. The ATF’s proposed narrowing of the “unlawful drug user” definition runs parallel to that case and remains open for public comment through June 30. Arizona residents completing transfers should also be aware of the new lost-and-stolen reporting obligation now in effect.

Key Dates to Watch

• June 25–30, 2026: Expected SCOTUS decision in United States v. Hemani (drug users and firearms possession)
• By June 30, 2026: Expected SCOTUS decision in Wolford v. Lopez (concealed carry in private businesses)
• June 30, 2026: Comment period closes on ATF proposed rule narrowing §922(g)(3) “unlawful drug user” definition

Sources

• scotusblog.com — United States v. Hemani
• wiley.law — ATF Historic Regulatory Reform Package
• gunsandgadgetsdaily.com — DOJ/ATF Rules April 2026
• everytownlaw.org — Recent Decisions Tracker
• thegunmag.com — Grassroots Judicial Report, June 10, 2026

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