The Supreme Court issued a unanimous 9-0 ruling on June 18 limiting federal prosecution of marijuana users under the ban on drug users possessing firearms, while a sweeping 34-rule ATF regulatory overhaul enters its final days of public comment. State-level changes in Rhode Island and Colorado are also approaching fast, with transfer implications for FFLs and buyers in those states.

Today’s Headlines

• SCOTUS — United States v. Hemani (Decided June 18): In a 9-0 ruling authored by Justice Gorsuch, the Court narrowed application of 18 U.S.C. §922(g)(3), making it harder to prosecute casual marijuana users for illegal gun possession, though the law itself remains on the books. Source: cnbc.com
• SCOTUS — Wolford v. Lopez (Decision Imminent): A ruling is expected by late June on whether Hawaii and similar states may ban licensed concealed carry holders from carrying on private property open to the public unless the owner affirmatively permits it; the outcome will affect laws in Hawaii, California, and other post-Bruen states. Source: scotusblog.com
• ATF — 34-Rule Regulatory Overhaul (Comment Deadline June 28): The ATF’s sweeping proposed rulemaking package includes elimination of the CLEO notification requirement for NFA applicants, joint spousal NFA registration, simplified interstate NFA transport (eliminating Form 5320.20 for trips under 365 days), and formal rescission of the 2023 pistol brace rule. Source: atf.gov
• Rhode Island — Assault Weapons Ban Effective July 1: S 359, signed by Governor McKee, takes effect in 12 days, prohibiting manufacture, sale, purchase, and possession of covered firearms for new buyers; grandfathered pre-ban owners are exempt. Source: usconcealedcarry.com
• Colorado — Semi-Auto Safety Course Requirement Effective August 1: Buyers of most semi-automatic firearms with detachable magazines must obtain a Firearms Safety Course Eligibility Card beginning August 1, directly affecting in-state transfer transactions. Source: leg.colorado.gov
• New York — Convertible Pistols and 3D-Print Files Banned: Governor Hochul signed S.9005c, banning so-called convertible pistols and, notably, criminalizing possession of digital CAD files used for 3D-printed firearms; implementation guidance is pending. Source: thegunmag.com

What This Means for Gun Owners

The Hemani ruling does not eliminate §922(g)(3) but raises the bar for prosecution, meaning FFLs should still follow standard Form 4473 procedures regarding drug use disclosures. Rhode Island FFLs and buyers have 12 days to complete any covered transfers before the July 1 cutoff; Colorado dealers should begin preparing compliance processes for the August 1 eligibility card requirement. NFA applicants and owners should consider submitting comments on the ATF’s proposed changes — including the interstate transport simplification — before the June 28 deadline at Regulations.gov.

Key Dates to Watch

• June 28, 2026: ATF 34-rule NPRM public comment period closes (Regulations.gov)
• Late June 2026: Wolford v. Lopez SCOTUS decision expected
• July 1, 2026: Rhode Island Assault Weapons Ban takes effect
• August 1, 2026: Colorado semi-auto Firearms Safety Course Eligibility Card requirement takes effect

Sources

• cnbc.com — Supreme Court limits gun ban for drug users
• scotusblog.com — Wolford v. Lopez case page
• atf.gov — ATF 34-Rule Rulemaking Package
• thetrace.org — ATF regulatory overhaul overview
• usconcealedcarry.com — 2026 gun law changes by state
• leg.colorado.gov — Colorado SB25-003
• thegunmag.com — New York S.9005c signed

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