Last updated October 2026 · By Nick Hall, tracks federal gun law and ATF dealer rules for USA Gun Shop readers
Quick take: The Justice Department has asked the Fifth Circuit to throw out the long-running challenge to the federal ban on dealer handgun sales to 18-to-20-year-olds, arguing the case is moot because it “will not enforce the challenged provisions against anyone, anywhere”. That is an argument in a brief, not a ruling and not a repeal. The statute and the ATF regulation still say 21, and no ATF notice to dealers has been found as of October 8, 2026.
- What happened: On October 5, 2026, DOJ filed a 34-page brief in Firearms Policy Coalition v. ATF asking the Fifth Circuit to dismiss the appeal as moot and, failing that, to refuse a wider injunction.
- Why it matters: DOJ is now using its September 17 Office of Legal Counsel opinion in court as the reason the plaintiffs no longer need a judgment.
- What’s next: The Fifth Circuit has not ruled, and the plaintiffs had filed no response on the docket as of October 8, 2026.
- Who to watch: ATF, whose regulation at 27 CFR 478.99(b) still bars a licensed dealer from selling a handgun to anyone under 21.
Most stories about DOJ declining to enforce a gun law are either a press release with nothing behind it or a court order with a case number on it. This one is a third thing: a promise made inside a brief, offered as the reason a court should stop short of ordering anything. We pulled the docket and read all 34 pages so you don’t have to.
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Table of Contents
What the DOJ Brief in the Under-21 Handgun Case Says
The filing is entry 53 on the Fifth Circuit docket in Firearms Policy Coalition v. ATF, case 26-30154, stamped filed October 5, 2026. It is signed by Steven Hazel of the Civil Division’s Appellate Staff, under Assistant Attorney General Brett Shumate.
The brief makes one argument first and loudest: “The Department of Justice’s determination that it will not enforce the challenged provisions against anyone, anywhere, demonstrates that there is no longer a live controversy.”
The foundation is the September 17 Office of Legal Counsel opinion we covered in our report on the DOJ opinion. It concluded that sections 922(b)(1) and (c)(1) of Title 18 “may not be enforced to impose criminal penalties on dealers who sell handguns” to law-abiding adults aged 18 to 20. DOJ now tells the court that the opinion “eliminates any prospect that plaintiffs or their members will be subject to enforcement action”.
The ask is short. “For the foregoing reasons, this appeal should be dismissed as moot.” If the court disagrees, DOJ wants it to “reject plaintiffs’ request to expand the permanent injunction”, and it adds that “oral argument is unnecessary”.
The same day, DOJ moved to drop its own cross-appeal. That motion says the plaintiffs consent.
What Is New Since the OLC Opinion
In September the news was an opinion, which is legal advice from DOJ’s own lawyers to the Attorney General. This is that advice being used in a live appeal, as a reason for a court to close the file without deciding anything.
The wording moved too. The OLC opinion speaks of criminal penalties on dealers. The brief says the provisions will not be enforced “against anyone, anywhere”, and that “there is no imminent risk that the government will enforce those restrictions against anyone, including plaintiffs and their members”.
That phrase has a history. The plaintiffs’ own June brief quotes the Supreme Court’s 2025 Trump v. CASA decision on the kind of order it took off the table: “A universal injunction prohibits the Government from enforcing the law against anyone, anywhere.” DOJ is offering by policy the very thing its brief says the Supreme Court prohibited courts from ordering.
A policy and an order are different animals. The first lasts as long as the people who wrote it want it to.
How Reese Led to a Three-State Injunction
The suit was filed on November 6, 2020 by Firearms Policy Coalition, the Second Amendment Foundation and the Louisiana Shooting Association, joined by young adult members. On January 30, 2025, a Fifth Circuit panel held in Reese v. ATF that the two provisions “are unconstitutional in light of our Nation’s historic tradition of firearm regulation.” Judge Edith Jones wrote the opinion, and the government did not ask the Supreme Court to review it.
Winning the ruling was not the same as getting relief. On January 27, 2026, Judge Robert Summerhays of the Western District of Louisiana declared the provisions unconstitutional and barred enforcement, but only inside the Fifth Circuit (Mississippi, Louisiana and Texas). It covers the plaintiffs and “anyone who is a member of one or more of the Plaintiffs as of the date of entry of this judgment.”
The three groups appealed, arguing that the district court should have protected every one of their 18-to-20-year-old members in every state, including people who join after the judgment, and that the government had spent the remand trying to turn the Reese win into “a victory in name only” by fighting over the remedy.
Inside those three states, DOJ’s brief says the Reese precedent already means “even non-parties to this litigation have faced no threat of prosecution under the provisions challenged here within this Circuit.” It is the same court whose ruling against the federal interstate handgun sales ban we covered in September.
What the Plaintiffs Want Instead
The plaintiffs had not answered the mootness argument on the docket as of October 8, 2026. Their opening brief was filed on June 22, almost three months before the OLC opinion existed. So nobody can say yet, from the record, whether they will fight dismissal.
What their filings do show is what they were after: an injunction covering all of their 18-to-20-year-old members nationwide. Their June brief warned that because the government never took Reese to the Supreme Court, “it can continue to enforce and defend the law across the rest of the country.”
When DOJ asked for more time in August, the plaintiffs objected on the record: “Unnecessary delay in the resolution of this appeal unfairly prolongs the deprivation of those members’ rights.” Then on September 17, the date on the OLC opinion, DOJ asked for two more weeks, unopposed, to discuss “potential paths forward that would render further litigation in this court unnecessary”. No settlement is on the docket. The brief is what arrived instead.
Mootness has a known weak spot, and DOJ’s brief spends pages on it: a defendant who stops voluntarily can start again. DOJ answers that treating an OLC opinion as “litigation posturing” would be extraordinary, and that “there is no reasonable prospect that the challenged conduct will recur”.
But an OLC opinion is not a statute, and a later administration can withdraw it. A court judgment does not change with the Attorney General.
What a Gun Dealer Can Do Today
Here is the part that matters at the counter. Nothing in the brief tells a licensed dealer it may sell a handgun to a 19-year-old. The brief does not mention Form 4473 or license revocation. Not once.
Section 922(b)(1) is still in the federal code. The ATF regulation that implements it, 27 CFR 478.99(b), still bars a licensee from selling a handgun to anyone it knows or has reasonable cause to believe is “less than 21 years of age”, in the version current through October 6, 2026.
I looked for an ATF open letter, ruling or Federal Register notice telling dealers the rule has changed. No ATF notice to dealers has been found as of October 8, 2026, and the Federal Register carries no ATF document on the subject since the opinion was issued.
The OLC opinion’s conclusion is about criminal penalties, and the same opinion notes that a dealer who willfully violates the age restrictions “risks losing that license”. The brief’s broader promise does not mention licenses, and ATF has not put it in writing for dealers. A shop that waits for ATF paperwork is reading the documents correctly.
State law is untouched by any of this. The same ATF regulation bars a dealer from making a sale that would violate state law, so a state that sets 21 for handguns still sets 21. Check yours in our state-by-state gun law directory.
So if you are 18, 19 or 20, do not assume a dealer will sell you a handgun, and don’t argue with one who won’t.
What Happens Next at the Fifth Circuit
The court can dismiss the appeal as moot, or it can reject mootness and rule on how far the injunction reaches. It has not ruled, and no argument date is on the docket.
If the court dismisses, the under-21 handgun ban stays in the code, unenforced by choice. If it rules, the plaintiffs may get an order that outlasts the policy.
A promise in a brief. A statute still on the books. A regulation nobody has rewritten. Call the shop before you drive.
Frequently Asked Questions
Did the Justice Department repeal the federal under-21 handgun sales ban?
No. Only Congress can repeal a statute, and 18 U.S.C. 922(b)(1) is still in the federal code. The Justice Department has said it will not enforce the provision, which is a policy choice and not a change to the law.
Can an 18-year-old buy a handgun from a licensed dealer?
Not as a matter of right. The federal statute and the ATF regulation at 27 CFR 478.99(b) still set 21 as the age for a dealer handgun sale. The Justice Department says it will not enforce them, but no ATF notice to dealers had been found as of October 8, 2026, state age limits still apply, and a dealer can decline the sale.
What does it mean when a court case is moot?
A case is moot when there is no longer a live dispute for a court to resolve. Federal courts can only decide actual controversies, so a moot case is dismissed without a ruling on the questions it raised.
Has the Fifth Circuit ruled on the Justice Department's mootness argument?
Not as of October 8, 2026. The Justice Department filed its brief on October 5, 2026 asking for dismissal. Mootness is the department's argument, and the court has not decided it.
What did Reese v. ATF decide?
On January 30, 2025, a Fifth Circuit panel held that 18 U.S.C. 922(b)(1) and (c)(1), which bar licensed dealers from selling handguns to adults aged 18 to 20, are unconstitutional under the Second Amendment. It sent the case back to the district court for further proceedings.
Who is covered by the district court injunction in the Reese case?
The January 27, 2026 judgment bars enforcement within the Fifth Circuit, meaning Mississippi, Louisiana and Texas, against the plaintiffs and anyone who was a member of one of the plaintiff organizations on the date the judgment was entered. The plaintiffs appealed to widen it.
Do state age limits on handgun purchases still apply?
Yes. A Justice Department enforcement policy does not change state law. The ATF regulation at 27 CFR 478.99(b) also bars a dealer from selling a firearm where the purchase would violate state law.
Can a later administration reverse a non-enforcement policy?
Yes. An Office of Legal Counsel opinion is executive branch legal advice, not a statute or a court judgment, and a later administration can withdraw it. That is the practical difference between a policy and an injunction.
Related Reading
- DOJ Says the Under-21 Handgun Sales Ban Is Unconstitutional
- Fifth Circuit Strikes Federal Interstate Handgun Sales Ban
- Louisiana Lets 18-Year-Olds Carry, Then Won’t Issue Them a Permit
- Judge Upholds Massachusetts Under-21 Gun Ban
- How to Buy a Gun Online: Complete Step-by-Step Guide
- US Gun Laws by State: Comprehensive Legal Directory
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