The ATF has officially published their proposed changes to Form 4473. We’ve read all 13 pages. Here’s what the rule actually says, what it doesn’t say, and what you need to know.
What we know for sure.
The ATF published a Notice of Proposed Rulemaking (NPRM) that would amend regulations governing all ATF forms.
The proposed regulatory text states:
“The term ‘sex’ on ATF forms required by this part refers to an individual’s immutable biological classification as either male or female and does not include the concept of gender identity. Individuals completing forms required by this part should select their biological sex. Each form shall be executed under penalties of perjury, if the form or the regulation so provide.
- All ATF forms would require reporting “biological sex” defined as “immutable biological classification as either male or female.”
- Under penalty of perjury. False statements on these forms are prosecuted under 18 USC 1001, which carries penalties of up to 5 years in federal prison.
- The nonbinary option is gone.
Let’s be super clear on the important new development, this isn’t just Form 4473. This applies to NFA forms (for suppressors, SBRs, etc.) and explosives-related forms as well.
What we don’t know, and what that tells us.
This rule provides zero enforcement guidance.
The proposed rule does not specify:
- How dealers are supposed to verify “biological sex”
- Whether identification documents must match the reported sex
- What happens with intersex individuals
- What documentation, if any, is required
- How this will be enforced
- What dealers should do if they have questions
The problem of “Immutable Biological Sex”
The rule uses the term “immutable biological classification” but provides no practical guidance on how to enforce or determine it.
Executive Order 14168 defines sex based on reproductive cells at conception. Female produces large cells, male produces small cells. The NPRM incorporates this definition but provides no mechanism for how anyone actually determines this in practice. This is obviously unworkable. Gun dealers don’t verify reproductive biology. Most people don’t know their gamete production capacity at conception.
The rule also doesn’t address the obvious question: what happens when someone’s reported “biological sex” on the form doesn’t match their legal identification? Can dealers reject the purchase? Are they required to? Is it a false statement if your driver’s license says F but you report M? We don’t know and we’re not comfortable speculating.
This untenable situation is hard to read as anything other than an attempt to chill second amendment rights by creating uncertainty and confusion for transgender firearms purchasers.
The legal basis appears extraordinarily weak.
The ATF claims authority to define “sex” this way based on:
- Executive Order 14168 (January 20, 2025) – which simply declares sex means “immutable biological classification”
- Bibby v. Philadelphia Coca Cola Bottling Co. (2000) – a district court employment discrimination case that cited a dictionary from 1993
Conspicuously absent is any mention of Bostock v. Clayton County (2020), where the Supreme Court held that discrimination against transgender people is inherently sex-based discrimination.
That’s it. No medical definitions. No scientific consensus. No Supreme Court precedent. No statutory interpretation. Just vibes.
What the timeline looks like.
Comment Period: 90 days from publication (May 6, 2026) – comments due approximately August 4, 2026
Final Rule: Likely October-December 2026
Implementation: 30-60 days after final rule publication – late 2026 or early 2027
Our guidance remains the same: If you are planning a firearm purchase, do it this summer before implementation. Don’t wait until the last minute.
Should you leave a public comment?
A lot of people are asking whether they should comment. It’s a fair question with no easy answer. It comes down to a personal risk assessment.
Here’s how public comments work.
When the government proposes a rule, they’re required to let the public weigh in. You submit a comment, it goes into the official record, and theoretically the agency considers what you said before finalizing the rule.
The ATF gives you options to protect your privacy when commenting. If you submit online, your name and email won’t show up publicly on regulations.gov. If you mail it in, you can put your personal info on a separate cover sheet marked “CUI//PRVCY” and that part stays private.
But the problem here is that being private from the public doesn’t mean private from the government.
The ATF still gets your full name. They know exactly who you are and what you said. Your comment might not be Googleable, but it’s absolutely in federal records and controlled by a hostile government.
What that actually means.
Simply by commenting, even utilizing the privacy options provided, you’re putting yourself in a federal database. The government will have a record of you as a potentially trans person who opposed this rule.
In a friendly administration, that might not matter much. In a hostile one? There are risks. We’ve seen hostile states like Texas make lists with similar information. The concern is real and needs to be reckoned with.
We’re living under an administration that issued Executive Order 14168 specifically to target trans people across federal agencies. That same administration now has the ATF implementing this rule. If you comment, they’ll know.
Will your comment actually stop this?
We’re going to be honest with you. Probably not.
They want this rule. They’re going to get this rule. Public opposition isn’t going to change that. This isn’t a democracy exercise where enough comments flip the outcome.
But comments do serve a purpose. They create the administrative record that courts review when legal challenges happen. They document public opposition. They highlight specific legal problems with the rule. All of that matters when organizations fight this in court.
So your comment won’t stop implementation, but it does contribute to the legal fight that comes after. They are not a hopeless endeavor, they have meaning and impact.
So what should you do?
That depends entirely on your situation and your risk tolerance. There’s no right answer.
Some of you are already in government systems as trans people. You’ve got federal employment, or you’re on benefits, or you’ve changed federal documents. For you, commenting might not create new risk.
Some of you have been public advocates. You’ve testified, you’ve organized, you’ve put your name on things before. Adding one more federal record might be worth it to you.
But some of you aren’t in that position. Maybe you’re not out in all contexts. Maybe you’re trying to minimize your exposure to federal databases. Maybe you just don’t want to be on another government list right now.
All of those positions are legitimate.
We need people to voice strong opposition to this rule. We need the record to show how many people this harms and how legally flawed it is. But not everyone is in a place where they can do that safely and that’s ok.
If you’re not comfortable with the federal government having your name in their files as someone who opposed this rule, don’t comment. That’s a completely reasonable decision.
If you are comfortable with that and want to be on record, go ahead and comment. Just do it with your eyes open about what you’re creating.
Neither choice makes you a better or worse advocate. This is about your safety and your risk assessment.
The bottom line on commenting.
Legal challenges are coming whether you comment or not. National organizations with legal standing and resources will fight this. Your individual comment helps build that record, but it’s not required for the fight to happen.
Make the choice that keeps you safe.
If that means commenting, great. If that means not engaging with federal rulemaking right now, that’s equally valid. What matters most is that you understand the choice you’re making.
The bottom line.
This rule is coming. It’s legally weak, it’s poorly reasoned, and it will face serious court challenges. But while those challenges work their way through the system, which will likely outlast the administration, the rule will be enforced.
Don’t expect SCOTUS to stop implementation.
If you’ve been planning a firearm purchase, don’t put it off. Implementation is likely late 2026 or early 2027. Once it’s in effect, false statements on Form 4473 carry real criminal penalties, and this administration has shown it has the will to prosecute.
If you want to comment, understand what you’re creating. The government will know who you are. Weigh that risk against your desire to be on record.
If you don’t want to comment, that’s fine. The legal fights are happening regardless.
We told you in January this was coming. We’ve been tracking it since November. We’re still here, we’re still monitoring every development, and we’ll keep you informed as this moves forward.
Check back regularly. We’re not going anywhere. We keep us safe.