This post documents proposed laws and the civil-liberties questions they raise. Much of the analysis comes from the Electronic Frontier Foundation, linked throughout so you can verify every claim. Details are accurate as of publication on July 4, 2026. Pending legislation changes quickly, so check the linked sources for the current status of each bill.
Imagine buying a printer that refuses to print a document until it phones home, scans the file and decides you are allowed. Now imagine the government required that printer to work that way. That is what several states are trying to do to 3D printers, and the same rules would sweep in CNC machines used by entire industries.
In 2026, legislators in New York, California, Washington and Colorado introduced bills that would mandate “print-blocking” software, force machines to scan every design file and criminalize sharing or possessing certain files. The Electronic Frontier Foundation has been fighting these bills on consumer-rights and free-speech grounds.
What the Bills Actually Require
New York. The proposed 2026-2027 state budget buries this in Part C. Subpart A (sections 2.10 and 2.11) creates Class E felony charges for distributing or possessing 3D-printer files that could produce major firearm parts. Subpart B requires every 3D printer and CNC machine sold in the state to run algorithms that scan your design files and block anything the software flags, and it forces all sales to happen face-to-face. There are no exceptions, not even for licensed gunsmiths or commercial manufacturers. Details are in EFF’s breakdown.
California. AB 2047 would mandate the same kind of censorware on all 3D printers and go further by criminalizing the use of open-source alternatives. See EFF’s analysis.
Washington. House Bill 2321, “Requiring three-dimensional printers be equipped with certain blocking technologies,” was prefiled on January 8, 2026.
Colorado. A similar proposal was scaled back after a veto scare, driven by First Amendment concerns. That is worth noting, because it shows even sympathetic lawmakers recognized the speech problem.
Punishing the Tool Instead of the Bad Actor
The stated target is ghost guns. The problem is that making an untraceable firearm is already illegal in every state proposing these bills. Someone willing to break that law will not be stopped by a detection algorithm they can bypass, especially since you can build your own printer from parts with no blocking software at all.
So the people who get punished are not the criminals. They are the hobbyists, the artists, the researchers, the small manufacturers and the rural makers who rely on these machines for entirely legal work. A printer has countless lawful uses. Treating every owner as a suspect because a handful of people misuse the technology gets the priority exactly backward. You go after the bad actor, not the tool millions of people use honestly.
The Rights in Question
First Amendment. Design files are information. Courts have long treated code as a form of speech. Making it a felony to possess or share a file, even when no one intends to build anything, criminalizes information itself. A journalist reporting on printed firearms, a researcher studying them or an artist commenting on gun culture could all be exposed. Colorado’s retreat over First Amendment concerns shows this is a real legal problem, not a talking point.
Ownership and the right to repair. You bought the machine. A government mandate that locks it to manufacturer-approved software means you no longer fully control your own property. This is the old DRM playbook from the DMCA, where code restrictions became a tool for manufacturers to control customers. We have already seen a preview. When Bambu Labs pushed restrictive firmware that complicated open-source software like OrcaSlicer, community backlash forced some accommodations. Under these bills, those workarounds could carry criminal penalties.
Surveillance and chilling effects. A machine that scans every file you make and reports on it is a surveillance device in your workshop. That alone changes what people feel free to create.
Why the Precedent Is the Real Danger
Blocking a category of design by its function is a moving target. It needs a constantly growing blacklist, and nothing in these bills limits that list to firearms. Once the infrastructure exists, the database of forbidden shapes is available to whoever has the power to add to it. EFF lays out the obvious next steps: Nintendo blocking a fan-made toy, John Deere blocking a replacement part, patent holders forcing additions or a repressive government blocking tools of protest like the anti-ICE community whistles people have shared. Add the false positives that every content filter produces, and you get lawful creations blocked by mistake with little recourse.
This fight is not new. EFF was defending open 3D printing back in 2012. What is new is the scale of what is being proposed and how quietly it is moving, in one case tucked inside a state budget where few people would look.
The companion EFF piece explains in detail why, beyond the rights problems, print blocking will not even work. It is bad policy that fails at its own stated goal while consolidating corporate power and criminalizing ordinary makers.
What You Can Do
These are live bills right now, so the window to act is open.
If you are in New York, California or Washington, this affects you directly. Contact your state representatives and tell them you oppose mandatory print-blocking and the criminalizing of design files. EFF maintains action pages that make this quick, linked from their coverage above.
Even if you are not in those states, this kind of law tends to spread once one passes. Watch your own legislature and support the groups fighting these bills. The Colorado proposal was scaled back after enough people raised First Amendment concerns, which shows this is winnable.
Sources
- EFF: Print Blocking is Anti-Consumer (Part 1)
- EFF: Print Blocking Won’t Work (Part 2)
- EFF: Stop New York’s Attack on 3D Printing
- EFF: The Dangers of California’s Legislation to Censor 3D Printing
- EFF: Keep 3D Printing Open (2012)
- Boing Boing: Three U.S. states want your 3D printer to snitch on what you print