3D Printing and CNC Manufacturing Laws: Research Digest

Date saved: 2026-10-25 18:01 (PDT)

Sources: Stateline, Planet 3DP, Everytown, California Legislature, Washington State Legislature, New York State Legislature, Colorado Legislature, Institute for Justice

Key findings

State laws in effect

Stateline (June 11, 2026): Colorado, Maine, New Jersey, New York, Virginia, and Washington enacted laws this year tightening rules around 3D-printed guns and firearms without serial numbers; the new laws include restrictions on manufacturing untraceable firearms, limits on distribution of digital gun-design files, and requirements aimed at preventing the use of 3D printers to produce gun parts; California is considering a measure requiring 3D printers to include firearm-blocking technology, and a Minnesota proposal did not advance out of the legislature. (Source)
Washington HB 2320 (in effect March 24, 2026): Prohibits making frames or receivers, including unfinished ones, with a 3D printer or CNC mill unless the maker is a federally licensed manufacturer; first violation is a $500 civil infraction; bars selling or sharing gun files with people who are not licensed, and possessing them with intent to distribute or make guns; the companion printer-blocking bill HB 2321 died in committee. (Source)
Colorado HB 26-1144 (in effect July 1, 2026): Prohibits knowingly making a functional firearm, unfinished frame or receiver, large-capacity magazine, or rapid-fire device by 3D printing or CNC milling without a federal license; penalties are Class 1 misdemeanor for first offense and Class 5 felony for repeat; the bill's definition of "3D printing" includes CNC milling; federally licensed manufacturers and accredited gunsmithing programs are exempt. (Source)
New York S9005-C / A10005-C (file and manufacturing offenses in effect August 25, 2026): Selling or sharing digital gun files with someone who lacks both a NY gunsmith license and a federal firearms license is a Class A misdemeanor; possessing gun files with intent to illegally make guns or share them with prohibited or unlicensed people is a Class A misdemeanor; making a ghost gun or major firearm component is a Class D felony; the printer-blocking rule is not in effect and requires a working group to recommend standards before the Department of Criminal Justice Services can issue rules. (Source)
California AB 2047 (signed September 26, 2026, effective January 1, 2027): The CA Firearm Printing Prevention Act requires consumer 3D printers sold in the state to include technology capable of detecting and blocking attempts to print firearms, gun parts, and machine-gun conversion devices -- but only if and when ASTM publishes an industry standard; if no standard exists by July 1, 2029, the state can stop checking; the final version has no printer roster and no crime for modifying your own machine; printers used only for entertainment-industry props are exempt. (Source)

Federal inaction and related legal fights

Congress / S.2165 -- 3D Printed Gun Safety Act of 2025: Introduced in the Senate on June 25, 2025, by Senator Moskowitz (D-FL) with Markey and 23 cosponsors, the bill would amend Chapter 44 of Title 18 to prohibit the distribution of 3D printer plans for printing firearms -- making it unlawful to intentionally distribute, over the internet or by means of the World Wide Web, digital instructions in the form of CAD files or other code that can automatically program a 3D printer to produce a firearm or complete a firearm from an unfinished frame or receiver; the bill has not moved since June 2025. (Source)
Everytown for Gun Safety (2026): Washington Governor Bob Ferguson signed HB 2320 into law, landmark legislation that closes technological loopholes by regulating the digital blueprints that allow gun printing and by prohibiting the use of 3D printers and CNC milling machines to manufacture firearms and machine gun conversion devices; Everytown president John Feinblatt called 3D-printed guns "untraceable weapons that allow criminals to thwart law enforcement and make a firearm with the push of a button." (Source)
Texas federal court (August 17, 2026): Judge Reed O'Connor ruled key parts of the ATF's 2022 "ghost gun" frame and receiver rule unconstitutional; whether the ruling will be appealed is not yet known. (Source)
San Diego County v. Polymaker (October 5, 2026): San Diego County sued filament maker Polymaker, alleging some of its products were marketed to people building untraceable guns; these are allegations. (Source)
NDAA FY2026 (Public Law 119-60): Starting December 18, 2026, the Department of Defense cannot contract for additive manufacturing machines from companies based in or controlled by China, Russia, Iran, or North Korea, or on federal screening lists; the provision is DoD-only and not hobbyist-facing. (Source)

The states are moving faster than Washington on 3D-printed gun laws, and the moves they are making reveal a clean ideological split: Democratic-led states are passing restrictions that target both the digital files and the machines themselves, while the federal 3D Printed Gun Safety Act has stalled in the Senate since June 2025. California's AB 2047, signed by Governor Gavin Newsom on September 26, requires consumer 3D printers sold in the state to include firearm-blocking technology -- but only if and when ASTM publishes an industry standard, and nothing changes for printers people already own until that standard appears and the state DOJ writes rules. It is a law that turns on a future technical committee decision. New York's approach is more aggressive on paper: file-sharing and manufacturing offenses took effect August 25, making it a Class A misdemeanor to sell or share digital gun files with unlicensed people and a Class D felony to manufacture a ghost gun, but the printer-blocking rule is not in effect and the working group has up to a year just to recommend standards. Washington's HB 2320 has been in effect since March 24 and actually means something right now: making frames or receivers on a 3D printer or CNC mill without a federal manufacturer license is a $500 civil infraction, and sharing gun files with unlicensed people is barred. Colorado's HB 26-1144, in effect since July 1, prohibits 3D printing or CNC milling of functional firearms, unfinished frames or receivers, large-capacity magazines, and rapid-fire devices without a federal license -- and its definition of "3D printing" explicitly includes CNC milling. The throughline is that the state-level patchwork is real and enforceable, while the federal bill sits in committee. What to watch next: the San Diego County lawsuit against filament maker Polymaker, filed October 5, alleging some products were marketed to people building untraceable guns, will test whether the supply chain itself becomes a legal target; and the New Jersey case Davenport (No. 26-184) challenging the state's ban on distributing gun files, with the court asking New Jersey to respond by October 26, will signal whether the file-sharing bans survive constitutional challenge.

3D Printing and CNC Manufacturing Laws: Research Digest

Key findings

State laws in effect

Federal inaction and related legal fights

Source links