3D Printing and CNC Manufacturing Laws, Research Digest

Date saved: 2026-10-22 18:00 (PDT)

Sources: Giffords Law Center, PCMag, California Legislative Information, Synth Anatomy, Layer by Layer, KUOW

Key findings

State laws targeting 3D printing and CNC manufacturing

Colorado passed HB 26-1144, signed by Governor Jared Polis on May 5, 2026, effective July 1, 2026, prohibiting the manufacture of a firearm, unfinished frame or receiver, large-capacity magazine, or rapid-fire device with a 3D printer or CNC milling machine without a federal firearms license; critically, Colorado defined 3D printing as both additive and subtractive manufacturing, meaning CNC machines, milling equipment, and router tables are legally classified as 3D printers under the statute. (Source)
New York became the first state to require that all 3D printers for sale come with blocking technology to prevent the printer's use to manufacture firearms and conversion devices (S. 9005), signed in May 2026, with the requirement going into effect as soon as technologically feasible; the law also prohibits possessing the digital firearm manufacturing code used by 3D printers to create a firearm with intent to manufacture one or to distribute it to someone prohibited from possessing firearms or not properly licensed. (Source)
Washington enacted HB 2320 in 2026, signed by Governor Bob Ferguson on March 24, 2026, effective July 1, 2026, making it unlawful to manufacture a frame or receiver or unfinished frame or receiver using a 3D printer, CNC milling machine, or other means without a federal license; the law also criminalizes selling, transferring, or possessing digital firearm manufacturing code with intent to distribute to unlicensed persons. (Source)
New Jersey, which previously banned 3D printing firearms without a license, also prohibited the possession of the digital code used to 3D print firearms with the intent to manufacture a firearm (AB 4975). (Source)

The printer content-filter mandate and what it would mean

New York's S.9005 requires that all 3D printers sold in the state come with blocking technology that detects and prevents the production of firearm components; uploaded parts files would be reviewed by AI programs with an additional layer of human intervention, and the state would maintain a database of banned files. (Source)
California's proposed AB 2047 would require 3D printers sold in the state to include blocking technology capable of detecting and preventing the production of firearm components; California's existing AB 1263 expands liability for those who facilitate or distribute digital firearm manufacturing code. (Source)
California already prohibits any person other than a state-licensed firearms manufacturer from using a CNC milling machine or 3D printer to manufacture a firearm, and makes it unlawful to sell, offer to sell, or transfer a CNC milling machine or 3D printer that has the sole or primary function of manufacturing firearms to anyone without a federal license. (Source)
Three US states have introduced or passed legislation that would require surveillance software embedded in consumer 3D printers, and make it a felony to store or share certain print files; House Bill 2320 in Washington takes effect July 1, 2026. (Source)

The legal assault on home manufacturing is no longer confined to ghost guns (it is reaching into the tools themselves, the software that runs them, and the digital files that tell them what to make. New York became the first state in May 2026 to require that all 3D printers sold in the state come with blocking technology capable of detecting and preventing the production of firearm components, with the requirement taking effect as soon as technologically feasible. Washington's HB 2320, signed into law in March 2026, did not just ban the 3D printing of firearms), it reached upstream into the ecosystem that makes them possible, regulating digital firearm files, restricting their distribution, and explicitly pulling 3D printers and CNC machines into the same legal framework. Colorado's HB 26-1144, signed May 5, 2026, takes the most expansive definition of all: it defines 3D printing as both additive AND subtractive manufacturing, meaning CNC machines, milling equipment, and router tables are legally "3D printers" under Colorado law, so woodworkers, machinists, and engineers who have nothing to do with firearms just got pulled into a ghost gun manufacturing statute.

The throughline is that these laws are converging on a common architecture: a requirement that consumer printing hardware contain firmware-level content filters, a prohibition on possessing or distributing the digital code used to manufacture firearms, and felony exposure for sharing certain files. The open-source firmware community has responded with a flood of custom firmware for the M-VAVE FM-1 and similar devices, a different hardware space, but the same dynamic: once a device's firmware is open, the manufacturer loses control over what it can do. The question for 2027 is whether any of these state laws survive legal challenge on First Amendment grounds (code is speech, after all) and whether the federal government follows the states' lead with a national printing mandate.

3D Printing and CNC Manufacturing Laws, Research Digest

Key findings

State laws targeting 3D printing and CNC manufacturing

The printer content-filter mandate and what it would mean

Source links