HB 2320
In force since July 1, 2026.
Last reviewed 2026-08-01
HB 2320 passed the Washington legislature on March 11, 2026 and took effect on July 1, 2026. The primary sponsor was Rep. Osman Salahuddin.
It is one of the broadest measures enacted anywhere, because it reaches the machine, the file, and the act of manufacturing. Washington also has RCW 9.41.326 already on the books, covering undetectable and untraceable firearms.
A follow-up bill, HB 2321, was drafted to specify enforcement details including file-scanning protocols and software restrictions on consumer printers. It has stalled, and revisions are being prepared for the legislature reconvening in January 2027.
Prohibits selling, offering for sale or transferring any 3D printer or CNC milling machine in Washington if it is marketed or promoted to consumers with the primary or intended function of manufacturing firearms or components.
Prohibits selling, transferring, distributing or possessing digital firearm manufacturing code (CAD, STL, G-code) with intent to distribute to unlicensed individuals or to print a firearm or frame.
Possessing digital instruction files for firearms creates a rebuttable legal presumption of intent to unlawfully manufacture or distribute the code.
Makes it illegal for any non-federally-licensed individual to use a 3D printer or CNC mill to produce a firearm frame, receiver, or machine gun conversion device.
RCW 9.41.326 (already active): prohibits manufacture, assembly, possession, sale or transfer of undetectable and untraceable firearms.
Monitor state enforcement of digital code and printer sales rules that took effect July 1, 2026.
Follow regulatory releases from the state Attorney General and Department of Licensing.
Washington State Attorney General’s Office (atg.wa.gov)
Provide feedback on technical feasibility, slicer file limits, and open-source software impacts.
Submit comments or request to testify at legislative committee hearings prior to the 2027 session.
WA House Civil Rights & Judiciary Committee
Educate lawmakers on how standard additive manufacturing, slicing software, and CAD repositories operate.
Coordinate technical demonstrations or joint statements with local makerspaces and tech hubs.
Pacific Northwest Maker Alliances & Local FabLabs
Voice constituent positions on digital file privacy, gun violence prevention, or 3D printing regulation.
Schedule meetings with your local 48th District or regional House and Senate representatives.
Washington State Legislature Member Directory (leg.wa.gov)