Stop AB2047 - California's bill that pulls 3D printers from schools and businesses

Email every Senator's team

One email can reach every Senate office through the Legislative Director who handles these bills. Copy the full list, paste it into the BCC field so offices don't see each other's addresses, and send a single message.

Suggested subject: Please vote NO on AB 2047. Tip: paste into BCC, not To.

Scroll for the full list. The Copy all emails button copies every Legislative Director address above into one list, ready to paste into BCC.

Upload your story to the legislative portal

California's Legislature runs an official portal where anyone can submit information for legislative review. Share how you use 3D printing, your concerns about AB2047, and any data you have. It becomes part of the record that lawmakers analyze - no meeting required, just upload. This is one of the most effective things you can do.

📤 Open the legislative portal

Your use case, your concerns, your data. No meetings - just upload.

Outside the US? The portal only accepts US-based addresses, but your voice still matters - 3D printing is a global community, and California lawmakers should hear how far this bill would reach. Email the Senate offices listed above instead; every message adds to the record.

Who decides next: Senate Appropriations

Appropriations weighs what a bill will cost the state. Make that cost impossible to ignore: civil lawsuits against businesses, schools, and families; a new DOJ department to certify and police printers; and years of research into technology experts say can't be built.

Email the committee staff who analyze the bill's fiscal impact - tell them what AB2047 will cost. Tap any address to email that person directly.

Write in your own words - here are the points that matter

Personal letters from real Californians carry far more weight than form letters. Pick the points that matter to you and tell them why, in your voice:

• The bill does not make anyone safer.
• The bill contradicts itself - its manufacturer mandate points to certification rules that a later amendment deleted, so it requires compliance with rules that no longer exist.
• The required technology is not possible - 3D printers read code, not intent; they cannot tell what a shape is for.
• The bill requires software that, if it could exist, would violate the First Amendment.
• It disrupts education at every level - K-12, CTE, libraries, community colleges, and universities.
• It breaks open-source 3D printing, which most classroom printers rely on, by demanding open firmware be as locked-down as proprietary firmware.
• California businesses, schools, and citizens are open to civil litigation - forced to prove a negative to defend themselves.
• The penalties hit the wrong people - the $25,000-per-violation fines fall on schools, makers, and small businesses, while bad actors route around the law.
• The exemptions are undefined - the bill exempts printers sold "exclusively" to entertainment studios, but no printer is built for one industry, leaving makers and cosplayers out. Worse, it mandates technology that does not exist - read plainly, the bill requires every printer to run detection software that cannot be built.

Organizational Signatories10 organizations

Individual Signatories7 individuals

By July 2027

California DOJ studies "blueprint detection"

The Department of Justice is directed to investigate firearm blueprint files and existing detection algorithms, and publish performance standards.

By January 2028

DOJ begins certifying algorithms

Third-party vendors can submit their detection algorithms for state certification, and DOJ publishes guidance on "firearm blocking technology" to be installed on printers.

By July 2028

Manufacturers must submit attestations

Every company making or selling 3D printers in California must submit an attestation per make and model, confirming certified blocking tech is installed.

By September 2028

DOJ publishes the "approved list"

The state maintains a public list - updated quarterly - of 3D printer makes and models that have submitted valid attestations. If it's not on the list, it can't be sold here.

Starting March 2029

The sale ban takes effect

Sale or transfer of any 3D printer not equipped with certified blocking tech and not on the approved list is prohibited. Civil lawsuits may be filed against violators.

Ongoing

New criminal penalties

It becomes a crime to disable, uninstall, or circumvent the firearm blocking tech on a 3D printer with intent to manufacture firearms.

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Bill Introduced Completed

AB2047 is introduced in the California State Assembly, framed as a public safety measure targeting 3D-printed firearms.

Passed Public Safety Committee Completed

The bill cleared the Assembly Public Safety Committee and was advanced for further review.

Passed Judiciary Committee Completed

The bill cleared the Assembly Judiciary Committee and was advanced to Appropriations.

Appropriations & Suspense File Completed

The bill cleared the Assembly Appropriations Committee, was placed in the Suspense File, and has now been released with 33 amendments and sent to the floor.

Passed the Assembly Floor Completed

The full Assembly voted to pass the amended bill, sending it across to the State Senate for the second half of the process.

Passed Senate Judiciary Committee Completed

The bill was heard by the Senate Judiciary Committee on June 23, cleared it, and advanced to the Senate Public Safety Committee.

Passed Senate Public Safety Committee Completed

The bill cleared the Senate Public Safety Committee on June 30 and now advances to the Senate Appropriations Committee.

Senate Appropriations Committee Up next

The Legislature is on its summer recess. When lawmakers return, the bill goes before the Senate Appropriations Committee, which weighs its cost to the state. This is the next place AB2047 can be stopped. Keep the pressure on →

Senate Floor Vote Upcoming

If it clears Appropriations, the full Senate votes on the bill.

Governor's Desk Upcoming

The Governor's signature or veto. The bill can be stopped at any stage.