this post was submitted on 19 Feb 2026
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135
California’s New Bill Requires DOJ-Approved 3D Printers That Report on Themselves (blog.adafruit.com)
submitted 4 hours ago* (last edited 4 hours ago) by Beep@lemmus.org to c/technology@lemmy.world
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California’s new bill requires DOJ-approved 3D printers that report on themselves targeting general-purpose machines.

Assembly Member Bauer-Kahan introduced AB-2047, the “California Firearm Printing Prevention Act,” on February 17th. The bill would ban the sale or transfer of any 3D printer in California unless it appears on a state-maintained roster of approved makes and models… certified by the Department of Justice as equipped with “firearm blocking technology.” Manufacturers would need to submit attestations for every make and model. The DOJ would publish a list. If your printer isn’t on the list by March 1, 2029, it can’t be sold. In addition, knowingly disabling or circumventing the blocking software is a misdemeanor.

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[–] RedMari@reddthat.com 2 points 3 hours ago (3 children)

How would they connect a serialized part to a purchase if the serial number is completely gone? I guess 3d printing would also allow those who are unable to legally buy the parts to get them too.

[–] tomalley8342@lemmy.world 4 points 3 hours ago

They can't definitively pin a particular purchase to a particular serial-defiled firearm, but the fact that the government knows that you purchased a firearm on such and such date is probably enough of a concern for a lot of people. It's a lot easier to gather a stockpile of parts without drawing much attention.

[–] ToTheGraveMyLove@sh.itjust.works 2 points 2 hours ago* (last edited 2 hours ago)

If there's a record of you purchasing X gun, and they find you have that same model with the serial filed off, 99% chance you filed the serial off your gun.

[–] empireOfLove2@lemmy.dbzer0.com 1 points 3 hours ago (1 children)

Because to get the serialized part, you still have to be approved for the purchase through background checks, which will go live on the state police database, and then the police can check that database to see recently acquired firearms if something happens. Chances are the list of a specific type of firearm with the serial ground off is going to be pretty short.

And yes, the being able to obtain it with no background checks at all is the other big key.

[–] bdonvr@thelemmy.club 1 points 1 hour ago

Because to get the serialized part, you still have to be approved for the purchase through background checks

Unless you get it secondhand. Then you just kinda.... Skip all that. Legally.