California Assembly passes 3D printer bill that would criminalize bypassing mandated gun-blocking software

California lawmakers advanced AB 2047, a bill that would require 3D printers sold in the state to include firearm-blocking technology.

The software would scan design files before printing, and owners could face penalties for disabling or bypassing it.

The bill also directs California DOJ standards, manufacturer compliance attestations, and a public list of approved models.

Critics warn it could affect open-source firmware, privacy, and consumer control of devices, while supporters say it targets gun-related risks.