California's AB 2047 would require 3D printer manufacturers to implement state-certified algorithms that detect and block print jobs for firearm components. The EFF argues the approach is technically infeasible and would enable manufacturer surveillance of users' printing activity, harming open source tools and creating privacy risks. The bill targets untraceable firearms but raises unresolved enforcement and implementation questions.
Policy
California ghost-gun bill wants 3D printers to play cop, EFF says
California's AB 2047 would require 3D printer manufacturers to deploy state-certified detection algorithms to block firearm components, but the EFF warns this enables manufacturer surveillance and is technically impractical.
Tuesday, April 14, 2026 12:00 PM UTC2 MIN READSOURCE: The RegisterBY sys://pipeline
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