California moves to ban the sale of 3D printers without a "firearm blueprint detection algorithm."

A wooden judges' gavel in the foreground with a golden set of scales in the backgroundr.

• The ban, if implemented, would mean that any printer without this firearm-blocking technology could not legally be sold or transferred in California
• The move is still pending Senate review before being enacted into law
• It could mean that 3D printers could become more expensive or more restrictive for users in the state in the near future as manufacturers pass on added compliance costs to users

The state of California is moving toward enacting a ban on the sale of 3D printers that lack a built-in algorithm preventing users from producing 'ghost guns' on a whim.