California’s Last Legislative Week: 3-D Printer Controls and a Four-Hour Live-Fire Certificate Are Still Alive

The California Legislature’s final full week of the 2026 session opened Monday. NRA-ILA reported Friday that several anti-gun bills remain eligible for floor votes. Two of the heaviest are in the official bill files.

Assembly Bill 2047 (Bauer-Kahan), the California Firearm Printing Prevention Act, was amended in the Senate on August 17, 2026. The current text is not an immediate statewide printer ban. It directs the Department of Justice, beginning no later than July 1, 2027 and quarterly after that, to check whether ASTM International has published industry standards for “firearm blocking technology” on three-dimensional printers. If ASTM has, DOJ must publish written guidance or regulations within 24 months describing minimum performance standards and requiring manufacturers, before offering a printer for sale or transfer in California, to equip it with that technology and self-attest. If ASTM has not published those standards as of July 1, 2029, DOJ is relieved of further checks. “Firearm blocking technology” means hardware, firmware, or other measures that stop a print job unless a firearms-blueprint detection algorithm has cleared the file.

Senate Bill 948 (Arreguín), amended in the Assembly August 13, 2026, rebuilds the Firearm Safety Certificate. On or after January 1, 2029, an applicant must have completed in the prior year a course of no less than four hours that includes live-fire shooting exercises on a firing range and a demonstrated showing of safe handling and basic proficiency. Valid CCW holders, and people who finished a CCW training course under Penal Code § 26165 within the previous three years, are excepted. The bill also stretches personal-firearm-importer reporting to 180 days and, starting January 1, 2028, requires a perjury certification that the importer holds a valid FSC or an exemption.

NRA-ILA also listed AB 1753 (ammunition under the GVRO framework), AB 1974 (storage/surrender pathway), SB 1220 (serial-number misdemeanor as a 10-year prohibition trigger), and AB 1743 (broader Automated Firearms System data sharing) as floor-eligible. The last week is when incremental bills that survived committee get a vote. Contact your Assembly member and senator before the clock runs out — speak4.app/lp/tl01wntv from NRA-ILA, or the Legislature’s own member finder.