Title 11, Division 5, Chapter 4 of the California Code of Regulations [1] implements the Unsafe Handgun Act (Penal Code Sections 31900-32110), which requires all new handgun models to pass safety testing and be listed on the Roster of Handguns Certified for Sale before a dealer may sell them in California.
Testing and Certification Requirements
Manufacturers must submit handgun models to an independent testing laboratory approved by the DOJ. The testing protocol includes:
- Drop safety test: The handgun must not fire when dropped from a height of one meter in six orientations
- Firing test: The handgun must fire 600 rounds with no more than six malfunctions and no cracking or breakage of an operating part
- Safety device requirement: The handgun must have at least two specified safety features (e.g., manual safety, magazine disconnect, firing pin block, loaded chamber indicator)
The Microstamping Requirement
Effective May 2013, Penal Code Section 31910(b)(7)(A) requires all new handgun models to be capable of microscopic engraving (microstamping) that transfers a unique identifier from the firing pin to the cartridge case primer upon firing [2]. No manufacturer has submitted a handgun for testing with functional microstamping technology. As a result, no genuinely new handgun model was added to the roster between May 2013 and March 2023, when the Boland v. Bonta injunction removed the microstamping, chamber load indicator, and magazine disconnect mechanism requirements.
DOJ Microstamping Viability Report (July 2025)
On July 18, 2025, the California DOJ released a report concluding that microstamping technology is "technologically viable" [4]. The report, prepared by the Bureau of Forensic Services, found that microstamped firing pins can reliably imprint identifying characters on spent cartridge casings without impairing firearm function. This report is the first step in the SB 452 implementation process, which could result in a standalone microstamping requirement for all semiautomatic pistol sales on or after January 1, 2028, independent of the roster framework, if the DOJ confirms commercial availability by July 1, 2027.
Shrinking Roster
Roster listings require annual renewal and a per-model fee. When manufacturers decline to renew older, low-volume models, they drop off the roster. Combined with the years-long freeze on new additions caused by microstamping, the roster has steadily shrunk from a peak of approximately 1,200 models to approximately 800 as of early 2026. This has significantly limited the selection of new handguns available in California compared to other states.
However, the Boland injunction has enabled some new additions since 2023. Notable models added to the roster include the Biofire Smart Gun (certified February 2025) and select Sig Sauer P320 Legion and Shadow Systems DR920 variants. These additions demonstrate the practical significance of the injunction for California handgun buyers.
Off-Roster Transfers
Handguns not on the roster may still be acquired in California through specific exemptions: private party transfers between California residents, intrafamilial transfers (parent-child, grandparent-grandchild), law enforcement purchases, and curio and relic handguns. These exemptions, particularly law enforcement purchases followed by private resale, have created a secondary market where off-roster handguns command substantial premiums.
Ongoing Litigation
The constitutionality of the roster has been challenged in Boland v. Bonta [3]. The case has been vacated and pended to the Ninth Circuit's en banc resolution of Duncan v. Bonta. The eleven-judge en banc panel issued its decision in Duncan on March 20, 2025 (upholding the LCM ban 7-4) and is expected to address Boland as part of a coordinated review. The Boland preliminary injunction remains in effect, meaning the microstamping, CLI, and MDM requirements are not currently enforced for roster certification.