Firearms Regulations: Firearm Precursor Part Definitions and Guidebook (Emergency)

In 2019, the California Legislature passed Assembly Bill (“AB”) 879 (Ch. 730, Stats. 2019) to extend the laws governing the sale and purchase of firearms and ammunition to firearm precursor parts. Pursuant to Penal Code section 16531, the Department of Justice is required to provide “written guidance and pictorial diagrams demonstrating each category of firearm precursor part.”

The Department is taking immediate action to adopt regulations that will assist individuals in identifying firearm precursor parts as they are defined under California law. Failure to take immediate action will threaten public safety, put residents at risk of violating laws related to the purchase or transfer of firearm precursor parts, and create confusion for law enforcement.

Sections Affected
California Code of Regulations, Title 11, Division 5, Chapter 11
Section: 4302

Status of the Proposal
The emergency rulemaking was approved by the Office of Administrative Law on March 4, 2022 and went into effect on that date. The emergency regulations will expire on September 1, 2022 unless the emergency regulations are readopted or made permanent by a Certificate of Compliance.

Emergency Regulations Documentation

Anyone submitting a comment regarding a proposed action has the right to request a copy of the final statement of reasons

NOTE: This webpage will be deleted 12 months after the rulemaking is completed and the regulation is filed with the Secretary of State.