Section 33310.

Cal. Penal Code - PEN § 33310.
in effect
Sign in to generate a plain English summaryAsk Belisarius Agent
(a) Every person, firm, or corporation to whom a permit is issued under this article shall keep it on the person or at the place where the short-barreled rifles or short-barreled shotguns are kept. The permit shall be open to inspection by any peace officer or any other person designated by the authority issuing the permit. (b) Every short-barreled rifle or short-barreled shotgun possessed pursuant to the provisions of this article shall bear a unique identifying number. If a weapon does not bear a unique identifying number, the Department of Justice shall assign a number which shall be placed or stamped on that weapon.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

Starting a business in California? California LLC guide: costs and requirements