(a) A firearm containing a serial number assigned to it pursuant to Penal Code section 23910 or pursuant to Chapter 44 (commencing with Section 921) of Part 1 of Title 18 of the United States Code and the regulations issued pursuant thereto.

(b) A firearm that was manufactured or assembled prior to December 16, 1968, as long as the firearm is not a handgun.

(c) A firearm that was entered into the centralized registry with the Department prior to July 1, 2018, pursuant to Penal Code section 11106. Such a firearm contains a serial number or other mark of identification assigned by the individual who manufactured or assembled the firearm and reported the serial number or mark of identification to the Department so that it is on file with the Department. This serial number or mark of identification is typically one that was created by the individual who manufactured or assembled the firearm; therefore, it is not a serial number or mark of identification that was issued by the Department.

(d) A firearm containing a serial number pursuant to Chapter 53 of Title 26 of the United States Code and regulations issued pursuant thereto. Hence, if the individual's firearm already has a serial number issued to it by a Federal Firearms Licensee, whether it is a functional firearm or just a receiver or frame by itself, the individual does not have to apply for a Department-issued unique serial number.

(e) A firearm that is a curio, relic, or an antique firearm, as those terms are defined in Penal Code sections 23925, subdivision (b)(3), and 32000, subdivision (b)(3).

(f) A firearm possessed by a nonresident traveling with the firearm in accordance with the provisions of Section 926A of Title 18 of the United States Code, or used exclusively in an organized sport shooting event or competition.