Section 23910 Of Chapter 2. Obliteration Of Identification Marks From California Penal Code >> Division 3. >> Title 4. >> Part 6. >> Chapter 2.

. The Department of Justice upon request may assign a distinguishing number or mark of identification to any firearm whenever the firearm lacks a manufacturer's number or other mark of identification, or whenever the manufacturer's number or other mark of identification or a distinguishing number or mark assigned by the department has been destroyed or obliterated.