How should you maintain firearm documentation and serial numbers?

• A. You should never record serial numbers.
• B. Serial numbers should be altered to prevent tracking.
• C. Keep all records only for tax purposes.
• D. Record the serial number in a log and keep records of purchase, transfer, and licensing; ensure numbers are not altered.

Answer: (D)

Serial numbers are the unique identifiers of firearms, and keeping a careful record of them helps establish a clear line of ownership and accountability. The best practice is to record the serial number in a dedicated log and keep accompanying records of purchase, transfer, and licensing. This creates an auditable trail that supports lawful ownership, makes it easier to report a firearm as lost or stolen, and helps authorities trace a firearm if needed. Importantly, the serial number should never be altered or removed, since changing it is illegal in many jurisdictions and would undermine the ability to trace and identify the firearm. Keep receipts, transfer documents, and license information securely, and update the log whenever ownership changes.