The verification approval number, which the Bureau of Firearms provides in a Firearms Shipment Approval letter, confirms that the intended recipient of the firearm shipment is properly licensed and listed in the state's database of persons/entities authorized to receive firearm shipments. If the intended CA FFL recipient is not listed in the state's database, the transaction will result in a Do Not Ship letter, and it is a crime for the intended recipient to receive the firearms (Penal Code Section 28465).