Penal Code PC § 30352
(1) The date of the sale or other transfer.
(2) The purchaser’s or transferee’s driver’s license or other identification number and the state in which it was issued.
(3) The brand, type, and amount of ammunition sold or otherwise transferred.
(4) The purchaser’s or transferee’s full name and signature.
(5) The name of the salesperson who processed the sale or other transaction.
(6) The purchaser’s or transferee’s full residential address and telephone number.
(7) The purchaser’s or transferee’s date of birth.
(b) Commencing July 1, 2019, an ammunition vendor shall electronically submit to the department the information required by subdivision (a) for all sales and transfers of ownership of ammunition. The department shall retain this information in a database to be known as the Ammunition Purchase Records File. This information shall remain confidential and may be used by the department and those entities specified in, and pursuant to, subdivision (b) or (c) of Section 11105 , through the California Law Enforcement Telecommunications System, only for law enforcement purposes. The ammunition vendor shall not use, sell, disclose, or share the information for any other purpose other than the submission required by this subdivision without the express written consent of the purchaser or transferee.
(c) Commencing on July 1, 2019, only those persons listed in this subdivision, or those persons or entities listed in subdivision (e), shall be authorized to purchase ammunition. Prior to delivering any ammunition, an ammunition vendor shall require bona fide evidence of identity to verify that the person who is receiving delivery of the ammunition is a person or entity listed in subdivision (e) or one of the following:
(1) A person authorized to purchase ammunition pursuant to Section 30370 .
(2) A person who was approved by the department to receive a firearm from the ammunition vendor, pursuant to Section 28220 , if that vendor is a licensed firearms dealer, and the ammunition is delivered to the person in the same transaction as the firearm.
(d) Commencing July 1, 2019, the ammunition vendor shall verify with the department, in a manner prescribed by the department, that the person is authorized to purchase ammunition. If the person is not listed as an authorized ammunition purchaser, the vendor shall deny the sale or transfer.
(e) Subdivisions (a) and (d) shall not apply to sales or other transfers of ownership of ammunition by ammunition vendors to any of the following, if properly identified:
(1) An ammunition vendor.
(2) A person who is on the centralized list of exempted federal firearms licensees maintained by the department pursuant to Article 6 (commencing with Section 28450 ) of Chapter 6 of Division 6.
(3) A person who purchases or receives ammunition at a target facility holding a business or other regulatory license, provided that the ammunition is at all times kept within the facility’s premises.
(4) A gunsmith.
(5) A wholesaler.
(6) A manufacturer or importer of firearms or ammunition licensed pursuant to Chapter 44 (commencing with Section 921 ) of Title 18 of the United States Code, and the regulations issued pursuant thereto.
(7) An authorized law enforcement representative of a city, county, city and county, or state or federal government, if the sale or other transfer of ownership is for exclusive use by that government agency, and, prior to the sale, delivery, or transfer of the handgun ammunition, written authorization from the head of the agency authorizing the transaction is presented to the person from whom the purchase, delivery, or transfer is being made. Proper written authorization is defined as verifiable written certification from the head of the agency by which the purchaser, transferee, or person otherwise acquiring ownership is employed, identifying the employee as an individual authorized to conduct the transaction, and authorizing the transaction for the exclusive use of the agency by which that individual is employed.
(8)(A) A properly identified sworn peace officer, as defined in Chapter 4.5 (commencing with Section 830 ) of Title 3 of Part 2, or properly identified sworn federal law enforcement officer, who is authorized to carry a firearm in the course and scope of the officer’s duties.
(B)(i) Proper identification is defined as verifiable written certification from the head of the agency by which the purchaser or transferee is employed, identifying the purchaser or transferee as a full-time paid peace officer who is authorized to carry a firearm in the course and scope of the officer’s duties.
(ii) The certification shall be delivered to the vendor at the time of purchase or transfer and the purchaser or transferee shall provide bona fide evidence of identity to verify that he or she is the person authorized in the certification.
(iii) The vendor shall keep the certification with the record of sale and submit the certification to the department.
(f) The department is authorized to adopt regulations to implement the provisions of this section.