California Code, Penal Code - PEN § 466.6

(a) Any person who makes a key capable of operating the ignition of a motor vehicle or personal property registered under the Vehicle Code for another by any method other than by the duplication of an existing key, whether or not for compensation, shall obtain the name, address, telephone number, if any, date of birth, and driver's license number or identification number of the person requesting or purchasing the key; and the registration or identification number, license number, year, make, model, color, and vehicle identification number of the vehicle or personal property registered under the Vehicle Code for which the key is to be made. Such information, together with the date the key was made and the signature of the person for whom the key was made, shall be set forth on a work order. A copy of each such work order shall be retained for two years, shall include the name and permit number of the locksmith performing the service, and shall be open to inspection by any peace officer or by the Bureau of Collection and Investigative Services during business hours or submitted to the bureau upon request.

Any person who violates any provision of this subdivision is guilty of a misdemeanor.

(b) The provisions of this section shall include, but are not limited to, the making of a key from key codes or impressions.

(c) Nothing contained in this section shall be construed to prohibit the duplication of any key for a motor vehicle from another key.