California Code, Civil Code - CIV § 1812.528

It shall be the duty of the nurses' registry to verify in writing the claims as to the experience or training listed on the application and to keep a file of those records in the nurse's folder within the nurses' registry. It shall also be the duty of the person interviewing the jobseeker to require the jobseeker to exhibit his or her license as issued by the Board of Registered Nursing or the Board of Vocational Nurse and Psychiatric Technician Examiners, with a notation to be made on the application by the interviewer that the license has been inspected and the date of expiration of the license.