California Code, Civil Code - CIV § 1812.529

Each nurses' registry shall continuously maintain in its offices true and correct permanent log sheets and other records which shall disclose, in addition to the other information required, the date and hour of the receipt by the nurses' registry of each order for a private duty nurse, and the date and hour of the making or giving of each assignment to the nurse by the nurses' registry, the name of the nurse assigned, the name of the patient and the address where the nurse is assigned, the name of the attending physician, the date the assignment is to start, the period of actual service for each assignment, and the amount of the fee charged for each assignment. No nurses' registry, his or her agent or employees, shall make any false entry in those records. The nurses' registry shall maintain the log sheets and records required by this section respectively for a period of one year.