Cal. Civ. Code § 1786.30

Whenever an investigative consumer reporting agency prepares an investigative consumer report, no adverse information in the report (other than information that is a matter of public record, the status of which has been updated pursuant to Section 1786.28) may be included in a subsequent investigative consumer report unless that adverse information has been verified in the process of making the subsequent investigative consumer report, or the adverse information was received within the three-month period preceding the date the subsequent report is furnished.