California
Mandated reporters are individuals who are legally required to report known or suspected abuse and neglect of vulnerable populations to state and/or local authorities. Laws surrounding mandated reporting vary from state-to-state so please ensure your familiarity with your state's laws regarding individuals who are required to report known or suspected abuse and neglect.
Links
Child Abuse Central Index Self Inquiry Request
For use by private citizens. Pursuant to PC section 11170(f), "Any person may determine if he or she is listed in the CACI by making a request in writing to the Department of Justice."
There does not appear to be a publicly accessible Adult Abuse Registry for California. However, information may be able to be obtained through the county's Adult Protective Services (APS) agencies, which investigate abuse, neglect, and exploitation of elders and dependent adults.

