Change Auditor does not track changes made to the Local Security Policy of servers that have a Change Auditor Agent installed. Change Auditor for Active Directory will monitor any changes made to Group Policy on the domain controllers. The following is an outline of Group Policy Item events that are monitored on the domain controllers that have a Change Auditor for Active Directory agents installed:
https://support.quest.com/technical-documents/change-auditor-for-active-directory/event-reference-guide
The following is an outline of Local Events that are tracked by the Change Auditor agent that is installed on a server:
Local Group Monitoring: