The compliance reports page is a part of the OpenSCAP plugin and will only exist if this plugin is installed on your orcharhino.
The compliance reports page can be accessed via the hosts menu:
Hosts > Compliance > Reports
The compliance reports page lists compliance reports. These reports are the result of compliance scans on hosts assigned to some compliance policy. Compliance reports use the ARF (“Asset Reporting Format”) report format as specified in the SCAP standard. They will list any compliance criteria and whether the scanned host has passed or failed.
Refer to the OpenSCAP compliance policies page for more information.