A situation causes a fault to be raised on the APIC.

Under System -> Faults, right-click on the fault and select Acknowledge Fault so that acknowledged faults will immediately disappear.

Create a stats threshold policy with both rising and falling thresholds defined so that the critical severity threshold matches the squelched threshold.

Under System -> Faults, right-click on the fault and select Ignore Fault to create a fault severity assignment policy that hides the fault.

Create a new global health score policy that ignores specific faults as identified by their unique fault code.