Essentially, when the skill is not in overload 1 or 2, reserve agents who are logged into that skill and not needed are “standing by.” CMS tracks this reserve agent “standby time” separately from the time that the reserve agent is actively working in the skill. Reserve agents’ standby time is not considered STAFFTIME for the skill. Only the time spent by reserve agents actively working in the overloaded skill is added to the skill’s STAFFTIME.