Provide 2nd alarm and greater alarm response and special calls to fires, hazardous-materials incidents, specialized/technical rescue incidents, mass-casualty incidents, weather emergencies, homeland security events, and unusual events such as public safety funerals and major water outages. Host and/or coordinate multiple agency joint training events. Member departments also have multiple automatic aid agreements in place. Most alarms cover the first 8-24 hours of an incident; however, member departments have been rotated through 3-5 days of some complex or unusual incidents usually for 8–12-hour operational periods. Long term events are coordinated between Tri-State Mutual Aid assets and Tennessee and Georgia Statewide Mutual Aid Systems including Southeast TN District 3 (TMAS) and Northwest GA District 1 (GMAG).