Every day in the United States there are contractors and homeowners making entry into trenches. A trench collapse incident is a low-frequency, high-risk incident where the fire service companies can find themselves unaware and under prepared. Trench rescues add the challenges and hazards of both a confined space and a collapse incident. It is imperative that first-arriving companies identify that the incident involves a trench and the hazards that exist in these rescues. At times, engine companies underestimate the hazards that exist within a trench and find themselves in a position where the life safety of the rescuers is compromised. This class will identify the common hazards and first-in engine company actions that can improve the life safety of the patient and the responders.