This discipline brings all previous training and equipment into concert.
Due to the highly unstable environment associated with a collapse, a rescuer must be prepared for secondary collapses, hazardous atmospheres, biological contamination, and any number of other problems.
Shoring materials have to be placed to stabilize rubble and debris to allow rescuers to safely remove patients. If proper stabilization is not completed, a secondary collapse is highly likely to occur.
Ropes are used to traverse such a chaotic environment.
Well known collapse rescue incidents include the World Trade Center in New York and the federal building in Oklahoma City.