X2 Any type of emergency move, ( note* emergency for a medic/firefighter not the same as civilian). Exactly, hot zone, (active shooter,chemical, ), building on fire, or crumbling, avalanche zone, forest fire, car on fire, etc Where the risk to life is greater then the risk of spinal injury.
there is actually a huge push right now, my agency included. Where we don't use or transport people on backboards anymore. May use to pull them out of a car we just cut the side out of, or to move a pt up a steep embankment. recent studies have shown prolonged time on backboards make injuries worse, or create a problem where one was not before. C collars still used a lot and recommended. But someone can have a c colar one and at least lay on a padded gournay with less harmful effect, and still be protected.