I had alot of dealings with fema and fema trailers after the storms.Some of them will be trashed and others will be unused.They had one with a dead body in it that they thought the frige went out because of the slime on the floor of the kitchen until they noticed the body that POPPED because of the heat in the trailer

That one got burned out back.
Some were thrown together very quickly and we were told that they were not meant to on the road like a regular RV.They were just a quick fix for the lack of housing.