I suspect it applies to some kind of medical waste. I am sure. I hope.
Yes, I understand it to refer to medical waste; something such as casts, artificial limbs, medical waste, medical amputations, that sort of thing. However I think there is also a stipulation in law in certain states that has an additional charge associated with disposal of a body or body part in a landfill? We do here (it falls under desecration, I think) but I am not sure of everywhere.
Perhaps one of our verified attorneys knows for sure?
the question about fabric- maybe we could do a little research on that? Great question, and would tell us what material we were likely working with.