here in PA if you get caught dumping or putting them out you can be fined, even on your own land?, its not enforced a lot, but it is the law here
they require them to be disposed of like trash
I'm lucky my buddy is a butcher, and has a company that wants them
I havebeen klnown to put a rib cage or parts out for a bait /to place a trail cam over to see what eats it
but I would believe that most states have like laws
its about preventing illness from rotton meats and likes
or causing other problems