Well I know having them is no more illegal then owning a living one for example a Russian tortoise the shell isn’t illegal if the animal isn’t illegal. I’m not talking about sea turtles to clarifyI watched many TV episodes regarding animal stealing, etc. and they always said it was illegal to have the shells skins, etc. from any endangered or illegal animal.
Good to know thank youAndrew, as far as I know the laws that apply for shells would be exactly the same as if they were still alive.