There is no such thing as a flushable wipe, if it maintains its structure when wet you are asking for trouble if you flush it, eventually one will snag on a burr or a root or something, then the clog will expand from there.
Hi. I do not know the official answer but I flush them and I have an old home built in 1976 and have not had any problems. I also remember watching Shark Tank when this product was on and they said we could flush them. Hope that helps.