I think they cannot ban a sled, but they can ban the use of an internal combustion engine, which would essentially eliminate the use of a sled. They have done it on the Humptulips above 101 from Dec 1 to March 31 starting some years back. There are several rivers that they have even banned the ability to fish from a flotation device (sections of Willapa, Wynoochee above the 7400 up until a couple of years ago.) Someone merely needs to propose it as a rule change, provide a justification, and gain support. It can happen, but I don't think it will on the Satsop or Wynoochee.