Seem to remember, in the last few years, new data showing the danger of felt had been terribly exaggerated. Look on the googles. Be assured the rules wont be changed to reflect new facts.
But you are right, warm water and a chlorine bleach soak will keep you from spreading dem nastis.
For several years, out of pure stubbornness, I refused to wash my felts.
Thing is, I only wore them on a few contiguous stretches of my beloved AuSable.
When I started fishing the Muskegon again, and after the St. Mary's, the felts were hot water hosed, soaked in bleach, and sun dried before taking them back into the holy water.
They can have my Danners when they pry them off my cold dead feet.