The state being Montana.
Bill LC1760 in Montana proposes banning felt in the state starting in October of 2012.
Felt would still be cool for some.
The provisions of this section do not apply to a state or federal employee or emergency personnel, including fire, law enforcement, and emergency medical technicians, using external felt-soled boots or external felt-soled waders when acting within the scope of duty.
Can't have the emergency personnel slipping in the river now can we?