"(b) The placement or maintenance of the structure is exempt from any permit 2
or other approval requirement under subch. II of ch. 30 or under s. 281.36 and the 3
structure is placed and maintained in a manner that meets the requirements for the 4
No person who is immune from civil liability under sub. (2) with regard 9
to the placement of a structure on, or the maintenance of a structure placed on, the 10
bed of a".