571—16.20 (461A,462A) Permit criteria for rafts, platforms, or other structures. A raft, platform, or other structure maintained on a public water body requires authorization in a permit. The raft, platform, or other structure may not be placed more than 250 feet from the shoreline, shall be equipped with reflectors that are visible from approaching boats, and shall be subject to the winter removal requirement unless specifically exempted by the permit.