No person shall without proper authority construct, install, occupy, or maintain any building, log boom, pier, dock, fence, wall, pile, anchorage, or other structure or obstruction in any national wildlife refuge.
50 C.F.R. §27.92
No person shall without proper authority construct, install, occupy, or maintain any building, log boom, pier, dock, fence, wall, pile, anchorage, or other structure or obstruction in any national wildlife refuge.
50 C.F.R. §27.92