Section R. 318.142 - Signs, fences, improvements, and posted landsRule 42.
(1) It is unlawful to do any of the following on state-owned lands without proper permission:(a) Post, place, or erect signs.(b) Place or distribute advertising material.(c) Erect a fence or barrier.(d) Contruct or occupy improvements.(e) Enclosed state-owned lands.(2) It is unlawful to move, remove, destroy, mutiliate, or deface posters, notices, signs, or markers of the commission or of any other agency of government.(3) It is unlawful to enter, use, or occupy park lands for any purpose when they are posted against such entry, use, or occupancy, as ordered by the commission.Mich. Admin. Code R. 318.142