Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.81127

Sec. 81127. (1) Under the comprehensive system previously approved and implemented under former section 16d of 1975 PA 319,  1 all forest roads shall be open to ORV use as provided in section 72118.  2 All other state owned land under the jurisdiction of the department shall be closed to ORV use except the following:

(2) The commission shall approve any subsequent revisions to the system and shall establish an effective date for the revisions. The department shall submit the revisions approved by the commission to the secretary of the senate and the clerk of the house of representatives at least 20 session days before the effective date determined by the commission.

(3) In developing the system, the department shall consider the needs of hunters, senior citizens, and individuals with disabilities.