The only SxS allowed are Michigan LICENSED Assembled Vehicles which are governed by the same highway laws as legal automobiles in Michigan, except they are not permitted on Interstate Highways. I don't think Unlicensed SxS are permitted in any Michigan State Park. I may be wrong but I haven't seen any SxS without a Michigan license plate on them.
Also review the rules for trail widths of machines allowed
I would go to www.dnr.mi.gov and check
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