Mich. Comp. Laws § 324.82132
The operator of a snowmobile involved in an accident resulting in injuries to or the death of any person or property damage in an estimated amount of $100.00 or more shall immediately by the quickest means of communication notify a state police officer or officers, the sheriff's office of the county in which the accident occurred, or the office of the police department of the local unit of government in which the accident occurred. The police agency receiving the notice shall complete a report of the accident on forms prescribed by the director of the department of state police and forward the report to the department of state police within 14 days after the date of the accident. The department of state police shall forward a copy of all snowmobile accident reports to the department within 14 days after receipt of the accident report.
MCL 324.82132