Mich. Comp. Laws § 257.677a: Obstruction of safety vision by removal or deposit of snow, ice, or slush prohibited.

Sec. 677a.

(1) As used in this section:

(a) "Person" does not include the state or a political subdivision of the state or an employee of the state or a political subdivision of the state operating within the scope of his duties.

(b) "Safety vision" means an unobstructed line of sight enabling a driver to travel upon, enter, or exit a roadway in a safe manner.

(2) A person shall not remove, or cause to be removed, snow, ice, or slush onto or across a roadway or the shoulder of the roadway in a manner which obstructs the safety vision of the driver of a motor vehicle other than off-road vehicles.

(3) A person shall not deposit, or cause to be deposited, snow, ice, or slush onto or across a roadway or the shoulder of the roadway in a manner which obstructs the safety vision of the driver of a motor vehicle.

(4) A person shall not deposit, or cause to be deposited, snow, ice or slush on any roadway or highway.

(5) A person who violates this section is responsible for a civil infraction and shall be ordered to pay a civil fine of not more than $100.00.