Sec. 21. A school bus shall be equipped with windshield wipers, washers, a washer reservoir, and a windshield that meets the requirements of 49 CFR 571.103 and 571.104.
Mich. Comp. Laws § 257.1821, under THE PUPIL TRANSPORTATION ACT.
Mich. Comp. Laws § 257.1821
Sec. 21. A school bus shall be equipped with windshield wipers, washers, a washer reservoir, and a windshield that meets the requirements of 49 CFR 571.103 and 571.104.