2024 Michigan Laws 257.312k – Commercial driver licenses; medical certifications; hazardous material endorsements; pandemic expiration extension

2023 Michigan Laws 257.312k – Commercial driver licenses; medical certifications; hazardous material endorsements; pandemic expiration extension

2022 Michigan Laws 257.312k – Commercial driver licenses; medical certifications; hazardous material endorsements; pandemic expiration extension

2020 Michigan Laws 257.312k – Commercial driver licenses; medical certifications; hazardous material endorsements; pandemic extension