2024 Michigan Laws 54.239 – Sole system after December 31, 1989

2023 Michigan Laws 54.239 – Sole system after December 31, 1989

2022 Michigan Laws 54.239 – Sole system after December 31, 1989

2020 Michigan Laws 54.239 – Sole system after December 31, 1989

2019 Michigan Laws 54.239 – Sole system after December 31, 1989

2017 Michigan Laws 54.239 – Sole system after December 31, 1989

2016 Michigan Laws 54.239 – Sole system after December 31, 1989

2015 Michigan Laws 54.239 – Sole system after December 31, 1989

2014 Michigan Laws 54.239 – Sole system after December 31, 1989

2013 Michigan Laws 54.239 – Sole system after December 31, 1989

2009 Michigan Laws 54.239 – Sole system after December 31, 1989