2023 Michigan Laws 120.18 – Port district public improvements; streams

2022 Michigan Laws 120.18 – Port district public improvements; streams

2020 Michigan Laws 120.18 – Port district public improvements; streams

2019 Michigan Laws 120.18 – Port district public improvements; streams

2017 Michigan Laws 120.18 – Port district public improvements; streams

2016 Michigan Laws 120.18 – Port district public improvements; streams

2015 Michigan Laws 120.18 – Port district public improvements; streams

2014 Michigan Laws 120.18 – Port district public improvements; streams

2013 Michigan Laws 120.18 – Port district public improvements; streams

2009 Michigan Laws 120.18 – Port district public improvements; streams