2023 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2022 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2020 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2019 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2017 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2016 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2015 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2014 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2013 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability

2009 Michigan Laws 125.1521 – Petition for approval of materials, products and methods; testing and evaluation; certificate of acceptability