2024 40 CFR 81.306 – Colorado

2023 40 CFR 81.306 – Colorado

2022 40 CFR 81.306 – Colorado

2021 40 CFR 81.306 – Colorado

2016 40 CFR 81.306 – Colorado

2015 40 CFR 81.306 – Colorado

2014 40 CFR 81.306 – Colorado

2010 40 CFR 81.306 – Colorado

2009 40 CFR 81.306 – Colorado