Versions of 40 CFR 49.4 - Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States on LawServer 2024 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2023 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2022 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2021 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2020 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2019 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2016 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2015 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2014 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2010 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States 2009 40 CFR 49.4 – Clean Air Act provisions for which it is not appropriate to treat tribes in the same manner as States