Versions of 40 CFR 61.143 - Standard for roadways on LawServer 2024 40 CFR 61.143 – Standard for roadways 2023 40 CFR 61.143 – Standard for roadways 2022 40 CFR 61.143 – Standard for roadways 2021 40 CFR 61.143 – Standard for roadways 2015 40 CFR 61.143 – Standard for roadways 2014 40 CFR 61.143 – Standard for roadways