2024 40 CFR 61.42 – Emission standard

2023 40 CFR 61.42 – Emission standard

2022 40 CFR 61.42 – Emission standard

2021 40 CFR 61.42 – Emission standard

2015 40 CFR 61.42 – Emission standard

2014 40 CFR 61.42 – Emission standard

2010 40 CFR 61.42 – Emission standard