2024 40 CFR 72.8 – Retired units exemption

2023 40 CFR 72.8 – Retired units exemption

2022 40 CFR 72.8 – Retired units exemption

2021 40 CFR 72.8 – Retired units exemption

2015 40 CFR 72.8 – Retired units exemption

2014 40 CFR 72.8 – Retired units exemption

2010 40 CFR 72.8 – Retired units exemption