2024 40 CFR 61.139 – Provisions for alternative means for process vessels, storage tanks, and tar-intercepting sumps
2023 40 CFR 61.139 – Provisions for alternative means for process vessels, storage tanks, and tar-intercepting sumps
2022 40 CFR 61.139 – Provisions for alternative means for process vessels, storage tanks, and tar-intercepting sumps
2021 40 CFR 61.139 – Provisions for alternative means for process vessels, storage tanks, and tar-intercepting sumps
2015 40 CFR 61.139 – Provisions for alternative means for process vessels, storage tanks, and tar-intercepting sumps
2014 40 CFR 61.139 – Provisions for alternative means for process vessels, storage tanks, and tar-intercepting sumps
2010 40 CFR 61.139 – Provisions for alternative means for process vessels, storage tanks, and tar-intercepting sumps