StacksVerified U.S. regulatory reference

40 CFR §62.6353

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
Letter from the Missouri Department of Natural Resources, submitted May 4, 2022, certifying that there are no sulfuric acid production plants in Missouri. Effective date: The revision effective date of the negative declaration and EPA withdrawal of the prior plan approval is October 6, 2025.