EPA Greenlights Missouri's Emission Fees and Data Rules
Published Date: 11/28/2025
Proposed Rule
Summary
The EPA is proposing updates to Missouri’s air pollution rules that affect businesses reporting emissions and paying fees from 2025 to 2028 and beyond. They’re adding a new hazardous chemical to the list and making some small rule tweaks, but air quality won’t change. If you’re a Missouri company dealing with emissions, get ready for these updates and consider sending your comments by the end of 2025.
Analyzed Economic Effects
3 provisions identified: 0 benefits, 3 costs, 0 mixed.
Missouri updates emission fees
Missouri is updating the emissions fee and a base fee for calendar years 2025–2028 and beyond and revises the per-ton emissions fee for permitted sources. The revised emission fees are effective January 1, 2026, and the fee subsection (3)(A) is being included in Missouri’s Title V Operating Permits Program but is not being approved into the SIP.
1‑Bromopropane added to hazardous list
Missouri is adding 1‑Bromopropane to the category 1 Hazardous Air Pollutant list in table 1. If your Missouri facility uses or emits 1‑Bromopropane, it will be listed as a category 1 Hazardous Air Pollutant under this rule.
Emission reporting years updated
The rule updates emission reporting years in table 4 of section (4)(B) as set by Missouri statute, changing when sources must report emission data. These reporting-year changes are part of the March 19, 2025 submittal and will apply under Missouri’s rule.
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Key Dates
Department and Agencies
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