Air Quality State Implementation Plans; Approvals and Promulgations: Mississippi; 2010 1-Hour SO2 National Ambient Air Quality Standard Transport Infrastructure
EPA approves Mississippi's transport infrastructure SIP for the 2010 1-hour SO2 NAAQS, confirming no significant contribution to downwind nonattainment.
Aforeworn detected this change in the Environmental & Emissions Compliance (EPA) space on August 26, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated Low urgency. Mississippi sources subject to the 2010 1-hour SO2 NAAQS, including power generators and manufacturers. should confirm how it applies to their specific situation before acting. There is a time constraint attached: None specified.. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Environmental & Emissions Compliance (EPA) continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.
What changed
EPA approved Mississippi's infrastructure SIP for the 2010 1-hour SO2 NAAQS, addressing interstate transport requirements.
Who it affects
Mississippi sources subject to the 2010 1-hour SO2 NAAQS, including power generators and manufacturers.
What you must do
No immediate action required; continue to comply with existing SO2 emission limits and monitoring requirements.
Deadline
None specified.
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