EPAProposed Rule

Public comment period extension - Proposed approval of the Indiana Regional Haze SIP Revision for the Second Implementation Period

EnvironmentEnergy

Summary

The EPA is proposing to approve Indiana's plan to improve air visibility and reduce haze in the state, particularly around national parks and scenic areas. The agency is giving the public until mid-August 2025 to comment on whether this plan adequately addresses air pollution caused by power plants and other industrial sources.

Key Points

  • 1Indiana submitted a revised air quality plan designed to reduce haze and improve visibility at scenic locations like national parks
  • 2The plan covers the second implementation period, meaning it's the next phase of long-term efforts to clean up the air
  • 3The EPA is reviewing the plan and wants public feedback before making a final decision on approval
  • 4People have until August 19, 2025 to submit comments about whether the plan is strong enough
  • 5If approved, Indiana will need to require pollution reductions from industrial facilities and power plants over the coming years

Key Dates

Published

July 16, 2025

Comment Deadline

August 19, 2025

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This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.

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