🌫️EPA Approves Idaho's Regional Haze Implementation Plan
Air Plan Approval; ID; Regional Haze Plan for the Second Implementation Period
Summary
The Environmental Protection Agency (EPA) is approving the Idaho regional haze State Implementation Plan (SIP) revision submitted on August 5, 2022, supplemented on September 27, 2024, and clarified on August 12, 2025, as satisfying applicable requirements under the Clean Air Act and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. The Idaho SIP revision addressed the requirement to make reasonable progress toward the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility in certain national parks and wilderness areas.
Agencies
- Environmental Protection Agency
Business Impact
$$$ - High
The regulation approves Idaho's State Implementation Plan (SIP) for the EPA's Regional Haze Rule, which includes enforceable permit conditions impacting air quality and compliance costs for businesses. Companies may need to adapt operations to meet new emission standards, affecting financial planning and operational strategies.