EPAFinal Rule
State Implementation Plan: Due Date for the Regional Haze Third Implementation Period
EnvironmentEnergy
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Summary
This EPA rule sets a deadline for states to submit plans showing how they will reduce air pollution that causes haze in scenic areas like national parks and wilderness areas. The rule is part of a long-term effort to improve air quality and visibility so people can enjoy outdoor views without pollution getting in the way.
Key Points
- 1States must submit updated air quality improvement plans by a specific deadline to address regional haze pollution
- 2The rule focuses on making the air clearer in protected scenic areas, particularly national parks and wilderness regions
- 3This is the third phase of a multi-decade program requiring states to gradually reduce air pollution over time
- 4States must show they are controlling major pollution sources like power plants and industrial facilities
- 5If states don't comply, the EPA can impose stricter pollution controls or withhold federal highway funding
Impact Assessment
If you are a state government, this means you must develop and submit a plan by the deadline showing how your state will reduce air pollution causing haze in scenic areas, or face federal enforcement action.
Impact Level
Moderate
Geographic Scope
National
Compliance Cost
Significant
Who is Affected
State GovernmentsEnergy CompaniesManufacturersFarmers
Key Dates
Published
January 6, 2026
Regulatory Connections
Amends CFR Sections
40 CFR Part 51 Subpart P
Other Documents in This Rulemaking (EPA_FRDOC_0001)
EPATransportation
Air Quality State Implementation Plans; Approvals and Promulgations: California; Heavy-Duty Vehicle Inspection and Maintenance Program
EPAEnvironment
Air Quality State Implementation Plans; Approvals and Promulgations: Kentucky; Emissions Inventory and Nonattainment New Source Review for the Henderson-Webster Sulfur Dioxide Nonattainment Area
EPAEnvironment
State Implementation Plan: Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and Applicability of Certain Clean Air Act Requirements
EPAHealthcare
National Primary Drinking Water Regulation for Perchlorate
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.
The Digest Network
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