EPAFinal Rule

Air Quality State Implementation Plans; Approvals and Promulgations: Idaho; Regional Haze Plan for the Second Implementation Period

EnvironmentEnergy

Summary

The EPA approved Idaho's plan to improve air quality and reduce haze in the state, particularly affecting scenic areas like national parks and wilderness regions. This rule requires Idaho to monitor air pollution and take steps to make the air clearer over the next several years.

Key Points

  • 1Idaho must reduce air haze caused by pollution, particularly in areas known for scenic views
  • 2The plan applies to sources of pollution like power plants, factories, and other industrial facilities across Idaho
  • 3Idaho will track air quality improvements through monitoring systems and report progress to the EPA
  • 4This is the second phase of a long-term effort, with goals extending over the next 10+ years
  • 5The regulation helps protect public health and preserves visibility at national parks and protected outdoor areas

Impact Assessment

If you are an Energy Company or Manufacturer in Idaho, this means you must implement pollution control measures and monitoring systems to meet air quality standards and reduce haze affecting scenic areas.

Impact Level
Moderate
Geographic Scope

State-specific

Compliance Cost

Moderate

Who is Affected
Energy CompaniesManufacturersState GovernmentsTransportation Companies

Key Dates

Published

September 5, 2025

Regulatory Connections

Amends CFR Sections
40 CFR Part 51

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.