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Clean Air
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Clean Air
State Implementation Plans Resources

Clean Air Interstate Rule Background and Guidance

  • National Association of Clean Air Agencies, “Alternative NOx Allowance Allocation Language for the Clean Air Interstate Rule(pdf)

    • Prepared by the group formerly known as the State and Territorial Air Pollution Program Administrators (STAPPA) and the Association of Local Air Pollution Control Officials (ALAPCO), this document provides alternative CAIR regulatory language for state NOx allocations that can provide opportunities to promote clean technologies.
  • U.S. EPA, “Clean Air Markets: CAIR.”

    • Website on CAIR by the Clean Air Markets program of the EPA, which promotes market-based regulatory programs to improve air quality. Includes a helpful question and answer section covering some of the technical aspects of CAIR implementation.
  • U.S. EPA, “Clean Air Interstate Rule Website.”

    • Provides general background information on the Clean Air Interstate Rule, including implementation guidance and regulatory language.

State Specific State Implementation Plan Resources

State Implementation Plan and Clean Energy General

Mobile Sources and Transportation

Clean Air Resources


Photo courtesy of Jim Gill

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