Good Neighbor Plan for 2015 Ozone NAAQS

Proposed “Good Neighbor” Plan to Cut Smog Across Much of the United States

On this page:

• Rule Summary
• Maps
• Rule History
• Additional Resources

Rule Summary

On February 28, 2022, the Administrator signed a proposed Federal Implementation Plan (FIP) to assure that the 26 states identified in the proposal do not significantly contribute to problems attaining and maintaining the 2015 Ozone National Ambient Air Quality Standards (NAAQS) in downwind states.  This action, known as a “Transport Rule” would help states fully resolve their Clean Air Act “good neighbor” obligations for the 2015 Ozone NAAQS.

The rule would establish an allowance-based ozone season trading program with nitrogen oxides (NO_X) emissions budgets for fossil fuel-fired power plants in 25 states. The rule would also establish NO_X emissions limitations for certain other industrial stationary sources in 23 states. 

EPA will hold a public hearing on the proposal and will post details on this page as soon as they are available. The public comment period for the proposal is open for 60 days after publication in the Federal Register.

Maps

Provided are four maps that show various aspects of the Good Neighbor Plan. Click on each map to see a larger version.

Rule History

May 12, 2022 - Comment Period Extension

The Environmental Protection Agency is extending the comment period on the proposed rule to June 21, 2022.

• Notice of Comment Period Extension for the Proposed Good Neighbor Plan for the 2015 Ozone NAAQS (May, 2022)

February 28, 2022 - Proposed Good Neighbor Plan for the 2015 Ozone NAAQS

The Environmental Protection Agency proposed significant steps to reduce ozone forming NO_X emissions. This action would ensure that the 26 states identified in the proposal do not “significantly contribute” to problems attaining and maintaining the 2015 Ozone National Ambient Air Quality Standards (NAAQS) in downwind states through a combination of requirements for power plants and certain other industrial sources.

• Proposed Good Neighbor Plan for the 2015 Ozone NAAQS (April, 2022)
• Fact Sheet: Proposed Good Neighbor Plan for the 2015 Ozone NAAQS (pdf) (March, 2022)
• Table of State Budgets for Power Plants
• Summary of Proposed NO_X Emission Limits for Industrial Sources
• Regulatory Impact Analysis for Proposed Federal Implementation Plan Addressing Regional Ozone Transport for the 2015 Ozone National Ambient Air Quality Standard (pdf) (2022, EPA-452/D-22-001)
  • Addendum to the RIA: Monetizing Climate Benefits for the Proposed FIP (pdf)
• Power Sector Modeling

Informational Stakeholder Webinars

EPA hosted three, 90-minute stakeholder webinars on March 29, March 30, and March 31. See the slides used during those sessions:
2015 Ozone Transport Proposed Rule Overview (pdf) (March, 2022)

Technical Support Documents (TSDs)

• Preparation of Emissions Inventories for the 2016v2 North American Emissions Modeling Platform (pdf) (March, 2022)
• Air Quality Modeling (pdf) (March, 2022)
  • Data File with Ozone Design Values and Ozone Contributions (xlsx)
• 2019 National Emissions Inventory: Point Data Category (pdf) (March, 2022)
• Power Plants: Allowance Allocation under the Proposed Rule (pdf) (April, 2022)
  • Unit-level Allocations and Underlying Data for the Proposed Rule (xlsx)
  • Impact of Coal Consent Decrees for the Proposed Rule (xlsx)
• Power Plants: EGU NOₓ Mitigation Strategies (pdf) (March, 2022)
• Industrial Sources: Technical Memorandum: Screening Assessment of Potential Emissions Reductions, Air Quality Impacts, and Costs from Non-EGU Emissions Units for 2026 (pdf) (March, 2022)
• Industrial Sources: Non-EGU Sectors TSD (pdf) (March, 2022)
• Ozone Transport Policy Analysis (pdf) (March, 2022)
  • Appendix A:  Proposed Rule State Emission Budget Calculations and Engineering Analytics (xls)
  • Ozone Air Quality Assessment Tool (AQAT) (xlsx)
• Status of CAA Section 110(a)(2)(D)(i)(I) SIP Submissions for the 2015 Ozone NAAQS for States Covered by the Proposed Federal Implementation Plan Addressing Regional Ozone Transport for the 2015 Ozone National Ambient Air Quality Standards Proposed Rule (pdf) (March, 2022)

Additional supporting information and data for the listed TSDs will be available in the forthcoming official docket.

Additional Resources

• Interstate Air Pollution Transport
• Revised Cross-State Air Pollution Rule Update
• Cross-State Air Pollution Rule Update
• Cross-State Air Pollution Rule