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  2. Cross-State Air Pollution

CSAPR Assurance Provision NODAs

On this page: 

  • September 21, 2022
  • July 15, 2022
  • September 22, 2021
  • May 17, 2021
  • August 28, 2020
  • May 15, 2020

If you do not have Microsoft Office, you may need to download a Free Viewer here to view the Excel files on this page.


September 21, 2022 – Final 2021 CSAPR Assurance Provision Calculations: CSAPR NOX Ozone Season Group 2 Trading Program – Missouri

EPA issued a final Notice of Data Availability, as required by CSAPR, demonstrating that total emissions of nitrogen oxides (NOX) reported by Missouri units participating in the CSAPR NOX Ozone Season Group 2 Trading Program during the 2021 control period exceeded that state’s assurance levels under the program. It includes final data regarding the exceedance and EPA’s calculations of the amounts of additional allowances that the owners and operators of certain Missouri units must surrender.

  • Notice of Data Availability Federal Register (87 FR 57695, September 21, 2022)
  • Final 2021 CSAPR Assurance Provision Calculations – Missouri (xlsx) (22.88 KB)

July 15, 2022 – Preliminary 2021 CSAPR Assurance Provision Calculations: CSAPR NOX Ozone Season Group 2 Trading Program – Missouri

EPA issued a preliminary Notice of Data Availability, as required by CSAPR, demonstrating that total emissions of nitrogen oxides (NOX) reported by Missouri units participating in the CSAPR NOX Ozone Season Group 2 Trading Program during the 2021 control period exceeded that state's assurance levels under the program. It includes data regarding the exceedance and EPA's preliminary calculations of the amounts of additional allowances that the owners and operators of certain Missouri units must surrender.

  • Notice of Data Availability Federal Register (87 FR 42459 July 15, 2022)
  • Preliminary 2021 CSAPR Assurance Provision Calculations – Missouri (xlsx) (22.81 KB)

September 22, 2021 – Final 2020 CSAPR Assurance Provision Calculations: CSAPR NOX Ozone Season Group 2 Trading Program – Mississippi and Missouri

EPA issued a final Notice of Data Availability, as required by CSAPR, demonstrating that total emissions of nitrogen oxides (NOX) reported by Mississippi and Missouri units participating in the CSAPR NOX Ozone Season Group 2 Trading Program during the 2020 control period exceeded those states’ assurance levels under the program. It includes final data regarding the exceedance and EPA’s calculations of the amounts of additional allowances that the owners and operators of certain Mississippi and Missouri units must surrender.

  • Notice of Data Availability Federal Register (86 FR 52674 September 22, 2021)
  • Final 2020 CSAPR Assurance Provision Calculations – Mississippi and Missouri (xlsx) (32.78 KB)

May 17, 2021 – Preliminary 2020 CSAPR Assurance Provision Calculations: CSAPR NOx Ozone Season Group 2 Trading Program – Mississippi and Missouri

EPA issued a preliminary Notice of Data Availability, as required by CSAPR, demonstrating that total emissions of nitrogen oxides (NOX) reported by Mississippi and Missouri units participating in the CSAPR NOX Ozone Season Group 2 Trading Program during the 2020 control period exceeded those states’ assurance levels under the program. It includes data regarding the exceedance and EPA’s preliminary calculations of the amounts of additional allowances that the owners and operators of certain Mississippi and Missouri units must surrender.

  • Notice of Data Availability Federal Register (86 FR 26720 May 17, 2021)
  • Preliminary 2020 CSAPR Assurance Provision Calculations – Mississippi and Missouri (xlsx)

August 28, 2020 – Final 2019 CSAPR Assurance Provision Calculations: CSAPR NOX Ozone Season Group 2 Trading Program – Mississippi

EPA issued a final Notice of Data Availability, as required by CSAPR, demonstrating that total emissions of nitrogen oxides (NOX) reported by Mississippi units participating in the CSAPR NOX Ozone Season Group 2 Trading Program during the 2019 control period exceeded the state’s assurance level under the program. It includes final data regarding the exceedance and EPA’s final calculations of the amounts of additional allowances that the owners and operators of certain Mississippi units must surrender.

  • Notice of Data Availability Federal Register (85 FR 53364 August 28, 2020)
  • Final 2019 CSAPR Assurance Provision Calculations - Mississippi (xlsx)

May 15, 2020 – Preliminary 2019 CSAPR Assurance Provision Calculations: CSAPR NOX Ozone Season Group 2 Trading Program – Mississippi

EPA issued a preliminary Notice of Data Availability, as required by CSAPR, demonstrating that total emissions of nitrogen oxides (NOX) reported by Mississippi units participating in the CSAPR NOX Ozone Season Group 2 Trading Program during the 2019 control period exceeded the state’s assurance level under the program. It includes data regarding the exceedance and EPA’s preliminary calculations of the amounts of additional allowances that the owners and operators of certain Mississippi units must surrender.

  • Notice of Data Availability Federal Register (85 FR 29445 May 15, 2020)
  • Preliminary 2019 CSAPR Assurance Provision Calculations - Mississippi (xlsx)

Cross-State Air Pollution

  • Good Neighbor Plan
  • What is Cross-State Air Pollution?
  • What Does the Clean Air Act Say?
Contact Us about Cross-State Air Pollution
Contact Us about Cross-State Air Pollution to ask a question, provide feedback, or report a problem.
Last updated on August 12, 2024
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