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CSAPR Assurance Provision

The Cross-State Air Pollution Rule (CSAPR) trading programs include assurance provisions to ensure that the emissions reductions required from each state under the trading programs will occur within the state.

  • Each year, EPA completes an evaluation for each trading program for each state comparing the total emissions from the affected units to the state’s assurance level.
  • If the total emissions from the state’s affected units exceed the state’s assurance level, then two allowances must be surrendered for each ton of emissions over the assurance level. These allowance surrenders are in addition to every affected source’s usual requirement to surrender one allowance for each ton of emissions. In other words, for each ton of emissions in excess of a state’s assurance level, a total of three allowances must be surrendered.
  • Responsibility for surrendering any required additional allowances is divided among the state’s affected sources according to the regulations. Each designated representative (DR) for sources in the state is assigned a share of the state’s total assurance level, and only the DRs whose sources’ total emissions exceed the DRs’ respective shares of the assurance level have to surrender additional allowances.

The link below provides tables that, for each state, by program, show:

  • the state budget,
  • assurance level, and
  • 2018 control period emissions. 

2018 CSAPR Budgets Emissions and Assurance Levels Spreadsheet (XLSX)(35 K, June 7, 2019)

2017 CSAPR Budgets Emissions and Assurance Levels Spreadsheet (XLSX)(25 K, November 15, 2018)

For each calendar year for which the CSAPR assurance provisions are triggered, EPA publishes a series of notices of data availability (NODAs) in the Federal Register.