SUPPLEMENTARY INFORMATION:

Under each CSAPR trading program where EPA is responsible for determining emission allowance allocations, a portion of each state's emissions budget for the program for each control period is reserved in a NUSA (and in an additional Indian country NUSA in the case of states with Indian country within their borders) for allocation to certain units that would not otherwise receive allowance allocations. The procedures for identifying the eligible units for each control period and for allocating allowances from the NUSAs and Indian country NUSAs to these units are set forth in the CSAPR trading program regulations at 40 CFR 97.411(b) and 97.412 (NO_X Annual), 97.511(b) and 97.512 (NO_X Ozone Season Group 1), 97.611(b) and 97.612 (SO₂ Group 1), 97.711(b) and 97.712 (SO₂ Group 2), 97.811(b) and 97.812 (NO_X Ozone Season Group 2), and 97.1011(b) and 97.1012 (NO_X Ozone Season Group 3). Each NUSA allowance allocation process involves allocations to eligible units, termed “new” units, followed by the allocation to “existing” units of any allowances not allocated to new units.^[1]

In a notice of data availability (NODA) published in the Federal Register on February 25, 2021 (87 FR 10786), EPA provided notice of the preliminary calculations of NUSA allowance allocations for the 2021 control periods and described the process for submitting any objections. This NODA concerns the final NUSA allowance allocations.

In response to the February 25, 2021 NODA, EPA received written objections from Wisconsin Electric Power Company and the Wisconsin Department of Natural Resources. Both objections state that when calculating the allocation of CSAPR SO₂ Group 1 allowances for unit 2 at the Elm Road Generating Station (Plant ID 56068), EPA should have used a value of 315 tons instead of 262 tons for the unit's reported 2021 SO₂ emissions. Based on a review of the reported 2021 emissions data, EPA agrees with these objections and accordingly has corrected the final NUSA allowance allocations for the CSAPR SO₂ Group 1 Trading Program for Wisconsin to reflect a 53-ton increase in the amount of NUSA allowances allocated to Elm Road unit 2 and a corresponding 53-ton decrease in the collective amounts of NUSA allowances allocated to the state's “existing” units. EPA received no other written objections, and all other final allocations are unchanged from the preliminary allocations.

The detailed unit-by-unit data and final allowance allocation calculations are set forth in Excel spreadsheets titled “CSAPR_NUSA_2021_NO_X _Annual_Final_Data_New_Units,” “CSAPR_NUSA_2021_NO_X _OS_Final_Data_New_Units,” “CSAPR_NUSA_2021_SO₂ _Final_Data_New_Units,” “CSAPR_NUSA_2021_NO_X _Annual_Final_Data_Existing_Units,” “CSAPR_NUSA_2021_NO_X _OS_Final_Data_Existing_Units,” and “CSAPR_NUSA_2021_SO₂ _Final_Data_Existing_Units”, available on EPA's website at https://www.epa.gov/​csapr/​csapr-compliance-year-2021-nusa-nodas.

EPA notes that an allocation or lack of allocation of allowances to a given unit does not constitute a determination that CSAPR does or does not apply to the unit. EPA also notes that, under 40 CFR 97.411(c), 97.511(c), 97.611(c), 97.711(c), 97.811(c), and 97.1011(c), allocations are subject to potential correction if a unit to which allowances have been allocated for a given control period is not actually an affected unit as of the start of that control period.

(Authority: 40 CFR 97.411(b), 97.511(b), 97.611(b), 97.711(b), 97.811(b), and 97.1011(b).)

87 FR 22882