Notice2026-07299
Allocations of Cross-State Air Pollution Rule Allowances From New Unit Set-Asides for 2025 Control Periods
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
April 15, 2026
Issuing agencies
Environmental Protection Agency
Abstract
The U.S Environmental Protection Agency (EPA) is providing notice of the availability of data on emission allowance allocations to certain units under the Cross-State Air Pollution Rule (CSAPR) trading programs. The EPA has completed final calculations for the allocations of allowances from the new unit set-asides (NUSAs) for the 2025 control periods and posted spreadsheets with these calculations on the Agency's website. The EPA has also completed final calculations for the allocations of allowances of the remaining 2025 NUSA allowances to existing units and posted spreadsheets with these calculations on the Agency's website.
Full Text
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<title>Federal Register, Volume 91 Issue 72 (Wednesday, April 15, 2026)</title>
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[Federal Register Volume 91, Number 72 (Wednesday, April 15, 2026)]
[Notices]
[Pages 20163-20164]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-07299]
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ENVIRONMENTAL PROTECTION AGENCY
[FRL-13238-02-OAR]
Allocations of Cross-State Air Pollution Rule Allowances From New
Unit Set-Asides for 2025 Control Periods
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice of data availability.
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SUMMARY: The U.S Environmental Protection Agency (EPA) is providing
notice of the availability of data on emission allowance allocations to
certain units under the Cross-State Air Pollution Rule (CSAPR) trading
programs. The EPA has completed final calculations for the allocations
of allowances from the new unit set-asides (NUSAs) for the 2025 control
periods and posted spreadsheets with these calculations on the Agency's
website. The EPA has also completed final calculations for the
allocations of allowances of the remaining 2025 NUSA allowances to
existing units and posted spreadsheets with these calculations on the
Agency's website.
DATES: April 15, 2026.
FOR FURTHER INFORMATION CONTACT: For information about this notice,
contact Morgan Riedel at telephone number: (202) 564-0421 or email
address: <a href="/cdn-cgi/l/email-protection#fe8c979b9a9b92d093918c999f90be9b8e9fd0999188"><span class="__cf_email__" data-cfemail="cebca7abaaaba2e0a3a1bca9afa08eabbeafe0a9a1b8">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Preamble acronyms and abbreviations. Throughout this document the
use of ``we,'' ``us,'' or ``our'' refers to the EPA. The EPA uses
multiple acronyms and terms in this preamble. While this list may not
be exhaustive, to ease the reading of this preamble and for reference
purposes, the EPA defines the following terms and acronyms here:
CFR Code of Federal Regulations
CSAPR Cross-State Air Pollution Rule
EPA Environmental Protection Agency
FR Federal Register
NODA notice of data availability
NO<INF>X</INF> nitrogen oxides
NUSA new unit set-asides
SO<INF>2</INF> sulfur dioxide
Background and Rationale. When the EPA is responsible for
determining emission allowance allocations in a CSAPR trading program,
a NUSA reserves a portion of each state's emissions budget, during each
control period of the program, for allocation to certain units that
would not otherwise receive allowance allocations. In addition, under
most of the trading programs, there is a separate Indian country NUSA
for states containing Indian country within their borders. The
[[Page 20164]]
CSAPR trading program regulations set forth procedures for identifying
eligible units during each control period and for allocating allowances
from the NUSAs and Indian country NUSAs to these units.<SUP>1 2</SUP>
Each NUSA allowance allocation process involves allocations to eligible
units, termed ``new'' units, followed by allocations to ``existing''
units of any remaining allowances.
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\1\ See 40 CFR 97.411(b) and 97.412 (Nitrogen Oxide
(NO<INF>X</INF>) Annual), 97.511(b) and 97.512 (NO<INF>X</INF> Ozone
Season Group 1), 97.611(b) and 97.612 (Sulfur Dioxide
(SO<INF>2</INF>) Group 1), 97.711(b) and 97.712 (SO<INF>2</INF>
Group 2), and 97.811(b) and 97.812 (NO<INF>X</INF> Ozone Season
Group 2, including units using Original Group 2 allowances and units
using Expanded Group 2 allowances).
\2\ The EPA has no plans to determine NUSA allowance allocations
for the 2025 control period under the CSAPR NO<INF>X</INF> Ozone
Season Group 3 Trading Program regulations at 40 CFR 97.1012. In
response to judicial stay orders, the EPA has administratively
stayed the implementation of that program for all sources for the
2024 control period. This program implementation will remain stayed
for future control periods unless and until provided otherwise in a
future rulemaking. See 88 Federal Register (FR) 49295 (July 31,
2023); 88 FR 67102 (September 29, 2023); 89 FR 87960 (November 6,
2024).
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This notice concerns the EPA's final calculations for the NUSA
allowance allocations for the 2025 control periods. Generally, under
the allocation procedures, each eligible new unit receives a 2025 NUSA
allocation equal to its 2025 control period emissions as reported under
40 CFR part 75. If the total of such allocations to all eligible units
exceeds the amount of allowances in the NUSA, the EPA reduces the
allocations on a pro-rata basis. The EPA does not consider a unit's
emissions that occur before its monitor certification deadline as
occurring during a control period and thus does not include these
emissions for determining NUSA allocations.\3\ After allocating
allowances to eligible new units in a state (or Indian country), the
EPA allocates remaining allowances to the state's existing units in
proportion to those units' previous allocations from the portion of the
state's emissions budget for the control period that was not reserved
in a NUSA (or Indian country NUSA).
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\3\ See 40 CFR 97.406(c)(3), 97.506(c)(3), 97.606(c)(3),
97.706(c)(3), and 97.806(c)(3).
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On March 2, 2026, the EPA published a notice of data availability
(NODA) in the Federal Register announcing the preliminary NUSA
allowance allocations for the 2025 control periods and explaining how
to submit objections.\4\ The EPA received no objections to the March 2,
2026, NODA. This NODA provides the final NUSA allowance allocations.
The EPA made no changes between the preliminary and final 2025 NUSA
sheets.
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\4\ 91 FR 10090 (March 2, 2026).
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The EPA sets forth detailed, unit-by-unit data and final allowance
allocation calculations for new units in Excel spreadsheets titled
``CSAPR_NUSA_2025_NO<INF>X</INF>_Annual_Final_Data_New_Units,''
``CSAPR_NUSA_2025_NO<INF>X</INF>_OS_Final_Data_New_Units,'' and
``CSAPR_NUSA_2025_SO<INF>2</INF>_Final_Data_New_Units,'' which are
available online at <a href="https://www.epa.gov/csapr/csapr-allowance-allocations#nusa">https://www.epa.gov/csapr/csapr-allowance-allocations#nusa</a>. Each spreadsheet contains a separate worksheet for
every state covered by that program and shows, for each unit identified
as eligible for a NUSA allocation, (1) the unit's emissions in the 2025
control period (annual or ozone season, as applicable), (2) the maximum
2025 NUSA allowance allocation for the unit (typically the unit's
emissions in the 2025 control period), (3) various adjustments to the
unit's maximum allocation if the NUSA pool is oversubscribed, and (4)
the final calculation of the unit's 2025 NUSA allowance allocation.
Each state worksheet for new units also contains a summary showing
(1) the quantity of allowances initially available in that state's 2025
NUSA, (2) the sum of the 2025 NUSA allowance allocations to new units
in that state, assuming that there are no corrections to the data, and
(3) the quantity of allowances that would remain in the 2025 NUSA for
allocation to existing units, assuming that there are no corrections to
the data.
The EPA sets forth final calculations of allocations of the
remaining unallocated allowances to existing units in Excel
spreadsheets titled
``CSAPR_NUSA_2025_NO<INF>X</INF>_Annual_Final_Data_Existing_Units,''
``CSAPR_NUSA_2025_NO<INF>X</INF>_OS_Final_Data_Existing_Units,'' and
``CSAPR_NUSA_2025_SO<INF>2</INF>_Final_Data_Existing_Units,'' which are
available at the same online location.
The EPA notes that an allocated allowance, or lack thereof, to a
given unit under a CSAPR trading program does not constitute a
determination that the trading program does or does not apply to the
unit. The EPA also notes that, under 40 CFR 97.411(c), 97.511(c),
97.611(c), 97.711(c), and 97.811(c), allocations are subject to
potential correction if a unit with allocated allowances for a given
control period is not 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), and
97.811(b).)
David Cozzie,
Acting Director, Industrial Processing and Power Division, Office of
Clean Air Programs, Office of Air and Radiation.
[FR Doc. 2026-07299 Filed 4-14-26; 8:45 am]
BILLING CODE 6560-50-P
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