[Federal Register Volume 91, Number 93 (Thursday, May 14, 2026)]
[Rules and Regulations]
[Pages 27219-27222]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2026-09615]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 62

[EPA-R10-OAR-2026-0694; FRL-13223-01-R10]


Approval and Promulgation of Delegation of Authority for 
Designated Facilities and Pollutants; Washington; Northwest Clean Air 
Agency

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: The Environmental Protection Agency (EPA) is approving 
delegation of authority to the Northwest Clean Air Agency (NWCAA) for 
implementing and enforcing the Federal plan requirements for sewage 
sludge incineration (SSI) units. The Federal plan addresses the 
implementation and enforcement of emission limits and other control 
requirements for designated air pollutants. On December 11, 2018, the 
EPA Region 10 Regional Administrator and the Executive Director of 
NWCAA signed a Memorandum of Agreement (MOA) concerning delegation of 
authority of the Federal plan to NWCAA, which became effective upon 
signature. The geographic area covered by this MOA comprises Island, 
Skagit, and Whatcom Counties in the State of Washington, except in 
Indian country. This document informs the public of the MOA, provides a 
copy of the signed document, and amends regulatory text in accordance 
with the Clean Air Act (CAA).

DATES: This final rule is effective on May 14, 2026.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-R10-OAR-2026-0694. All documents in the docket are 
listed on the website. Although listed in the index, some information 
is not publicly available, e.g., Confidential Business Information, 
Proprietary Business Information, or other information whose disclosure 
is restricted by statute. Certain other material, such as copyrighted 
material, is not placed on the internet and will be publicly available 
only in hard copy form. Publicly available docket materials are 
available electronically through https://www.regulations.gov.

FOR FURTHER INFORMATION CONTACT: Jeff Hunt, EPA Region 10, 1200 Sixth 
Avenue, Suite 155, Seattle, WA 98101, at (206) 553-0256 or 
[email protected].

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,'' 
``us,'' or ``our'' is used, we mean ``the EPA.''

I. Background

    Section 129 of the CAA, titled, ``Solid Waste Combustion,'' 
requires the EPA to develop and adopt standards for solid waste 
incineration units pursuant to CAA section 111. Section 111 of the CAA, 
``Standards of Performance for New Stationary Sources,'' directs the 
EPA to establish emission standards for stationary sources of air 
pollution that could potentially endanger public health or welfare. 
These standards are referred to as the New Source

[[Page 27220]]

Performance Standards (NSPS). Section 111(b) directs the EPA to publish 
and periodically revise a list of categories of stationary sources 
which cause or significantly contribute to air pollution, and to 
establish the NSPS within these categories. Section 111(d) addresses 
the process by which the EPA and States regulate standards of 
performance for existing sources belonging to those categories 
established in section 111(b). When the NSPS are promulgated for new 
sources, section 111(d) of this CAA and the EPA regulations require 
that the EPA publish an Emission Guideline (EG) to regulate the same 
pollutants from existing facilities. While the NSPS are directly 
applicable to new sources, an EG for an existing source (designated 
facility) is intended for States to use to develop a State plan to 
submit to the EPA. CAA section 111 and 40 CFR 60.27(c) and (d) require 
the EPA to develop, implement, and enforce a Federal plan for 
designated facilities located in any State or Indian country that does 
not have an approved State plan under CAA section 111 that implements 
the EG. These Federal plans are published in 40 CFR part 62 Approval 
and Promulgation of State Plans for Designated Facilities and 
Pollutants.
    A State, or local clean air agency in this case, may then meet its 
CAA section 111(d) obligations by submitting a formal written request 
for delegation of authority to implement and enforce the Federal plans. 
On July 26, 2017, NWCAA requested delegation of authority to implement 
and enforce the following Federal plan in 40 CFR part 62:
     Subpart LLL: Federal Plan for Sewage Sludge Incineration 
Units Constructed on or before October 14, 2010, in lieu of the 
requirement to submit a State plan pursuant to 40 CFR part 60, subpart 
MMMM: Emission Guidelines and Compliance Times for Existing Sewage 
Sludge Incineration Units.
    The criteria for delegation of the Federal plan for SSI units are 
found in the emission guidelines for SSI units at 40 CFR 60.5045(a) and 
repeated in the Federal plan for SSI units at 40 CFR 62.15865(a). The 
framework for the EPA to transfer implementation and enforcement 
authority requires the State or local agency to request delegation 
through a letter that:
     Demonstrates the State or local agency has adequate 
resources, as well as the legal authority, to administer and enforce 
the program;
     Includes an inventory of designated facilities and an 
inventory of the designated units' air emissions;
     Certifies a public hearing was held on the State or local 
agency delegation request; and
     A commitment to enter into an MOA between the State or 
local agency and the EPA that sets forth the terms and conditions of 
the delegation, the effective date of the agreement, and the mechanism 
to transfer authority.
    Upon signature of the agreement, the approved document will be 
published in the Federal Register, thereby incorporating the delegation 
of authority into the appropriate subpart of 40 CFR part 62.

II. Memorandum of Agreement Contents and the EPA Analysis

    The EPA has evaluated NWCAA's Federal plan delegation request 
submittal to determine whether the package meets the applicable 
requirements. The EPA's detailed rationale and discussion on the 
submittal can be found in the Technical Support Document (TSD), located 
in the docket for this action. The applicable provisions and the EPA's 
analysis are briefly summarized as follows:
     NWCAA demonstrated adequate resources and legal authority 
to administer Federal plans. NWCAA is the operating permitting 
authority and the new source review permitting authority in non-Tribal 
land \1\ in Island, Skagit, and Whatcom counties \2\ and has the 
authority to implement and enforce delegated standards in 40 CFR parts 
60, 61, and 63. NWCAA provided a letter from legal counsel identifying 
statutes in the Revised Code of Washington giving NWCAA the authority 
to promulgate rules and regulations; carry out the Federal plan; adopt 
emission limits and compliance schedules; enforce applicable laws, 
regulations standards and compliance schedules; obtain information to 
determine compliance; and require the installation of control 
equipment.
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    \1\ Our approval excludes Indian country as defined in 18 U.S.C. 
1151. Under this definition, the EPA treats as reservations trust 
lands validly set aside for the use of a Tribe even if the trust 
lands have not been formally designated as a reservation.
    \2\ Under State law NWCAA's jurisdiction excludes facilities 
subject to Energy Facilities Site Evaluation Council (EFSEC) 
jurisdiction; facilities subject to the Washington Department of 
Ecology's direct jurisdiction under Chapters 173-405, 173-410, and 
173-415 Washington Administrative Code (WAC); and the Prevention of 
Significant Deterioration (PSD) permitting of facilities subject to 
the applicability sections of WAC 173-400-700.
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     NWCAA provided an inventory of SSI units subject to the 
SSI Federal plan and the results of recent emissions tests.
     NWCAA held a public comment period lasting from June 7 to 
July 14, 2017, ending with a public hearing on July 13, 2017. No member 
of the public attended the hearing and NWCAA received no comments 
during the public comment period.
     NWCAA committed to enter an MOA to meet the requirements 
for delegation of the Federal plan for SSI units.
    The MOA was signed by the EPA Region 10 Regional Administrator and 
the NWCAA Executive Director on December 11, 2018, and became effective 
upon signature. The effective MOA applies to the designated facilities 
within NWCAA's jurisdiction and is not implemented and enforced on 
Indian land.
    The EPA has evaluated NWCAA's submittal for consistency with the 
CAA, EPA regulations, and EPA policy. The EPA determined that NWCAA has 
met all the requirements of the EPA's guidance for obtaining the 
delegation of authority to implement and enforce the Federal plan.

III. Good Cause Findings

    Section 553(b)(B) of the Administrative Procedure Act, 5 U.S.C. 
553(b)(B), provides that, when an agency for good cause finds that 
public notice and comment procedures are impracticable, unnecessary, or 
contrary to the public interest, the agency may issue a rule without 
providing notice and an opportunity for public comment. The EPA has 
determined that there is good cause for making this rule final without 
prior proposal and opportunity for comment because such notice and 
opportunity for comment is unnecessary.
    The EPA conducted full notice and comment rulemaking in 
promulgating the Federal plan (40 CFR part 62, subpart LLL). The EPA 
has already approved the delegation of authority to implement and 
enforce the Federal plan to NWCAA, effective following the signature of 
both parties on the MOA. NWCAA also held a public hearing and solicited 
public comment about the request for delegation of authority, pursuant 
to the requirements in 40 CFR 60.23(d), 60.23(e), and 62.15865(a)(3). 
Notice and comment are ``unnecessary'' as this final rule only takes 
the ministerial action of updating the regulatory text in 40 CFR part 
62 to reflect this transfer of authority. It does not alter the 
universe of sources regulated under the Federal plan and it does not 
change the regulatory requirements applicable to those sources.
    Section 553(d)(3) of the Administrative Procedures Act, 5 U.S.C. 
553(d)(3), provides that the required publication of service of a 
substantive

[[Page 27221]]

rule shall be made not less than 30 days before its effective date, 
except as otherwise provided by the agency for good cause found and 
published with the rule. The EPA has determined that there is good 
cause for this rule to become effective upon publication. Delaying the 
effective date is unnecessary and contrary to the public interest 
because the EPA has already approved the delegation of authority to 
implement and enforce the Federal plan to NWCAA, effective following 
the signature of both parties on the MOA. In addition, this rulemaking 
does not affect any of the substantive requirements in the delegated 
Federal plan nor impact the compliance obligations of any sources 
subject to the Federal plans.

IV. Final Action

    The EPA is amending regulatory text at 40 CFR part 62, subpart WW--
Washington, to promulgate the approved delegation of authority through 
the MOA to NWCAA for implementing and enforcing Federal plan 
requirements under 40 CFR part 62, subpart LLL.

V. Statutory and Executive Order Reviews

    Under the CAA, the Administrator has the authority to delegate the 
authority to implement a CAA section 111(d) Federal plan that complies 
with the provisions of the CAA and applicable Federal regulations. (40 
CFR 60.27). In reviewing CAA section 111(d) delegation requests, the 
EPA's role is to approve State choices, provided they meet the criteria 
of the CAA and the EPA's implementing regulations. Accordingly, this 
action merely codifies in the Code of Federal Regulations the EPA's 
delegation of authority to implement the Federal plan and does not 
impose additional requirements beyond those imposed by the already 
applicable Federal plan.

A. Executive Order 12866: Regulatory Planning and Review

    This action is not a significant regulatory action and was 
therefore not submitted to the Office of Management and Budget (OMB) 
for review.

B. Executive Order 14192: Unleashing Prosperity Through Deregulation

    This action is not an Executive Order 14192 (90 FR 9065, February 
6, 2025) regulatory action because this action is not significant under 
Executive Order 12866.

C. Paperwork Reduction Act

    This rule does not impose an information collection burden under 
the provisions of the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 
et seq.).

D. Regulatory Flexibility Act

    This action merely codifies in the approval of the transfer of 
authority from EPA to NWCAA for the SSI units Federal plan. 
Accordingly, the Administrator certifies that this rule will not have a 
significant economic impact on a substantial number of small entities 
under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.).

E. Unfunded Mandates Reform Act (UMRA)

    This action does not contain any unfunded mandate as described in 
UMRA, 2 U.S.C. 1531-1538, and does not significantly or uniquely affect 
small governments. This action does not impose additional requirements 
beyond those imposed by the already-applicable Federal plan. 
Accordingly, no additional costs to State, local, or Tribal 
governments, or to the private sector, will result from this action.

F. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have 
substantial direct effects on the States, on the relationship between 
the national government and the States, or on the distribution of power 
and responsibilities among the various levels of government.

G. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    Executive Order 13175 (65 FR 67249, November 9, 2000), requires the 
EPA to develop an accountable process to ensure ``meaningful and timely 
input by tribal officials in the development of regulatory policies 
that have tribal implications.'' This rule does not have Tribal 
implications, as specified in Executive Order 13175. It will not have 
substantial direct effects on Tribal governments. Thus, Executive Order 
13175 does not apply to this rule.

H. Executive Order 13045: Protection of Children From Environmental 
Health and Safety Risks

    This action is not subject to Executive Order 13045 because it is 
not 3(f)(1) significant as defined in Executive Order 12866, and 
because the EPA does not believe the environmental health or safety 
risks addressed by this action present a disproportionate risk to 
children.

I. Executive Order 13211: Actions That Significantly Affect Energy 
Supply, Distribution, or Use

    This action is not subject to Executive Order 13211 (66 FR 28355 
(May 22, 2001)), because it is not a significant regulatory action 
under Executive Order 12866.

J. National Technology Transfer Advancement Act

    This rule does not involve technical standards and is therefore not 
subject to the requirements of section 1(d) of the National Technology 
Transfer and Advancement Act of 1995 (15 U.S.C. 272 note).

K. Congressional Review Act

    This action is subject to the Congressional Review Act, and the EPA 
will submit a rule report to each House of the Congress and to the 
Comptroller General of the United States. This action is not a ``major 
rule'' as defined by 5 U.S.C. 804(2).

L. Judicial Review

    Under section 307(b)(1) of the CAA, petitions for judicial review 
of this action must be filed in the United States Court of Appeals for 
the appropriate circuit by July 13, 2026. Filing a petition for 
reconsideration by the Administrator of this final rule does not affect 
the finality of this rule for the purposes of judicial review nor does 
it extend the time within which a petition for judicial review may be 
filed, and shall not postpone the effectiveness of such rule or action. 
This action may not be challenged later in proceedings to enforce its 
requirements. See section 307(b)(2).

List of Subjects in 40 CFR Part 62

    Environmental Protection, Administrative practice and procedure, 
Air pollution control, Intergovernmental relations, Landfills, 
Reporting and recordkeeping requirements, Waste treatment and disposal.


    Dated: May 5, 2026.
Emma Pokon,
Regional Administrator, Region 10.
    For the reasons set forth in the preamble, 40 CFR part 62 is 
amended as follows:

PART 62--APPROVAL AND PROMULGATION OF STATE PLANS FOR DESIGNATED 
FACILITIES AND POLLUTANTS

0
1. The authority citation for part 62 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.

[[Page 27222]]

Subpart WW--Washington

0
2. Revise Sec.  62.11893 to read as follows:


Sec.  62.11893  Identification of plan-delegation of authority.

    (a) Northwest Clean Air Agency--(1) Identification of plan--
delegation of authority. On December 11, 2018, the EPA signed a 
Memorandum of Agreement (MOA) that defines policies, responsibilities, 
and procedures pursuant to 40 CFR part 62, subpart LLL (the ``Federal 
plan'') by which the Federal plan will be administered by the Northwest 
Clean Air Agency (NWCAA) for designated facilities under the agency's 
jurisdiction in Island, Skagit, and Whatcom Counties in the State of 
Washington, excluding Indian Country as defined in 18 U.S.C. 1151.
    (2) Identification of sources. The MOA and related Federal plan 
apply to all sewage sludge incineration (SSI) units, as defined in 
Sec.  62.16045, that commenced construction on or before October 14, 
2010. See Sec.  62.15855. Subpart LLL does not apply to units that are 
not located at wastewater treatment plants designed to treat domestic 
sewage sludge. See 40 CFR 62.15860.
    (3) Effective date of delegation. The delegation became fully 
effective on December 11, 2018, upon the signature of both parties.
    (b) Southwest Clean Air Agency--(1) Identification of plan--
delegation of authority. On March 27, 2023, the EPA signed a Memorandum 
of Agreement (MOA) that defines policies, responsibilities, and 
procedures pursuant to 40 CFR part 62, subpart LLL (the ``Federal 
plan'') by which the Federal plan will be administered by the Southwest 
Clean Air Agency (SWCAA) for designated facilities under the agency's 
jurisdiction in Clark, Cowlitz, Lewis, Skamania, and Wahkiakum Counties 
in the State of Washington, excluding Indian Country as defined in 18 
U.S.C. 1151.
    (2) Identification of sources. The MOA and related Federal plan 
apply to all sewage sludge incineration (SSI) units, as defined in 
Sec.  62.16045, that commenced construction on or before October 14, 
2010. See Sec.  62.15855. Subpart LLL does not apply to units that are 
not located at wastewater treatment plants designed to treat domestic 
sewage sludge. See 40 CFR 62.15860.
    (3) Effective date of delegation. The delegation became fully 
effective on March 28, 2023, upon the signature of both parties.

[FR Doc. 2026-09615 Filed 5-13-26; 8:45 am]
BILLING CODE 6560-50-P