Document ID: EPA-R07-OAR-2021-0266-0001
Agency: epa
Document Type: Proposed Rule
Title: Air Quality State Implementation Plans; Approvals and Promulgations: Iowa; State Implementation Plan and State Plans for Designated Facilities and Pollutants
Posted Date: 2021-04-22T04:00Z

[Federal Register Volume 86, Number 76 (Thursday, April 22, 2021)]
[Proposed Rules]
[Pages 21254-21258]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-08278]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 70

[EPA-R07-OAR-2021-0266; FRL-10022-68-Region 7]

Air Plan Approval; Iowa; State Implementation Plan and State 
Plans for Designated Facilities and Pollutants

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve revisions to the Iowa State Implementation Plan (SIP) and is 
also proposing to approve revisions to the Iowa Operating Permit 
Program. The revisions include updating definitions, regulatory 
references, requiring facilities to submit electronic emissions 
inventory information under the state's Title V permitting program, and 
updating references for the most recent federally approved minimum 
specifications and quality assurance procedures for performance 
evaluations of continuous monitoring systems. EPA is also proposing to 
approve previous revisions to the Operating Permit Program that allow 
for electronic document submission that meet EPA's requirements. These 
revisions will not impact air quality and will ensure consistency 
between the state and Federally approved rules.

DATES: Comments must be received on or before May 24, 2021.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R07-
OAR-2021-0266 to https://www.regulations.gov. Follow the online 
instructions for submitting comments.
    Instructions: All submissions received must include the Docket ID 
No. for this rulemaking. Comments received will be posted without 
change to https://www.regulations.gov/, including any personal 
information provided. For detailed instructions on sending comments and 
additional information on the rulemaking process, see the ``Written 
Comments'' heading of the SUPPLEMENTARY INFORMATION section of this 
document.

FOR FURTHER INFORMATION CONTACT: Stephen Krabbe, Environmental 
Protection Agency, Region 7 Office, Air Quality and Planning Branch, 
11201 Renner Boulevard, Lenexa, Kansas 66219; telephone number: (913) 
551-7991 or by email at krabbe.stephen@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document ``we,'' ``us,'' and 
``our'' refer to EPA.

Table of Contents

I. Written Comments
II. What is being addressed in this document?
III. What SIP revisions are being proposed by EPA?
IV. What operating permit plan revisions are being proposed by EPA?
V. Have the requirements for approval of a SIP and the operating 
permits program revisions been met?
VI. What actions are proposed?
VII. Incorporation by Reference
VIII. Statutory and Executive Order Reviews

I. Written Comments

    Submit your comments, identified by Docket ID No. EPA-R07-OAR-2021-
0266, at https://www.regulations.gov. Once submitted, comments cannot 
be edited or removed from Regulations.gov. The EPA may publish any 
comment received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e., on the web, cloud, or other 
file sharing system). For additional submission methods, the full EPA 
public comment policy, information about CBI or multimedia submissions, 
and general guidance on making effective comments, please visit https://www.epa.gov/dockets/commenting-epa-dockets.

II. What is being addressed in this document?

    EPA is proposing to approve a submission from the State of Iowa to

[[Page 21255]]

revise its SIP and the Operating Permits Program. On August 12, 2020, 
the Iowa Department of Natural Resources (IDNR) submitted a request to 
revise the SIP to incorporate recent changes to Iowa Administrative 
Code, including provisions relating to electronic submittal of 
information to IDNR that were revised in previous state rulemakings. 
The following chapters are impacted:
     Chapter 20, ``Scope of Title--Definitions;''
     Chapter 22, ``Controlling Pollution;''
     Chapter 23, ``Emission Standards for Contaminants;''
     Chapter 25, ``Measurement of Emissions;'' and
     Chapter 33, ``Special Regulations and Construction Permit 
Requirements for Major Stationary Sources--Prevention of Significant 
Deterioration (PSD) of Air Quality.''
    The revision includes a request for EPA to approve references in 
Chapter 22 to allow for electronic submittal of air quality permit 
applications, streamlined alternatives to traditional applications, 
such as registrations, notifications, and template applications, 
construction permit applications, acid rain permit applications, 
notifications, emissions inventory, certifications, determination 
requests, fees, forms, and payments. Iowa previously submitted requests 
for EPA to approve these provisions into the SIP, but either 
subsequently withdrew the provisions or EPA did not propose to approve 
the revisions for reasons discussed in more detail below.
    The revision includes the new definitions of ``electronic format'', 
``electronic submittal'', and ``electronic submittal format''. The 
revisions also update the construction permit application provisions to 
specify the types of submittals that may be included in an electronic 
submittal option, updates methods and procedures for stack sampling and 
associated analytical methods, updates the definition of ``volatile 
organic compounds'' for prevention of significant deterioration (PSD) 
and updates the applicability of the PSD rule to construction of any 
new ``major stationary source''. The specific changes and EPA analysis 
are discussed in more detail below.
    In the August 12, 2020 submittal, the State included a request to 
revise the definition of ``anaerobic lagoons''. On February 3, 2021, 
the State clarified that it wished to exclude the definition of 
``anaerobic lagoons'' from its request to revise the SIP. EPA has not 
historically approved the definition of ``anaerobic lagoons'' into the 
Iowa SIP because the CAA does not regulate odors from these units; air 
releases (odors) from anaerobic lagoons are regulated by the state and 
local regulations.
    Sections 111 and 112 of the Clean Air Act (CAA) allow EPA to 
delegate authority to states for New Source Performance Standards 
(NSPS) and National Emission Standards for Hazardous Air Pollutants 
(NESHAPs). EPA has delegated authority to Iowa for approved portions of 
these sections of the CAA. Changes made to Iowa's Chapter 23 pertaining 
to new and revised NSPS and NESHAPs are not directly approved into the 
SIP, but rather, are adopted by reference. Thus, EPA is not proposing 
to approve these changes to Iowa Administrative Code into the state's 
SIP.

III. What SIP revisions are being proposed by EPA?

    EPA is proposing the following revisions to the Iowa SIP:
    Chapter 20, Subrule 20.1, Scope of Title-Definitions: The state 
revised the definition of ``EPA reference method'' to adopt methods for 
performance test (stack test) and continuous monitoring systems, 
approved by EPA on November 14, 2018. The update will ensure that state 
reference methods are equivalent to Federal reference methods; thus, 
EPA proposes to approve this change.
    Chapter 20, Subrule 20.1, Scope of Title-Definitions: The state 
also revised the definition of ``volatile organic compound'', or 
``VOC'' to adopt the definition in 40 CFR 51.100(s) as amended on 
November 18, 2018; thus, EPA proposes to approve this change.
    Chapter 20, Subrule 20.1, Scope of Title-Definitions: The state 
also adopted the new definition of ``electronic format'' in chapters 20 
through 35, to mean a software, internet-based, or other electronic 
means specified by the department for submitting information or fees. 
EPA proposes to approve this change.
    Chapter 22, subrules 22.1(3): Pursuant to the Cross Media 
Electronic Reporting Rule (CROMERR) (40 CFR part 3), EPA published a 
document on December 9, 2015 in the Federal Register, approving Iowa's 
State and Local Emissions Inventory System (SLEIS) for electronic 
reporting under Parts 51 and 70. 80 FR 76474 (December 9, 2015). As 
such, EPA is approving the following provision of subrule 22.1(3) which 
states,
    `` References to ``application(s)'', ``certification(s)'', 
``determination request(s)'', ``emissions inventory(ies)'', ``fees'', 
``form(s)'', ``notification(s)'', ``payment(s)'', ``permit 
application(s)'', and ``registration(s),'' in rules 567-22.1(455B) 
through 22.10(455B) may, as specified by the department, include 
electronic submittal . .''
    In addition, the new definition of ``electronic format'' has been 
adopted to allow electronic submittal of ``application(s),'' 
``certification(s),'' ``determination request(s),'' ``emissions 
inventory(ies),'' ``fees,'' ``form(s),'' ``notification(s),'' 
``payment(s),'' ``permit application(s),'' and ``registration(s)'' in 
rules 567-22.1(455B) through 567-22.10(455B).
    Chapter 25, Subrule 25.1(9) Measurement of Emissions: The State 
revised subrule 25.1(9),``Methods and Procedures,'' to adopt the 
performance test method as specified in 40 CFR part 51, appendix M (as 
amended through November 14, 2018); 40 CFR part 60, appendix A (as 
amended through November 14, 2018); 40 CFR part 61, appendix B (as 
amended through August 30, 2016); and 40 CFR part 63, appendix A (as 
amended through November 14, 2018). This subrule was also revised to 
adopt the minimum performance specifications and quality assurance 
procedures for performance evaluations of continuous monitoring systems 
as specified in 40 CFR part 60, appendix B (as amended through November 
14, 2018); 40 CFR part 60, appendix F (as amended November 14, 2018); 
40 CFR part 75, appendix A (as amended through August 30, 2016); 40 CFR 
part 75, appendix B (as amended through August 30, 2016); and 40 CFR 
part 75, appendix F (as amended through August 30, 2016). The proposed 
update will ensure that state reference methods are equivalent to 
Federal reference methods and are no more stringent than Federal 
methods; thus, EPA proposes to approve this change.

IV. What operating permits plan revisions are being proposed by EPA?

    EPA is proposing to approve the following revisions to the 
Operating Permits Program:
     Chapter 22, subrules 22.100(455B), and 22.120(455B): 
Pursuant to CROMERR), EPA published a document on January 31, 2020 in 
the Federal Register, approving Iowa's Environmental Application System 
for Air (EASY Air) for its operating permits program. January 31, 2020 
(85 FR 5657). As such, EPA is approving the new definition of 
``electronic format'' for the operating permits program to allow 
electronic submittal of ``application(s),'' ``certification(s),'' 
``determination request(s),'' ``emissions inventory(ies),'' ``fees,'' 
``form(s),'' ``notification(s),'' ``payment(s),'' ``permit 
application(s),'' and ``registration(s)'' in rules 567-22.100(455B) 
through 567-

[[Page 21256]]

22.116(455B), 567-22.120(455B) through 567-22.146(455B).
     Chapter 22, subrule 22.100(455B): Also as discussed above, 
the definition of ``EPA reference method'' has similarly been revised 
in definitions for the operating permits program to adopt performance 
test (stack test) and continuous monitoring systems specified by EPA in 
40 CFR part 51, appendix M (as amended through November 14, 2018); 40 
CFR part 60, appendix A (as amended through November 14, 2018); 40 CFR 
part 61, appendix B (as amended through August 30, 2016); and 40 CFR 
part 63, appendix A (as amended through November 14, 2018), 40 CFR part 
60, appendix B (as amended through November 14, 2018); 40 CFR part 60, 
appendix F (as amended through November 14, 2018); 40 CFR part 75, 
appendix A (as amended through August 30, 2016); 40 CFR part 75, 
appendix B (as amended through August 30, 2016); and 40 CFR part 75, 
appendix F (as amended through August 30, 2016). Referencing the 
updated method will ensure that state methods are equivalent to federal 
reference methods; thus, EPA proposes to approve this change.
     Chapter 22, subrule 22.128(4), Submission of copies: 
Revises the rule to require one copy of the acid rain permit 
application to either be submitted by mail to the air quality bureau or 
by electronic submittal. EPA proposes to approve this change.
     Chapter 33, Special Regulations and Construction Permit 
Requirements for Major Stationary Sources--Prevention of Significant 
Deterioration (PSD) of Air Quality: The State amended subrule 33.3(1) 
to include a definition of ``volatile organic compounds'' or ``VOC'', 
which means any compound included in the definition of ``volatile 
organic compounds'' found at 40 CFR 51.100(s) as amended through 
November 28, 2018.
     The state also amended 33.3(2) introductory paragraph, 
``Applicability'', to update the requirements of this rule (PSD program 
requirements), which apply to the construction of any new ``major 
stationary source'' as defined in subrule 33.3(1) or any project at an 
existing major stationary source in an area designated as attainment or 
unclassifiable under section 107(d)(1)(A)(ii) or (iii) of the Act. In 
addition to the provisions set forth in rules 567-33.3(455B) through 
567-33.9(455B), the provisions of 40 CFR part 51, appendix W (Guideline 
on Air Quality Models) as amended through January 17, 2017, are adopted 
by reference.
    In the cover letter of its August 12, 2020, SIP revision request, 
Iowa requested EPA approval of previously submitted rule changes for 
its electronic document receiving system (now ``Easy Air'') for 
construction and Title V permit applications, emissions reporting, and 
reporting for a component of its Title V program for Acid Rain.\1\ The 
items were previously placed on public notice and approved by the Iowa 
Environmental Protection Commission as noted below.
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    \1\ Iowa inadvertently requested approval of Rule 22.3(3) 
Conditions of approval (for construction permits), paragraph ``f'', 
third sentence, pertaining to electronic submittal methods for 
construction permits. EPA previously approved this provision in a 
direct final action. January 16, 2014 (79 FR 2787).
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     Rule 22.1(3), Construction Permits: The introductory 
paragraph, second sentence, which states, ``Alternatively, the owner or 
operator may apply for a construction permit for a new or modified 
stationary source through the electronic submittal method specified by 
the department.'' This subrule revision was requested by Iowa as Item 
#5 (ARC 7143 B) in a letter to EPA dated November 4, 2008, following 
public notice for a 30-day public comment period beginning February 4, 
2008. No comments were received. In EPA's Direct Final SIP approval 
dated December 29, 2009 (74 FR 248) EPA did not take action on this 
subrule revision because Iowa had not yet received approval for its 
electronic document receiving system as meeting the requirements of 
CROMERR. Iowa also placed the subrule revision on public notice for 
comment from January 18 through February 20, 2017. EPA commented that 
the submission of permit applications via email is not CROMERR 
compliant. Iowa requested an applicability determination from EPA which 
confirmed EPA's initial finding. In response to the applicability 
determination, Iowa amended its subrule to remove the provision for 
accepting permit applications via email and placed the revisions on 
public notice from August 16 through September 5, 2017. This 
information is detailed in EPA's proposed rulemaking dated July 26, 
2018 (83 FR 144).
     Subrule 22.105(1), Duty to Apply: Introductory paragraph, 
third sentence, which states, ``Alternatively, an owner or operator may 
submit a complete and timely application through the electronic 
submittal format specified by the department.'' This subrule revision 
was requested as Item #8 (ARC 7143 B) by Iowa in a letter to EPA dated 
November 4, 2008, following public notice for a 30-day public comment 
period beginning February 4, 2008. No comments were received. In EPA's 
Direct Final SIP approval dated December 29, 2009 (74 FR 248) EPA did 
not act on this subrule revision because Iowa had not yet received 
approval for its electronic document receiving system as meeting the 
requirements of the CROMERR. Iowa also placed this subrule revision on 
public notice for comment again from January 18 to February 20, 2017, 
and again from August 16 through September 5, 2017, due to a comment 
EPA had submitted on another subrule revision. No comments were 
received on the revision to subrule 22.105(1).
     Subrule 22.106(2) Emissions inventory and documentation 
due dates: Only sentence in this subrule, which states, ``The emissions 
inventory shall be submitted through the electronic format specified by 
the department.'' This subrule revision was made available for public 
comment from December 19, 2018 through January 22, 2019. No comments 
were received.
     Subrule 22.128(4), Submission of Copies (for approval into 
Acid Rain Program as a component of the Title V Program): The first 
sentence was revised to require one copy of the acid rain permit 
application to be submitted to the air quality bureau. In addition, 
Iowa requested approval of the sentence, which states, ``Alternatively, 
the designated representative may, as specified by the department, 
submit the application through electronic submittal.'' This subrule 
revision was listed as Item #7 in the public notice for this 
rulemaking; however, it was mistakenly listed on page 2 of the cover 
letter dated August 12, 2020, as a ``previously submitted rule 
change.'' Iowa issued a clarification to EPA by email dated March 15, 
2021, which has been included in the docket supporting this action, 
requesting EPA's approval of this subrule revision.
    Iowa published a Notice of Intent to Approve its electronic 
document receiving system for public comment from January 13 to 
February 15, 2010, and EPA approved Iowa's system as compliant with 
CROMERR. December 9, 2016 (80 FR 236). As noted above, each of these 
subrule revisions have been placed on public notice for review and 
comment. No adverse comments were received.

V. Have the requirements for approval of a SIP and the operating 
permits program revisions been met?

    The August 12, 2020 submission met the public notice requirements 
for SIP submissions in accordance with 40 CFR

[[Page 21257]]

51.102. The State held a public comment period from March 11 to April 
13, 2020, with a public hearing on April 13, 2020. No public comments 
were received.
    The items related to electronic submittal of permit applications 
and emissions inventories, were placed on public notice at various 
dates specified above. The supporting documentation has been included 
in the docket. The only comment made specifically regarding the 
language pertaining to Iowa's electronic document receiving system was 
made by EPA and was resolved by EPA's approval of Iowa's electronic 
document receiving systems pursuant to CROMERR requirements.
    The above submittals satisfy the completeness criteria of 40 CFR 
part 51, appendix V. In addition, these revisions meet the substantive 
SIP requirements of the CAA, including section 110 and implementing 
regulations. Finally, the revisions are also consistent with applicable 
EPA requirements of Title V of the CAA and 40 CFR part 70.

VI. What actions are proposed?

    EPA is proposing to approve revisions to the Iowa SIP and the 
Operating Permits Program. The proposed revisions update the 
definitions of ``EPA Reference Method'' and ``volatile organic 
compounds'', updates the definitions to adopt the most current EPA 
methods for measuring air pollutant emissions, performance testing, and 
continuous monitoring, and to reflect changes EPA has made to the 
definitions. Proposed revisions also add regulatory cross-references, 
and define ``electronic format,'' ``electronic submittal,'' and 
``electronic submittal format'' to facilitate the Department's launch 
of EASY Air, a new online electronic method for submitting air quality 
permit applications.
    EPA has determined that approval of these revisions will not impact 
air quality and will ensure consistency between the state and 
federally-approved rules, and ensure Federal enforceability of the 
state's revised air program rules.

VII. Incorporation by Reference

    In this document, EPA is proposing to include regulatory text in an 
EPA final rule that includes incorporation by reference. In accordance 
with requirements of 1 CFR 51.5, EPA is proposing to incorporate by 
reference the Iowa Regulations described in the proposed amendments to 
40 CFR part 52 set forth below. EPA has made, and will continue to 
make, these materials generally available through www.regulations.gov 
and at the EPA Region 7 Office (please contact the person identified in 
the FOR FURTHER INFORMATION CONTACT section of this preamble for more 
information).

VIII. Statutory and Executive Order Reviews

    Under the Clean Air Act (CAA), the Administrator is required to 
approve a SIP submission that complies with the provisions of the Act 
and applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). 
Thus, in reviewing SIP submissions, EPA's role is to approve state 
choices, provided that they meet the criteria of the CAA. Accordingly, 
this action merely approves state law as meeting Federal requirements 
and does not impose additional requirements beyond those imposed by 
state law. For that reason, this action:
     Is not a significant regulatory action subject to review 
by the Office of Management and Budget under Executive Orders 12866 (58 
FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 2011);
     Does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     Does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     Does not have Federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     Is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the CAA; and
     Does not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    The SIP is not approved to apply on any Indian reservation land or 
in any other area where EPA or an Indian tribe has demonstrated that a 
tribe has jurisdiction. In those areas of Indian country, the rule does 
not have tribal implications and will not impose substantial direct 
costs on tribal governments or preempt tribal law as specified by 
Executive Order 13175 (65 FR 67249, November 9, 2000).

List of Subjects

40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Particulate matter, Reporting 
and recordkeeping requirements, Volatile organic compounds.

40 CFR Part 70

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Intergovernmental relations, Operating permits, 
Reporting and recordkeeping requirements.

    Dated: April 15, 2021.
Edward H. Chu,
Acting Regional Administrator, Region 7.

    For the reasons stated in the preamble, EPA proposes to amend 40 
CFR parts 52 and 70 as set forth below:

PART 52--APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS

0
1. The authority citation for part 52 continues to read as follows:

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

Subpart Q--Iowa

0
2. In Sec.  52.820, the table in paragraph(c) is amended by revising 
the entries ``567-20.1'', ``567-22.1'', ``567-25.1'', and ``567-33.3'' 
to read as follows:

Sec.  52.820  Identification of plan.

* * * * *
    (c) * * *

[[Page 21258]]

                                          EPA-Approved Iowa Regulations
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                                                         State
       Iowa citation                 Title          effective date    EPA approval date         Explanation
----------------------------------------------------------------------------------------------------------------
                 Iowa Department of Natural Resources, Environmental Protection Commission [567]
----------------------------------------------------------------------------------------------------------------
                                     Chapter 20--Scope of Title--Definitions
----------------------------------------------------------------------------------------------------------------
567-20.1...................  Scope of Title--            7/22/2020  [Date of publication   The definitions for
                              Definitions.                           of the final rule in   ``anaerobic
                                                                     the Federal            lagoon,'' ``odor,''
                                                                     Register], [Federal    ``odorous
                                                                     Register citation of   substance,''
                                                                     the final rule].       ``odorous substance
                                                                                            source'' are not SIP
                                                                                            approved.
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                                        Chapter 22--Controlling Pollution
----------------------------------------------------------------------------------------------------------------
567-22.1...................  Permits Required for        7/22/2020  [Date of publication
                              New or Stationary                      of the final rule in
                              Sources.                               the Federal
                                                                     Register], [Federal
                                                                     Register citation of
                                                                     the final rule].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                                      Chapter 25--Measurement of Emissions
----------------------------------------------------------------------------------------------------------------
567-25.1...................  Testing and Sampling        7/22/2020  [Date of publication
                              of New and Existing                    of the final rule in
                              Equipment.                             the Federal
                                                                     Register], [Federal
                                                                     Register citation of
                                                                     the final rule].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
Chapter 33--Special Regulations and Construction Permit Requirements for Major Stationary Sources--Prevention of
                                 Significant Deterioration (PSD) of Air Quality
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
567-33.3...................  Special Construction        7/22/2020  [Date of publication   Provisions of the
                              Permit Requirements                    of the final rule in   2010 PM2.5 PSD--
                              for Major Stationary                   the Federal            Increments, SILs and
                              Sources in Areas                       Register], [Federal    SMCs rule, published
                              Designated                             Register citation of   in the Federal
                              Attainment or                          the final rule].       Register on October
                              Unclassified (PSD).                                           20, 2010, relating
                                                                                            to SILs and SMCs
                                                                                            that were affected
                                                                                            by the January 22,
                                                                                            2013, U.S. Court of
                                                                                            Appeals decision are
                                                                                            not, at the state's
                                                                                            request, included in
                                                                                            Iowa's SIP
                                                                                            provisions (see
                                                                                            Federal Register,
                                                                                            March 14, 2014)
                                                                                            (Vol. 79, No. 50).
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

* * * * *

PART 70--STATE OPERATING PERMIT PROGRAMS

0
3. The authority citation for part 70 continues to read as follows:

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

0
4. In appendix A to part 70 the entry for ``Iowa'' is amended by adding 
paragraph (w) to read as follows:

Appendix A to Part 70--Approval Status of State and Local Operating 
Permits Programs

* * * * *

Iowa

* * * * *
    (w) The Iowa Department of Natural Resources submitted for 
program approval revisions to rules 567-22.100, 567-22.120, 567-
22.105(1), 567-22.106(2), and 567-22.128(4). The state effective 
date for 567-22.105(1) and 567-22.106(2) is April 17, 2019. The 
state effective date for 567-22.100, 567-22.120, and 567-22.128(4) 
is July 22, 2020. This revision is effective [date 60 days after 
date of publication of the final rule in the Federal Register].
* * * * *
[FR Doc. 2021-08278 Filed 4-21-21; 8:45 am]
BILLING CODE 6560-50-P