[Federal Register Volume 87, Number 97 (Thursday, May 19, 2022)]
[Proposed Rules]
[Pages 30437-30442]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-10688]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R07-OAR-2022-0419; FRL-9830-01-R7]


Air Plan Approval; Missouri; St. Louis Area Vehicle Inspection 
and Maintenance Program

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve, through parallel processing, revisions to the Missouri State 
Implementation Plan (SIP) relating to the St. Louis area's vehicle 
Inspection and Maintenance (I/M) Program received on November 12, 2019, 
and March 2, 2022. In the submissions, Missouri requests EPA approval 
of revisions to a regulation and related plan that implement the St. 
Louis area's Inspection and Maintenance program called, Gateway Vehicle 
Inspection Program (GVIP). We propose to approve Missouri's removal of 
vehicles registered in Franklin County, unless the vehicle is primarily 
operated in the rest of the area, from the Gateway Vehicle Inspection 
program. The revisions to this rule include amending the rule exemption 
section for vehicles subject to the rule, removing unnecessary words, 
amending definitions specific to the rule, updates due to technology 
changes, and other minor edits. These revisions do not impact the 
attainment of any National Ambient Air Quality Standard (NAAQS) nor 
delay the timely attainment of 2015

[[Page 30438]]

Ozone National Ambient Air Quality Standard. Approval of these 
revisions will ensure consistency between state and federally approved 
rules.

DATES: Comments must be received on or before June 21, 2022.

ADDRESSES: You may send comments, identified by Docket ID No. EPA-R07-
OAR-2022-0419 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: Jed D. Wolkins, Environmental 
Protection Agency, Region 7 Office, Air Quality Planning Branch, 11201 
Renner Boulevard, Lenexa, Kansas 66219; telephone number: (913) 551-
7588; email address: <a href="/cdn-cgi/l/email-protection#d0a7bfbcbbb9bea3febab5b490b5a0b1feb7bfa6"><span class="__cf_email__" data-cfemail="7b0c14171012150855111e1f3b1e0b1a551c140d">[email protected]</span></a>.

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

Table of Contents

I. Written Comments
II. Parallel Processing
III. History and Current Status of St. Louis Area Air Quality
IV. Background of Missouri's I/M Program
V. What is being addressed in this document?
VI. Have the requirements for approval of a SIP revision been met?
VII. What is the EPA's analysis of Missouri's SIP request?
VIII. What action is the EPA proposing to take?
IX. Environmental Justice Concerns
X. Incorporation by Reference
XI. Statutory and Executive Order Reviews

I. Written Comments

    Submit your comments, identified by Docket ID No. EPA-R07-OAR-2022-
0419, 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. Parallel Processing

    Parallel processing refers to a process that utilizes concurrent 
state and federal proposed rulemaking actions, consistent with the 
provisions of 40 CFR part 51, appendix V. Generally, the state submits 
a copy of the proposed regulation or other revisions to EPA before 
conducting its public hearing and completing its public comment process 
under state law. EPA reviews this proposed state action and prepares a 
notice of proposed rulemaking (NPRM) under federal law.\1\ If, after 
the state completes its public comment process and after EPA's public 
comment process, the state changes its final submittal from the 
proposed submittal, EPA evaluates those changes and decides whether to 
publish another NPRM in light of those changes or to proceed to taking 
final action on its proposed action and describe the state's changes in 
its final rulemaking action. Any final rulemaking action by EPA will 
occur only after the final submittal has been adopted by the state and 
formally submitted to EPA.
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    \1\ Although not the case in this proposed rulemaking, in some 
instances, EPA's NPRM is published in the Federal Register during 
the same time frame that the state is holding its public hearing and 
conducting its public comment process. The state and EPA then 
provide for concurrent public comment periods on both the state 
action and federal action.
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    Missouri's November 12, 2019 submittal has been adopted by the 
state and formally provided to EPA. Missouri's public comment process 
has been completed for its March 2, 2022 submittal, but the 
implementing state regulation in the submittal has not been formally 
submitted by the state to EPA. In accordance with the parallel 
processing provisions in section 2.3.1 of 40 CFR part 51, appendix V, 
the State has been provided an opportunity to consider EPA comments 
prior to submission of a final plan for EPA's review and has submitted 
a schedule for final submittal of the state regulation. Specifically, 
Missouri's schedule includes publication of the order of rulemaking in 
the Missouri Register on April 15, 2022. The final state regulation was 
published in Missouri's Code of State Regulations (CSR) on April 30, 
2022 and will become effective 30 days later on May 30, 2022. Missouri 
anticipates formally submitting the regulation package to EPA shortly 
after the rule's publication in the CSR. Because the State has 
satisfied all requirements for parallel processing concerning the March 
2, 2022, submittal, EPA proposes to approve the submittal through 
parallel processing. If the State changes the final submittal from the 
version that we are proposing to approve today, EPA will evaluate the 
significance of those changes. If EPA finds any such changes to be 
significant, then the Agency intends to determine whether to re-propose 
based on the revised submission or proceed to take final action on the 
submittal as modified by the State.

III. History and Current Status of St. Louis Area Air Quality

    The St. Louis, Missouri-Illinois bi-state area, which has been 
designated as nonattainment for several prior Ozone NAAQS, has 
historically included the counties of Franklin, Jefferson, St. Charles, 
and St. Louis and St. Louis City in Missouri, and the counties of 
Madison, Monroe and St. Clair in Illinois (hereafter referred to as the 
St. Louis area unless otherwise noted). For all Ozone NAAQS, except for 
the 2015 Ozone NAAQS, the St. Louis area has been redesignated to 
attainment as described in this section.
    On May 12, 2003, EPA redesignated the St. Louis area from Serious 
nonattainment to attainment for the 1979 Ozone NAAQS. (68 FR 25418). On 
June 15, 2005, EPA revoked the 1979 1-hour Ozone NAAQS for all areas 
except the 8-hour Ozone nonattainment early action compact (EAC) areas. 
(70 FR 44470). The St. Louis area did not participate in the EAC and 
therefore, the 1-hour standard was revoked for all areas in Missouri 
effective June 15, 2005.
    On February 20, 2015, EPA redesignated the St. Louis area from 
Moderate nonattainment to attainment for the 1997 8-hour Ozone NAAQS. 
(80 FR 9207). On March 6, 2015, EPA revoked the 1997 8-hour Ozone 
NAAQS. (80 FR 12264).
    On September 20, 2018, EPA redesignated the St. Louis area from 
Moderate nonattainment to attainment for the 2008 8-hour Ozone NAAQS. 
(83 FR 47572). The 2008 8-hour Ozone NAAQS has not been revoked.
    On April 30, 2018, EPA designated Boles Township of Franklin 
County, St. Charles County, St. Louis County, and St. Louis City as 
Marginal

[[Page 30439]]

nonattainment for the 2015 Ozone NAAQS. (83 FR 25776) As part of that 
same action, EPA designated Jefferson County and the remaining portion 
of Franklin County as attainment/unclassifiable. On July 10, 2020, the 
District of Columbia Circuit Court remanded the Jefferson County 
designation (among other designations) back to the EPA. The Court 
upheld EPA's designation of Boles Township as nonattainment and the 
remainder of Franklin County as attainment/unclassifiable. In response 
to the Court remand, the EPA revised the Jefferson County designation 
to nonattainment on May 26, 2021. (86 FR 31438) On November 16, 2017, 
EPA designated all areas of Missouri except the St. Louis area as 
attainment/unclassifiable for the 2015 8-hour Ozone NAAQS. (82 FR 
54232)
    On March 29, 1999, EPA redesignated a portion of St. Louis County 
and St. Louis City from nonattainment to attainment for the 1971 Carbon 
Monoxide (CO) NAAQS. (64 FR 3855).
    On August 3, 2018, EPA redesignated Franklin County, Jefferson 
County, St. Charles County, St. Louis County, and St. Louis City from 
nonattainment to attainment for the 1997 Annual Fine Particulate Matter 
(PM<INF>2.5</INF>) NAAQS. (83 FR 38033).
    A portion of Jefferson County is currently designated nonattainment 
for both the 2008 and 1978 Lead NAAQS. This nonattainment area is 
currently monitoring compliance with both the 1978 and 2008 Lead 
NAAQS.\2\ The rest of the St. Louis Area is designated attainment/
unclassifiable for both the 2008 and 1978 Lead NAAQS.
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    \2\ See file titled Herculaneum AQS Report in Docket.
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    On January 28, 2022, EPA redesignated a portion of Jefferson County 
from nonattainment to attainment for the 2010 1-hour SO<INF>2</INF> 
NAAQS. (87 FR 4508). The rest of the St. Louis Area is designated as 
either attainment or unclassifiable for the 2010 SO<INF>2</INF> NAAQS.
    The St. Louis Area is designated attainment/unclassifiable for all 
other NAAQS.

IV. Background of Missouri's I/M Program

    Under section 182 (b)(4),(c), and (d) of the CAA, vehicle I/M 
programs are required for areas that are classified as Moderate or 
above nonattainment for Ozone. As a result, Missouri has previously 
submitted, and the EPA has previously approved into the SIP an I/M 
program for the St. Louis Area of Franklin County, Jefferson County, 
St. Charles County, St. Louis County, and St. Louis City.\3\ At the 
time of the program's inception, the program was based on tailpipe 
testing. In 2000, the EPA approved Missouri's switch to On Board 
Diagnostic testing for the same geographic area, consistent with our 
regulations and section 182 of the CAA.\4\
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    \3\ 50 FR 32411, August 12, 1985.
    \4\ 65 FR 62295, May, 18, 2000.
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V. What is being addressed in this document?

    The EPA is proposing to approve, through parallel processing, 
revisions to the Missouri SIP received on November 12, 2019 and March 
2, 2022. In the November 12, 2019, submission, Missouri requested EPA 
approval of revisions to the vehicle I/M Program also known as GVIP, 
for the St. Louis area. The revisions remove both Franklin and 
Jefferson Counties from the GVIP; however, the EPA is only proposing to 
take action on the removal of Franklin County from the GVIP in 
accordance with a request from Missouri.
    At the time of the November 12, 2019 submission, Missouri had not 
yet revised the implementing GVIP regulations nor provided supplemental 
emission controls to offset the emission increases resulting from 
ceasing vehicle emission inspections in the Boles Township portion of 
the nonattainment area, in accordance with CAA section 110(l). EPA's 
longstanding position is that the implementing rule revision and 
supplemental emission controls, for the nonattainment area, are needed 
for EPA approval. This position is consistent with the CAA, our 
implementing regulations, and our previous approvals of I/M removal 
across the nation.
    At the time of Missouri's November 12, 2019 submission, Jefferson 
County was designated as attainment/unclassifiable for the 2015 Ozone 
NAAQS. As a result of the May 26, 2021 EPA designation for Jefferson 
County to nonattainment, Missouri requested that EPA act on the removal 
of Franklin County from the GVIP plan and postpone action on the 
removal of Jefferson County from the GVIP plan via a letter dated 
December 6, 2021.\5\ Missouri would need to provide further 
supplemental emission controls for us to be able to propose approving 
the removal of I/M in Jefferson County as long as the County remains 
designated nonattainment. Additionally, in response to comment from EPA 
on the draft rulemaking, Missouri limited the implementing regulation's 
exemption to Franklin County as opposed to exempting both Franklin and 
Jefferson Counties.
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    \5\ Missouri's December 6, 2021 letter to EPA is included in the 
docket for this action.
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    On March 2, 2022, Missouri submitted a draft SIP revision 
supplementing the November 12, 2019 submittal, along with a parallel 
processing request. The March 2, 2022 submittal included both the 
revised implementing rule, 10 CSR 10-5.381, and supplemental emission 
controls to offset the increased emissions in the Boles Township 
portion of Franklin County that is designated as nonattainment for the 
2015 Ozone NAAQS. The revision to 10 CSR 10-5.381 adds an exemption for 
vehicles registered in Franklin County from the program unless the 
vehicles are primarily operated in the remainder of nonattainment area. 
The revisions to this rule include amending the rule exemption section 
for vehicles subject to the rule, removing unnecessary words, amending 
definitions specific to the rule, and other minor edits. The EPA is 
proposing to approve the portion of the November 12, 2019 GVIP Plan 
relating to Franklin County, St. Charles County, St. Louis County, and 
St. Louis City, by approving the removal of Franklin County from the I/
M program, and fully approve the revisions to 10 CSR 10-5.381.
    In accordance with Missouri's December 6, 2021, letter, the EPA is 
not taking action on Missouri's November 12, 2019 request to remove 
Jefferson County from the Inspection and Maintenance Program for the 
St. Louis Area. Missouri states in the 2021 letter that it views the 
requests in the 2019 SIP revision to remove inspection and maintenance 
requirements in Franklin and Jefferson Counties as severable. The EPA 
agrees the removal of inspection and maintenance requirements in 
Franklin and Jefferson Counties are severable. Missouri also states in 
the letter that the implementing regulation, 10 CSR 10-5.381, continues 
to require the inspection and maintenance program to operate in 
Jefferson County. As a result of today's proposed action, the 
nonregulatory 1999 Implementation Plan for the Missouri Inspection and 
Maintenance Program, originally approved into the SIP on May 18, 2000, 
65 FR 31480, remains approved into the SIP for Jefferson County. The 
EPA proposes to approve the nonregulatory Inspection and Maintenance 
Program for the St. Louis Area--2019 Revision, into the SIP, which 
requires the I/M program to continue to operate in the City of St. 
Louis and the counties of St. Louis and St. Charles and removes 
requirements for Franklin County.

[[Page 30440]]

    The EPA's analysis of the revisions can be found in the ``What is 
the EPA's analysis of Missouri's SIP request?'' section and in the 
technical support document (TSD) included in this docket.

VI. Have the requirements for approval of a SIP revision been met?

    Both the 2019 and 2022 State submissions have met the public notice 
requirements for SIP submissions in accordance with 40 CFR 51.102. The 
submission also satisfied the completeness criteria of 40 CFR part 51, 
appendix V. The State provided public notice on the November 12, 2019 
SIP revision from July 29, 2019 to August 29, 2019 and on the March 2, 
2022 SIP revision from October 15, 2021 to December 9, 2021. The State 
received ten comments during the 2019 public notice. The State received 
four comments on the 2021 public notice. The EPA finds Missouri has 
adequately addressed the comments received in its submissions. Please 
see the TSD for more discussion on Missouri's responses to comments. In 
addition, as explained here and in more detail in the TSD which is part 
of this docket, the revision meets the substantive SIP requirements of 
the Clean Air Act (CAA), including section 110 and implementing 
regulations.

VII. What is the EPA's analysis of Missouri's SIP request?

    EPA is making the preliminary determination that the Ozone NAAQS is 
the primary focus for the noninterference demonstration required by 
section 110(l) of the CAA because the I/M program results primarily in 
emissions benefits for VOCs, NO<INF>X</INF>, and CO. While the GVIP 
program does produce CO reductions, the St. Louis Area has CO 
concentration much less than the CO NAAQS. Ozone concentrations are at 
the Ozone NAAQS. As such, any increases to CO emissions are unlikely to 
lead to a violation of the CO NAAQS, but any increases to Ozone 
precursors are extremely likely to cause a violation of the Ozone 
NAAQS. VOCs and NO<INF>X</INF> emissions are precursors for Ozone. 
NO<INF>X</INF> emissions are precursors for particulate matter. 
NO<INF>2</INF> is a component of NO<INF>X</INF>. There are no emissions 
reductions attributable to the emissions of particulate matter, lead 
and sulfur dioxide (SO<INF>2</INF>) from the I/M program.
    In Missouri's March 2, 2022, SIP revision, the State concluded that 
the removal of the Franklin County from the I/M program would not 
interfere with attainment or maintenance of the Ozone NAAQS. While 
MOVES2014 mobile emissions modeling results show no Ozone precursor 
increase from 2017 to 2020 associated with the removal of Franklin 
County from the I/M program, MOVES2014 mobile emission modeling results 
show Ozone emission precursor increases on a same year comparison. The 
Ozone design value in St. Louis is right at the level of the 2015 Ozone 
standard. Since Boles Township of Franklin County is part of the St. 
Louis nonattainment area and emissions from Boles Township have been 
shown to impact air quality in the rest of the St. Louis Area, Missouri 
has provided supplemental NO<INF>X</INF> emission controls exceeding 
the amount of the highest same year increase from removal of the I/M 
program. Since the rest of Franklin County is attainment/unclassifiable 
for the 2015 Ozone NAAQS and emissions from the rest of the county do 
not impact the St. Louis Area, Missouri is relying on the 2017 to 2020 
emission comparison. The EPA proposes to find that removal of Franklin 
County from the SIP-approved I/M program would not interfere with 
attainment or maintenance of the 2015 or any prior Ozone NAAQS.
    Franklin County is designated attainment or unclassifiable for all 
other NAAQS. Missouri's MOVES2014 mobile emission modeling showed no 
emission increase for particulate matter, NO<INF>2</INF>, CO, or lead. 
Based on this data together with air quality data, EPA is making the 
preliminary determination that the change will not interfere with the 
area's ability to maintain the particulate matter, NO<INF>2</INF>, CO, 
or lead NAAQS, or any other applicable requirement. EPA is making the 
preliminary determination that the change will not interfere with 
reasonable progress towards natural visibility in Missouri's Class I 
areas nor any Class I area in another state Missouri impacts. For more 
details please see the ``Clean Air Act (CAA) Section 110(l) 
Demonstration'' section of the TSD in the docket of this action.

VIII. What action is the EPA proposing to take?

    The EPA is proposing to approve, through parallel processing, 
revisions to the Missouri SIP received on November 12, 2019 and March 
2, 2022. The EPA is proposing to approve portions of the November 12, 
2019 GVIP Plan, by approving the removal of Franklin County from the I/
M program, and fully approve the revisions to 10 CSR 10-5.381. The EPA 
is not taking action on the remainder of the November 12, 2019 GVIP 
Plan, at this time. We are soliciting comments on this proposed action. 
Final rulemaking will occur after consideration of any comments.

IX. Environmental Justice Concerns

    When the EPA reviews a state's desired change to their SIP for a 
NAAQS, the CAA requires the EPA to ensure that the change will not 
cause ``backsliding'' of the air quality or delaying attainment of air 
quality. SIP revisions address environmental justice concerns by 
ensuring that the public is properly informed about the Plan and 
regulations to attain and maintain air quality.
    The EPA utilized the EJSCREEN tool to evaluate environmental and 
demographic indicators within Franklin County, Jefferson County, St. 
Charles County, St. Louis County, and St. Louis City. The tool outputs 
reports are contained in the docket for this action. Looking 
specifically at Franklin County, the EPA's EJSCREEN tool demonstrates 
that demographic indicators are consistent with national averages, 
however there are vulnerable populations in Franklin County including 
low-income populations and persons over 64 years of age. In addition, 
emissions from Boles Township impact populations in the other portions 
of the nonattainment area. St. Louis City has demographic indicators 
significantly above national averages for low-income and minority 
populations. While the other counties' demographic indicators are 
consistent with or lower than national averages, there are vulnerable 
populations in these Counties including low-income populations and 
persons over 64 years of age.
    CAA section 110 requires Missouri to provide supplemental emission 
controls for the increases from Boles Township. As described earlier, 
EPA proposes to find these supplemental emission controls are 
sufficient to address the projected emissions increase from ceasing 
GVIP in Franklin County.
    This action addresses EPA's determination that the removal of 
Franklin County registered vehicles from the GVIP, unless they are 
predominately operated in the rest of the St. Louis Area. This action 
proposes to determine the removal of these Franklin County registered 
vehicles from the GVIP will not have an adverse impact to air quality 
or interfere with the nonattainment area attaining or maintaining the 
NAAQS. For these reasons, this proposed action does not result in 
disproportionately high and adverse human health or environmental 
effects on minority populations, low-income populations and/or 
indigenous peoples.

[[Page 30441]]

X. Incorporation by Reference

    In this document, the 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, the EPA is proposing to 
incorporate by reference the Missouri 10 CSR 10-5.381 as described in 
Sections V and VIII of this preamble and set forth below in the 
proposed amendments to 40 CFR part 52. The 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).

XI. Statutory and Executive Order Reviews

    Under the 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, the 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:
    <bullet> 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);
    <bullet> Does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
    <bullet> 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.);
    <bullet> 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);
    <bullet> Does not have federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
    <bullet> Is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
    <bullet> Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
    <bullet> Is not subject to requirements of the National Technology 
Transfer and Advancement Act (NTTA) because this rulemaking does not 
involve technical standards; and
    <bullet> This action does not have disproportionately high and 
adverse human health or environmental effects on minority populations, 
low-income populations and/or indigenous peoples, as specified in 
Executive Order 12898 (59 FR 7629, February 16, 1994). The basis for 
this determination is contained in section IX of this action, 
``Environmental Justice Concerns.''
    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 in 40 CFR Part 52

    Environmental protection, Air pollution control, Carbon monoxide, 
Incorporation by reference, Intergovernmental relations, Lead, Nitrogen 
dioxide, Ozone, Particulate matter, Reporting and recordkeeping 
requirements, Sulfur oxides, Volatile organic compounds.

    Dated: May 11, 2022.
Meghan A. McCollister,
Regional Administrator, Region 7.

    For the reasons stated in the preamble, the EPA proposes to amend 
40 CFR part 52 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 AA--Missouri

0
2. In Sec.  52.1320:
0
a. In the table in paragraph (c):
0
i. Revise the entry ``10-5.381''.
0
b. In the table in paragraph (e):
0
i. Revise the entry ``(38)''.
0
ii. Add the entry ``(84)'' in numerical order.
    The revisions and addition read as follows:


Sec.  52.1320   Identification of plan.

* * * * *
    (c) * * *

[[Page 30442]]



                                        EPA-Approved Missouri Regulations
----------------------------------------------------------------------------------------------------------------
                                                          State
        Missouri citation                Title          effective    EPA approval date         Explanation
                                                           date
----------------------------------------------------------------------------------------------------------------
                                    Missouri Department of Natural Resources
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
   Chapter 5--Air Quality Standards and Air Pollution Control Regulations for the St. Louis Metropolitan Area
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
10-5.381........................  On-Board               5/30/2022  [Date of             .......................
                                   Diagnostics Motor                 publication of the
                                   Vehicle Emissions                 final rule in the
                                   Inspection.                       Federal Register],
                                                                     [Federal Register
                                                                     citation of the
                                                                     final rule].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

* * * * *
    (e) * * *

                               EPA-Approved Missouri Nonregulatory SIP Provisions
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                                     Applicable
   Name of nonregulatory SIP       geographic or     State submittal
           provision               nonattainment           date        EPA approval date        Explanation
                                        area
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                                                  * * * * * * *
(38) Implementation plan for     Jefferson County.  11/12/1999.......  5/18/2000, 65 FR   [MO 096-1096b; FRL-
 the Missouri inspection                                                31480.             6701-6]. Approved for
 maintenance program.                                                                      Jefferson County
                                                                                           only.
 
                                                  * * * * * * *
(84) Implementation plan for     St. Charles        11/12/2019, 3/2/   [Date of           [EPA-R07-OAR-2022-0419
 the Missouri inspection          County, St.        2022.              publication of     ; FRL-9830-01-R7].
 maintenance program.             Louis County,                         the final rule     Approved only for St.
                                  and St. Louis                         in the Federal     Charles County, St.
                                  City.                                 Register],         Louis County, and St.
                                                                        [Federal           Louis City and
                                                                        Register           removal of Franklin
                                                                        citation of the    County. Removal of
                                                                        final rule].       Jefferson County is
                                                                                           not SIP approved.
----------------------------------------------------------------------------------------------------------------

[FR Doc. 2022-10688 Filed 5-18-22; 8:45 am]
BILLING CODE 6560-50-P


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