[Federal Register Volume 85, Number 55 (Friday, March 20, 2020)]
[Proposed Rules]
[Pages 16038-16046]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-05661]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[EPA-R03-OAR-2019-0577; FRL-10006-77-Region 3]


Air Plan Approval; West Virginia; Redesignation and Maintenance 
Plan for the West Virginia Portion of the Steubenville Sulfur Dioxide 
Nonattainment Area

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: In accordance with the Clean Air Act (CAA), the Environmental 
Protection Agency (EPA) is proposing to redesignate the West Virginia 
portion of the Steubenville, Ohio-West Virginia multi-state sulfur 
dioxide (SO2) nonattainment area (referred to as the 
``Steubenville Nonattainment Area'' or the ``Area'') from nonattainment 
to attainment. EPA is also proposing to approve West Virginia's 
maintenance plan for its portion of the Steubenville Nonattainment 
Area. Emissions of SO2 in the Area have been reduced and 
ambient SO2 readings in the nonattainment area are currently 
well below the 2010 1-hour SO2 national ambient air quality 
standard (NAAQS).

DATES: Written comments must be received on or before April 20, 2020.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R03-
OAR-2019-0577 at https://www.regulations.gov or via email to 
spielberger.susan@epa.gov. For comments submitted at Regulations.gov, 
follow the online instructions for submitting comments. Once submitted, 
comments cannot be edited or removed from Regulations.gov. For either 
manner of submission, 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

[[Page 16039]]

discussion of all points you wish to make. 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, please contact the person identified in 
the FOR FURTHER INFORMATION CONTACT section. For the full EPA public 
comment policy, information about CBI or multimedia submissions, and 
general guidance on making effective comments, please visit https://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: Sara Calcinore, Planning & 
Implementation Branch (3AD30), Air & Radiation Division, U.S. 
Environmental Protection Agency, Region III, 1650 Arch Street, 
Philadelphia, Pennsylvania 19103. The telephone number is (215) 814-
2043. Ms. Calcinore can also be reached via electronic mail at 
calcinore.sara@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,'' 
``us,'' or ``our'' is used, we mean EPA. This supplementary information 
section is arranged as follows:

I. Background and Redesignation Requirements
II. Relationship Between This Rulemaking and the Attainment Plan 
Rulemaking
III. Determination of Attainment
IV. CAA Section 110 and Part D Requirements and Fully Approved SIP 
Under CAA section 110(k)
V. Permanent and eNforceable Emission Reductions
VI. Maintenance Plan
VII. Proposed Action
VIII. Statutory and Executive Order Reviews

I. Background and Redesignation Requirements

    In 2010, EPA established a revised primary hourly annual 
SO2 NAAQS of 75 parts per billion (ppb). 75 FR 35520, June 
22, 2010; 40 CFR 50.17. EPA designated the Steubenville, Ohio-West 
Virginia area as nonattainment for the 2010 SO2 NAAQS on 
August 5, 2013, based upon air quality monitoring data for calendar 
years 2009-2011. 78 FR 47191; 40 CFR 81.349, 81.336. The Steubenville 
Nonattainment Area is comprised of a portion of Jefferson County, Ohio 
and a portion of Brooke County, West Virginia. The Ohio portion of the 
nonattainment area includes Cross Creek Township, Steubenville 
Township, Warren Township, Wells Township, and Steubenville City in 
Jefferson County. 40 CFR 81.336. The West Virginia portion of the 
nonattainment area is the Cross Creek Tax District in Brooke County. 40 
CFR 81.349.
    Ohio and West Virginia were required to prepare State 
Implementation Plan (SIP) revisions that provided for attainment of the 
SO2 NAAQS in the Steubenville Nonattainment Area by the 
SO2 attainment date of October 4, 2018. These ``attainment 
plans'' or ``attainment demonstrations'' were also required to meet the 
requirements of sections 172(c) and 191-192 of the CAA. West Virginia's 
attainment plan SIP revision was submitted to EPA through the West 
Virginia Department of Environmental Protection (WVDEP) on April 25, 
2016, with a supplemental submission from WVDEP on November 27, 2017 
and a clarification letter on May 1, 2019. Ohio's attainment plan SIP 
revision was submitted to EPA through the Ohio Environmental Protection 
Agency (OEPA) on April 1, 2015 with supplemental submissions on October 
13, 2015, March 25, 2019, and June 25, 2019. EPA proposed to approve 
the attainment plans submitted by Ohio and West Virginia on June 24, 
2019. 84 FR 29456. On October 22, 2019, EPA approved the attainment 
plans for the Steubenville Nonattainment Area. 84 FR 56385. EPA's 
October 22, 2019 approval also revised the West Virginia SIP to include 
new emissions limits, operational restrictions, and associated 
compliance requirements for Mountain State Carbon (MSC) and revised the 
Ohio SIP to include limits on emissions from Mingo Junction Energy 
Center (also known as ``R.G. Steel-Wheeling Mingo Junction''), the JSW 
Steel USA Ohio facility (JSW Steel), and the American Electric Power 
(AEP) Cardinal Power Plant (referred to as ``Cardinal Power Plant'').
    On June 25, 2019, Ohio submitted a request to redesignate the Ohio 
portion of the Steubenville Nonattainment Area. EPA redesignated the 
Ohio portion of the Steubenville Nonattainment Area to attainment on 
November 29, 2019. 84 FR 65683. On August 22, 2019, West Virginia 
submitted a request to redesignate the West Virginia portion of the 
Steubenville Nonattainment Area.
    Under CAA section 107(d)(3)(E), five criteria must be met before a 
nonattainment area may be redesignated to attainment. Although the 
Steubenville Nonattainment Area includes portions within two states, 
this action only proposes to redesignate the West Virginia portion of 
this area. As stated previously, the Ohio portion of the Steubenville 
Nonattainment Area was redesignated to attainment on November 29, 2019.
    The five criteria in CAA section 107(d)(3)(E) that must be met, and 
EPA's interpretation of whether any of the criteria must be met in both 
the Ohio portion and West Virginia portion of the Steubenville 
Nonattainment Area or only in West Virginia, are discussed below. These 
criteria are:

    1. EPA has determined that the area has attained the relevant 
NAAQS. Section 107(d)(3)(E)(i). In this rulemaking, EPA is 
evaluating whether the entire two-state Area is attaining the 
SO2 NAAQS.
    2. The applicable implementation plan has been fully approved by 
EPA under section 110(k) of the CAA. Section 107(d)(3)(E)(ii). In 
this rulemaking, EPA is evaluating redesignation for only the West 
Virginia portion of the Area on the basis of whether West Virginia's 
applicable implementation plan has been fully approved.
    3. EPA has determined that improvement in air quality is due to 
permanent and enforceable reductions in emissions resulting from the 
applicable implementation plans, Federal regulations, and other 
permanent and enforceable reductions. Section 107(d)(3)(E)(iii). In 
this rulemaking, EPA is evaluating this criterion for both the Ohio 
and West Virginia portions of the Steubenville Nonattainment Area.
    4. EPA has fully approved a maintenance plan, including a 
contingency plan, for the area that meets the requirements of 
section 175A of the CAA. Section 107(d)(3)(E)(iv). In this 
rulemaking, EPA is evaluating only whether West Virginia's 
maintenance plan provides for its share of actions to assure 
maintenance in the two-state Area.
    5. EPA has determined that the state has met all applicable 
requirements for the area under section 110 and part D. Section 
107(d)(3)(E)(v). In this rulemaking, EPA is evaluating redesignation 
for only the West Virginia portion of the Area on the basis of 
whether West Virginia has met these applicable requirements.

II. Relationship Between This Rulemaking and the Attainment Plan 
Rulemaking

    Some of the criteria for this proposed redesignation are met by 
elements of the previously approved Ohio and West Virginia attainment 
plans. In particular, part of the evidence that the Area is attaining 
the SO2 NAAQS is based on modeling included in the two 
states' attainment plans and related supplemental submittals. The 
SO2 emission limits that assure the permanence and Federal 
enforceability of the air quality improvement in the Area were also 
submitted as part of the attainment plans.
    As noted previously, EPA proposed to approve the Ohio and West 
Virginia attainment plans on June 24, 2019, at 84 FR 29456, and issued 
a final approval on October 22, 2019. 84 FR 56385. This rulemaking is 
not reopening any portion of that rulemaking. For example, this 
rulemaking does not solicit any additional comments on the modeling in 
the two states' attainment plans, on the adequacy of the limits in 
those plans

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for assuring attainment, or generally on whether those plans warranted 
approval. Comments on these topics were germane to the attainment plans 
rulemaking and were solicited in that rulemaking. EPA addressed these 
topics in the attainment plans rulemaking but received no comments on 
these topics in that rulemaking. As stated previously, EPA's proposed 
approval of West Virginia's redesignation request is based in part on 
the final rulemaking approving the Ohio and West Virginia attainment 
plans.

III. Determination of Attainment

    The first requirement for redesignation is to demonstrate that the 
2010 1-hour SO2 NAAQS has been attained in the entire 
Steubenville Nonattainment Area. As stated in EPA's April 23, 2014 
``Guidance for 1-Hour SO2 Nonattainment Area SIP 
Submissions'' (referred to as ``2014 SO2 Guidance''), there 
are two components needed to support an attainment determination for 
SO2: (1) A review of representative air quality monitoring 
data, and (2) a further analysis, generally requiring air quality 
modeling, to demonstrate that the entire area is attaining the 
applicable NAAQS based on current actual emissions or the fully 
implemented control strategy. 2014 SO2 Guidance, p.62. West 
Virginia has addressed both components.
    Under EPA regulations at 40 CFR 50.17, the 2010 1-hour 
SO2 NAAQS is met at an ambient air quality monitoring site 
when the three-year average of the annual 99th percentile of one-hour 
daily maximum concentrations is less than or equal to 75 ppb, as 
determined in accordance with appendix T of 40 CFR part 50, at all 
relevant monitoring sites in the subject area. EPA has reviewed the 
ambient air monitoring data for the Steubenville Nonattainment Area 
included in West Virginia's redesignation request, which consists of 
data from three SO2 monitoring sites in Jefferson County, 
Ohio and three SO2 monitoring sites in Brooke County, West 
Virginia. The data from these monitors have been certified and recorded 
in EPA's Air Quality System (AQS) database.
    Table 1 shows the 99th percentile results and three-year average 
design values for the Steubenville Nonattainment Area monitors for 
2016-2018, which are the most recent three years of complete, quality-
assured data. The 2016-2018 design value \1\ for the Steubenville 
Nonattainment Area is 37 ppb, which is well below the 2010 
SO2 NAAQS of 75 ppb. This design value, which was measured 
at the Weirton-Marland Heights monitor (Site ID 54-009-0011), in Brooke 
County, West Virginia, is the highest monitored design value in the 
Steubenville Nonattainment Area. Therefore, West Virginia has 
demonstrated that the Steubenville Nonattainment Area's SO2 
monitors currently show attainment of the 2010 SO2 NAAQS. 
For every 3-year period starting with the 2013-2015 design value 
period, all six monitors have had design values below the 2010 
SO2 NAAQS of 75 ppb. Preliminary monitoring data for 2019 
indicate that the Area is continuing to attain the 2010 SO2 
NAAQS.
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    \1\ The ``design value'' is the 3-year average of the annual 
99th percentile daily maximum 1-hour values for a monitoring site. 
40 CFR part 50, Appendix T.

                 Table 1--Monitoring Data for the Steubenville Nonattainment Area for 2016-2018
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                                                       Year and 99th percentile value  (ppb)       Design value:
                                                 ------------------------------------------------ average  2016-
         Site ID                  Location                                                          2018  (ppb)
                                                       2016            2017            2018
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39-081-0017..............  Jefferson County, OH.              27              18              34              26
39-081-0018..............  Jefferson County, OH.              31              34               9              25
39-081-0020..............  Jefferson County, OH.              20              13               8              14
54-009-0005..............  Brooke County, WV....              33              28              48              36
54-009-0007..............  Brooke County, WV....              39              23              24              29
54-009-0011..............  Brooke County, WV....              49              27              35              37
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    In addition to the monitoring data, West Virginia submitted a 
modeling analysis demonstrating that the control strategy for the 
Steubenville Nonattainment Area will provide for attainment of the 
SO2 NAAQS in the entire Area. West Virginia's August 22, 
2019 redesignation request includes dispersion modeling from the 
attainment plan for the Steubenville Nonattainment Area that was 
approved by EPA on October 22, 2019.\2\ This joint modeling analysis 
demonstrated that the Steubenville Nonattainment Area had attained the 
2010 SO2 NAAQS based on the allowable emissions from the 
four primary sources in the Area: (1) The Cardinal Power Plant, located 
in Brilliant, Ohio; (2) JSW Steel (formerly Wheeling Pittsburgh Steel 
Plant and referred to by West Virginia as ``Mingo Junction Steel 
Works'') in Mingo Junction, Ohio; (3) the Mingo Junction Energy Center 
also in Mingo Junction, Ohio; and (4) MSC in Follansbee, West Virginia. 
The modeling analysis is discussed in detail in the June 24, 2019 (84 
FR 29456) notice of proposed rulemaking for West Virginia's attainment 
plan.
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    \2\ On March 25, 2019, OEPA submitted revised modeling with a 
new limit and revised stack characteristics for Cardinal Power Plant 
as a supplement to the attainment plan for the Steubenville 
Nonattainment Area. West Virginia concurred with the revised 
modeling on May 1, 2019. The March 25, 2019 supplement was approved 
with the attainment plan for the Steubenville Nonattainment Area on 
October 22, 2019. West Virginia's August 22, 2019 redesignation 
request includes the approved dispersion modeling submitted by OEPA 
as a supplement to the attainment plan on March 25, 2019.
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    West Virginia has confirmed that the modeled facilities are 
currently in full compliance with their emission limits. Current actual 
emissions at these facilities are therefore at or below the allowable 
levels used in the modeling analysis included with West Virginia's 
redesignation request. Because this modeling shows that compliance with 
the emission limits in the States' plans yields attainment in the 
entire nonattainment area, and the sources are complying with these 
limits, this modeling also supports EPA's proposed conclusion that both 
the Ohio portion and West Virginia portion of the two-state Area are 
attaining the 2010 SO2 NAAQS.

IV. CAA Section 110 and Part D Requirements and Fully Approved SIP 
Under CAA Section 110(k)

    In accordance with section 107(d)(3)(E)(v) of the CAA, in order to 
redesignate the Steubenville Area to attainment, West Virginia must 
meet all requirements applicable to the

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Steubenville Nonattainment Area under CAA section 110 (general SIP 
requirements) and part D of title I of the CAA (SIP requirements for 
nonattainment areas). In addition, in accordance with section 
107(d)(3)(E)(ii) of the CAA, the West Virginia SIP for the Steubenville 
Nonattainment Area must be fully approved under CAA section 110(k).
    The Calcagni memorandum (``Procedures for Processing Requests to 
Redesignate Areas to Attainment,'' Memorandum from John Calcagni, 
Director, Air Quality Management Division, September 4, 1992) describes 
EPA's interpretation of section 107(d)(3)(E) with respect to the timing 
of applicable requirements. Under this interpretation, to qualify for 
redesignation, states requesting redesignation to attainment must meet 
only the relevant CAA requirements that come due prior to the submittal 
of a complete redesignation request. See also Shapiro memorandum 
(``State Implementation Plan (SIP) requirements for Areas Submitting 
Requests for Redesignation to Attainment of the Ozone and Carbon 
Monoxide (CO) National Ambient Air Quality Standards (NAAQS) On or 
After November 15, 1992,'' Memorandum from Michael H. Shapiro, Acting 
Assistant Administrator for Air and Radiation, September 17, 1993) and 
60 FR 12459, 12465-12466, (March 7, 1995) (redesignation of Detroit-Ann 
Arbor). Applicable requirements of the CAA that come due subsequent to 
the area's submittal of a complete redesignation request remain 
applicable until a redesignation is approved but are not required as a 
prerequisite to redesignation. See CAA section 175A(c). Sierra Club v. 
EPA, 375 F .3d 537 (7th Cir. 2004). See also 68 FR 25424, 25427 (May 
12, 2003) (redesignation of the St. Louis/East St. Louis area to 
attainment of the 1-hour ozone NAAQS).
    EPA has determined that, in accordance with section 
107(d)(3)(E)(v), West Virginia has met all SIP requirements under 
section 110 of the CAA and part D of title I of the CAA applicable for 
purposes of this redesignation. In making these determinations, EPA 
ascertained what requirements are applicable to the Area and determined 
that the portions of the West Virginia SIP meeting these requirements 
are fully approved under section 110(k) of the CAA. We note that SIPs 
must be fully approved only with respect to applicable requirements. 
EPA's rationale is discussed in more detail in the following sections.

1. West Virginia Has Met all Applicable Requirements of Section 110 and 
Part D of the CAA Applicable to the Steubenville Nonattainment Area for 
Purposes of Redesignation

a. Section 110 General Requirements for SIPs
    Pursuant to CAA section 110(a)(1), whenever new or revised NAAQS 
are promulgated, the CAA requires states to submit a plan (i.e. 
``SIP'') for the implementation, maintenance and enforcement of such 
NAAQS. Section 110(a)(2) of title I of the CAA contains the general 
requirements for a SIP, also known as ``infrastructure'' requirements. 
The infrastructure requirements of section 110(a)(2) include the 
requirements in subsections 110(a)(2)(A) through (M).
    However, not every requirement of section 110(a)(2) is an 
applicable requirement for the purposes of redesignating the 
Steubenville Nonattainment Area to attainment for the SO2 
NAAQS. For example, section 110(a)(2)(D) requires that SIPs contain 
certain measures to prevent sources in a state from significantly 
contributing to air quality problems in another state. When such issues 
have been identified, EPA has required certain states to establish 
programs to address transport of air pollutants. See Nitrogen Oxides 
(NOX) SIP Call and amendments to the NOX SIP Call 
(64 FR 26298, May 14, 1999 and 65 FR 11222, March 2, 2000), and the 
Cross-State Air Pollution Rule (CSAPR) Update (81 FR 74504, October 26, 
2016). However, the section 110(a)(2)(D) SIP requirements are not 
linked with a particular area's SO2 designation. That is, 
any applicable section 110(a)(2)(D) requirement continues to apply to a 
state regardless of the attainment designation (or redesignation) of an 
area. EPA has concluded that the SIP requirements linked to an area's 
SO2 designation are the relevant (applicable) measures when 
reviewing a redesignation request for an area, and therefore the 
general requirements of section 110(a)(2)(D) are not applicable 
requirements for the purposes of a SO2 redesignation.
    Similarly, other section 110(a)(2) elements that are neither 
connected with attainment plan submissions nor linked with an area's 
SO2 designation are not applicable requirements for purposes 
of redesignation. An area redesignated from SO2 
nonattainment to attainment will remain subject to these statewide 
requirements after redesignation to attainment. This approach is 
consistent with EPA's existing policy on applicability (i.e., for 
redesignations) of conformity and oxygenated fuels requirements, as 
well as with CAA section 184 ozone transport requirements. See Reading, 
Pennsylvania, proposed and final rulemakings (61 FR 53174-53176, 
October 10, 1996), (62 FR 24826, May 7, 2008); Cleveland-Akron-Loraine, 
Ohio, final rulemaking (61 FR 20458, May 7, 1996); and Tampa, Florida, 
final rulemaking (60 FR 62748, December 7, 1995). See also the 
discussion on this issue in the Cincinnati, Ohio, redesignation (65 FR 
37890, June 19, 2000), and in the Pittsburgh, Pennsylvania, 
redesignation (66 FR 50399, October 19, 2001).
    Nonetheless, EPA has reviewed West Virginia's SIP and concludes 
that it meets the general SIP requirements of section 110 of the CAA, 
for those requirements that are applicable for purposes of an 
SO2 redesignation. EPA approved elements of West Virginia's 
July 1, 2013, and June 1, 2015, SO2 infrastructure SIP 
submittals on November 17, 2014 (79 FR 62022) and August 11, 2016 (81 
FR 53008), respectively.\3\ As explained previously, the general 
requirements of CAA section 110(a)(2) are statewide requirements that 
are not linked to the nonattainment status of the Steubenville 
Nonattainment Area and are therefore not ``applicable requirements'' 
for the purpose of reviewing West Virginia's redesignation request. 
Because West Virginia satisfies the general SIP elements and 
requirements set forth in CAA section 110(a)(2) applicable to and 
necessary for redesignation, EPA concludes that West Virginia has 
satisfied the criterion of section 107(d)(3)(E)(v) regarding section 
110 of the CAA.
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    \3\ West Virginia's SO2 infrastructure SIP submittals 
did not address the interstate transport element of CAA section 
110(a)(2)(D)(i). As explained previously, the interstate transport 
element of CAA section 110(a)(2)(D)(i) is not an applicable 
requirement for redesignation of the Steubenville Nonattainment 
Area.
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b. Part D Requirements
    In addition to the CAA section 110 requirements, section 
107(d)(3)(E)(v) requires that the state meet all the requirements 
applicable to the nonattainment area ``under part D of this 
subchapter'' in order for the nonattainment area to be redesignated. 
Both section 107 and part D are within subchapter 1 of the CAA. Part D, 
entitled ``Plan Requirements for Nonattainment Areas,'' consists of six 
subparts, of which only subparts 1 and 5 are applicable to 
SO2 nonattainment areas. Subpart 1 (sections 171-179B) 
contains provisions that can apply to all nonattainment areas for all 
criteria

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pollutants, while subpart 5 (sections 191-192) contains additional 
provisions for SO2, NOX, or lead nonattainment 
areas. The requirements applicable to this redesignation are discussed 
below.
i. Subpart 1 Requirements
1. Section 172 Requirements
    CAA section 172 requires states with nonattainment areas to submit 
plans that provide for timely attainment of the NAAQS. CAA section 
172(c) contains general requirements for nonattainment plans. A 
thorough discussion of these requirements is found in the General 
Preamble for Implementation of Title I. 57 FR 13498, April 16, 1992.
    As noted earlier, West Virginia submitted, and EPA approved, West 
Virginia's attainment plan for the Steubenville Nonattainment Area. 84 
FR 29456, June 24, 2019; 84 FR 56385, October 22, 2019. In the proposed 
approval, EPA evaluated and proposed approval of the following elements 
of West Virginia's attainment plan: Emissions inventory (section 
172(c)(3)), a determination that the control strategy for the primary 
SO2 source within the Steubenville Nonattainment Area 
constitutes reasonably available control measures/reasonably available 
control technology (RACM/RACT) and an attainment demonstration (section 
172(c)(1)), enforceable emissions limitations and control measures 
(172(c)(4)), new source review (NSR) (section 172(c)(5)),\4\ reasonable 
further progress (RFP) (section 172(c)(2)), contingency measures 
(section 172(c)(9)), and compliance with the requirements of CAA 
section 110(a)(2) (section 172(c)(7)). EPA's proposed approval also 
found that West Virginia did not need to adopt other measures than 
those adopted within the attainment plan to achieve compliance with the 
2010 1-hour SO2 NAAQS, as potentially required by section 
172(c)(6). Thus, EPA found in the final approval of the attainment plan 
that West Virginia had complied with all the applicable requirements of 
section 172 of the CAA, and this proposed approval of West Virginia's 
redesignation request relies upon that finding within EPA's final 
approval of West Virginia's attainment plan.
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    \4\ EPA has a longstanding interpretation that because 
nonattainment new source review (NNSR) is replaced by prevention of 
significant deterioration (PSD) upon redesignation, nonattainment 
areas seeking redesignation to attainment need not have a fully 
approved part D NNSR program in order to be redesignated. A more 
detailed rationale for this view is described in a memorandum from 
Mary Nichols, Assistant Administrator for Air and Radiation, dated 
October 14, 1994, entitled, ``Part D New Source Review Requirements 
for Areas Requesting Redesignation to Attainment.'' Nevertheless, 
West Virginia has a SIP-approved NSR and PSD program, found at 
45CSR13, 45CSR19, and 45CSR14. See 40 CFR 52.2520(c). West 
Virginia's PSD program will become effective in the Steubenville 
Nonattainment Area upon redesignation to attainment.
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    Because EPA's analysis of these elements of CAA section 172 were 
available for public comment in the proposed attainment plan approval, 
EPA is not seeking any further public comment in this action on the 
section 172 elements approved in the attainment plan approval. Comments 
on these elements were germane to the attainment plan approval and 
should have been submitted during the public comment period for the 
proposed attainment plan approval.
2. Section 173
    Section 173 of the CAA includes requirements for permit programs 
that are required in a nonattainment area for new sources by section 
172(c)(5). This is known as NNSR. As stated previously, West Virginia 
has an NSR permitting program, found at 45CSR13 and 45CSR19. EPA 
therefore proposes to conclude that West Virginia has an NSR permitting 
program meeting the requirements of section 173 for SO2. In 
addition, West Virginia has a SIP-approved PSD program under 45CSR14. 
See 40 CFR 52.2520(c).
3. Section 175A
    CAA section 175A requires that states seeking redesignation of an 
area to attainment submit a ``maintenance plan'' containing certain 
elements. West Virginia included a maintenance plan for the 
Steubenville Nonattainment Area with their August 22, 2019 
redesignation request, which is discussed in detail in Section VI of 
this notice of proposed rulemaking.

4. Section 176 Requirements

    Section 176(c) of the CAA requires states to establish criteria and 
procedures to ensure that Federally-supported or funded projects 
conform to the air quality planning goals in the applicable SIP. The 
requirement to determine conformity applies to transportation plans, 
programs, and projects that are developed, funded, or approved under 
title 23 of the United States Code and the Federal Transit Act 
(transportation conformity) as well as to all other Federally-supported 
or funded projects (general conformity). State transportation 
conformity SIP revisions must be consistent with Federal conformity 
regulations relating to consultation, enforcement, and enforceability 
that EPA promulgated pursuant to its authority under the CAA. On April 
12, 2007, West Virginia submitted documentation establishing 
transportation conformity procedures in its SIP. EPA approved these 
procedures on May 2, 2008 (73 FR 24175).
    However, EPA interprets the conformity SIP requirements as not 
applicable for purposes of evaluating a redesignation request because, 
like other requirements listed above, state conformity rules are still 
required after redesignation to attainment and Federal conformity rules 
apply where state rules have not been approved. See Wall v. EPA, 265 
F.3d 426 (6th Cir. 2001) (upholding this interpretation); see also 60 
FR 62748 (December 7, 1995) (redesignation of Tampa, Florida). 
Furthermore, due to the relatively small, and decreasing, amounts of 
sulfur in gasoline and on-road diesel fuel, EPA's transportation 
conformity rules do not apply to SO2 unless the EPA Regional 
Administrator or the director of the state air agency has found that 
transportation-related emissions of SO2 as a precursor are a 
significant contributor to a SO2 or fine particulate matter 
(PM2.5) nonattainment problem, or if the SIP has established 
an approved or adequate budget for such emissions as part of the RFP, 
attainment, or maintenance strategy. See 40 CFR 93.102(b)(1), (2)(v); 
SO2 Nonattainment Area Guidance. Neither of these conditions 
have been met; therefore, EPA's transportation conformity rules do not 
apply to SO2 for the Steubenville Nonattainment Area.

5. Sections 176A, 177, 178, 179 and 179B

    CAA sections 176A through 179B are not applicable requirements for 
the purpose of redesignation for SO2.
ii. Subpart 5 Requirements
    The subpart 5 requirements, which consist of sections 191 and 192 
of the CAA, are specific provisions applicable to SO2, 
NOX or lead nonattainment areas. Section 191 of the CAA 
requires states with areas designated nonattainment for SO2, 
NOX or lead after November 15, 1990, to submit within 18 
months of the designation an implementation plan meeting the 
requirements of part D. West Virginia's part D SIP (attainment plan) 
for its portion of the Steubenville Nonattainment Area was due April 4, 
2015. As stated previously, West Virginia submitted its part D SIP 
(attainment plan) on April 25, 2016, with a supplemental submission on 
November 27, 2017 and a clarification letter on May 1, 2019. In its 
proposed and final rulemakings on West Virginia's part D SIP 
(attainment plan), EPA found that West Virginia satisfied the 
applicable requirements under CAA

[[Page 16043]]

section 110 and part D for the Steubenville Nonattainment Area. See 84 
FR 29456 (June 24, 2019) and 84 FR 56385 (October 22, 2019). West 
Virginia has therefore satisfied this subpart 5, section 191 
requirement for redesignation.
    Section 192 sets forth attainment dates for nonattainment areas 
under section 191. For SO2, section 192(a) requires that 
attainment plans provide for attainment of the primary standard as 
expeditiously as possible, but no later than five years from the date 
of the nonattainment designation. EPA designated the Steubenville Area 
as nonattainment on August 5, 2013, with an attainment date of October 
4, 2018. As discussed in Section III, the Steubenville Nonattainment 
Area has demonstrated attainment with the 2010 SO2 standard 
since the 2013-2015 monitoring period and continues to attain the 
SO2 NAAQS. Therefore, EPA is proposing to find that the 
subpart 5, section 192 requirement has been met.
    Based on the above, EPA is proposing to find that West Virginia has 
satisfied the applicable requirements for the redesignation of its 
portion of the Steubenville Nonattainment Area under section 110 and 
part D of title I of the CAA.

V. Permanent and Enforceable Emission Reductions

    For an area to be redesignated, the state must be able to 
reasonably attribute the improvement in air quality to permanent and 
enforceable emission reductions. As stated previously, the primary 
sources in the Steubenville Nonattainment Area are the Cardinal Power 
Plant, located in Brilliant, Ohio; JSW Steel, formerly Wheeling 
Pittsburgh Steel Plant and referred to by West Virginia as ``Mingo 
Junction Steel Works'', in Mingo Junction, Ohio; the Mingo Junction 
Energy Center (also known as ``R.G. Steel-Wheeling Mingo Junction''), 
also in Mingo Junction, Ohio; and MSC, in Follansbee, West Virginia.
    These facilities have all significantly reduced SO2 
emissions since the area was monitoring violations, and these emission 
reductions have been made permanent and enforceable by the limits that 
Ohio and West Virginia adopted and submitted in their respective 
attainment plan submittals.
    MSC produces metallurgical-grade coke and coke gas byproducts from 
coal, which contains sulfur. A byproduct of coke production is coke 
oven gas, which contains SO2. The facility burns this gas, 
releasing SO2 emissions. As a result of a consent order 
dated September 29, 2017 (Consent Order Number CO-SIP-C-2017-9), MSC 
has improved its coke oven gas desulfurization equipment to reduce its 
SO2 emissions. The emissions reductions, mandated by West 
Virginia's emission limits and work practice requirements contained in 
the consent order, were approved into the West Virginia SIP through the 
attainment plan approval and are therefore permanent and Federally 
enforceable. 84 FR 56385 (October 22, 2019); 40 CFR 52.2520(d).
    The Cardinal Power Plant is subject to several permanent and 
enforceable control measures including, but not limited to, the Acid 
Rain Program and the Mercury and Air Toxics Standard (MATS) rule. In 
addition, restrictions on SO2 emissions at the Cardinal 
Power Plant are approved into the Ohio SIP under Chapter 3745-18 and 
include a Federally-enforceable, 30-day rolling average combined 
SO2 limit of 4,858.75 pound per hour (lb/hr) for the coal-
fired boiler Units 1, 2, and 3. See 40 CFR 52.1870(c). The Cardinal 
Power Plant implemented flue gas desulfurization (FGD) between 2010 and 
2012, resulting in a reduction of SO2 emissions from 32,500 
tons in 2010 to 9,700 tons in 2018, a reduction that Ohio's limit 
requires to be maintained. 84 FR 4942 (September 20, 2019). Therefore, 
EPA is proposing to find that the Cardinal Power Plant is subject to 
permanent and enforceable control measures.
    Both the Mingo Junction Energy Center and Mingo Junction Steel 
Works (JSW Steel) have ceased operations, with JSW Steel resuming 
limited operations in 2018. Both Mingo Junction Energy Center and JSW 
Steel are subject to permanent and enforceable control measures 
identified in the SIP-approved attainment plan that were found to 
provide for attainment and maintenance of the 2010 1-hour 
SO2 NAAQS in the Steubenville Nonattainment Area. These 
measures under Ohio rules OAC 3745-18 are approved into the Ohio SIP. 
In the event that these facilities resume full operations, they would 
remain subject to the Federally enforceable control measures in the 
Ohio SIP that were shown to provide for attainment and maintenance of 
the SO2 NAAQS in the SIP-approved attainment plan for the 
Steubenville Nonattainment Area. 84 FR 29456 (June 24, 2019); 84 FR 
56385 (October 22, 2019).
    At the time of Steubenville's nonattainment designation, the 
monitored SO2 design values (2009-2011) in the area were 109 
ppb at the Jefferson County monitor (Site ID 39-081-0017) and 174 ppb 
at the Brooke County, West Virginia monitor (Site ID 54-009-0011). More 
recent monitoring data indicate that ambient SO2 levels have 
improved significantly. The highest monitored design value for the 
Steubenville Nonattainment Area for 2016-2018 is 37 ppb. This value was 
measured at monitor 54-009-0011 in Brooke County, West Virginia. These 
monitored values are well below the SO2 NAAQS of 75 ppb. 
This air quality improvement is attributable to the substantial 
emission reductions noted above, which the Ohio and West Virginia 
attainment plans require to be permanent and enforceable. Thus, EPA 
proposes to find that the improvement in air quality in the 
Steubenville Nonattainment Area can be attributed to permanent and 
enforceable emission reductions at facilities in Ohio and West 
Virginia, and that CAA section 107(d)(3)(E)(iii) has been satisfied by 
both Ohio and West Virginia.

VI. Maintenance Plan

    As one of the criteria for redesignation to attainment, section 
107(d)(3)(E)(iv) of the CAA requires EPA to determine that the area has 
a fully approved maintenance plan pursuant to section 175A of the CAA. 
Section 175A of the CAA sets forth the elements of a maintenance plan 
for areas seeking redesignation from nonattainment to attainment. 
Section 175A requires that the maintenance plan demonstrate continued 
attainment of the applicable NAAQS for at least ten years after the 
nonattainment area is redesignated to attainment. Eight years after the 
redesignation, the state must submit a revised maintenance plan 
demonstrating that attainment will continue to be maintained for an 
additional ten years following the initial ten-year period. To address 
the possibility of future NAAQS violations, the maintenance plan must 
also contain contingency measures as EPA deems necessary to assure 
prompt correction of any future one-hour violations. Specifically, the 
maintenance plan should address five requirements: (1) An attainment 
emissions inventory; (2) maintenance demonstration; (3) commitment for 
continued air quality monitoring; (4) verification of continued 
attainment; and (5) a contingency plan. See Calcagni memorandum.
    In conjunction with their request to redesignate the West Virginia 
portion of the Steubenville Nonattainment Area, West Virginia 
submitted, as a revision to their SIP, a plan to provide for 
maintenance of the SO2 NAAQS through 2030 in the Area, which 
is 10 years after the expected effective date of the redesignation to 
attainment. West Virginia has committed to review the maintenance plan 
for the Area eight years after redesignation. EPA is

[[Page 16044]]

proposing to find that West Virginia's maintenance plan for the 
Steubenville Nonattainment Area includes the necessary components per 
the CAA, including CAA section 175A and EPA guidance, and is proposing 
to approve the maintenance plan as a revision to the West Virginia SIP.

1. Attainment Inventory

    The Calcagni memorandum indicates that states requesting 
redesignation to attainment should develop an attainment emissions 
inventory in order to identify the level of emissions in the area which 
is sufficient to attain the NAAQS. The attainment inventory should be 
consistent with EPA's most recent guidance on emission inventories for 
nonattainment areas available at the time and should include the 
emissions during the time period associated with monitoring data 
showing attainment.
    For the attainment inventory, West Virginia used the year 2011 as 
the ``nonattainment year'' since the three-year period 2009-2011 was 
the basis of the nonattainment designation. Although the attainment 
date for the Steubenville Nonattainment Area was October 4, 2018, West 
Virginia selected 2016 as the ``attainment year'' for its emission 
inventory because 2016 was one of the years contributing to the 2014-
2016 and 2015-2017 design values demonstrating attainment of the 
SO2 NAAQS in the Steubenville Nonattainment Area. The 
attainment year inventory is shown in Table 2 as well as the projected 
emissions of SO2 in future years (i.e. 2023 and 2030).

2. Maintenance Demonstration

    Pursuant to the 2014 SO2 guidance, an air agency may 
demonstrate maintenance of the NAAQS by either showing that future 
emissions of SO2 will not exceed the level of the attainment 
inventory or by modeling to show that the future mix of sources and 
emission rates will not cause a violation of the NAAQS. As discussed 
previously, West Virginia and Ohio have submitted, and EPA has 
approved, modeling analyses demonstrating attainment and maintenance of 
the SO2 NAAQS as part of the attainment plans for the 
Steubenville Nonattainment Area. In addition, West Virginia has 
demonstrated maintenance of the SO2 NAAQS through 2030 with 
emission inventories showing that future emissions of SO2 in 
the Steubenville Nonattainment Area will remain at or below attainment 
year emission levels. West Virginia projected SO2 emissions 
for an interim future year of 2023 and for 2030. The attainment and 
maintenance inventories, provided in Table 2, shows the projected 
emissions of SO2 in 2011 (nonattainment year), 2016 
(attainment year), 2023 (interim year), and 2030 and demonstrates that 
future emissions of SO2 will not exceed the levels of the 
2016 attainment year inventory for the Steubenville Nonattainment Area 
for a minimum of 10 years following redesignation.

      Table 2--Brooke County, West Virginia Emission Inventory Totals for 2011, 2016, 2023, and 2030 (tpy)
----------------------------------------------------------------------------------------------------------------
                                                                  2016 (WV)  and
           Location                  Sector            2011          2014 (OH)         2023            2030
                                                                   (attainment)
----------------------------------------------------------------------------------------------------------------
West Virginia Portion.........  EGU.............               0               0               0               0
                                Non-EGU.........             730             383             382             381
                                Oil & Gas.......            1.56            6.35            7.69            8.11
                                Area............          143.46          138.34          135.31          134.32
                                Non-Road........            0.02            0.01            0.01            0.01
                                On-Road.........            2.07            2.02            0.79            0.74
                                                 ---------------------------------------------------------------
                                   Total........          877.11          529.72          525.80          524.18
Ohio Portion 1................  EGU.............       25,122.42       10,660.65        9,602.02        9,602.02
                                Non-EGU.........          223.44            0.02            0.02            0.02
                                Non-Road........            0.29            0.23            0.14            0.15
                                Other (Area)....           62.13           57.76           56.67           56.35
                                On-Road.........            3.52            3.46            1.38            1.32
                                                 ---------------------------------------------------------------
                                   Total........       25,411.80       10,722.12        9,660.23        9,659.86
                               ---------------------------------------------------------------------------------
    Combined (WV & OH)........  ................       26,288.91       11,251.84       10,186.03       10,184.04
    Total.....................
----------------------------------------------------------------------------------------------------------------

    EPA is proposing to find that the maintenance inventory provided in 
Table 2 shows maintenance of the SO2 NAAQS in the 
Steubenville Nonattainment Area by providing emissions information to 
support the demonstration that future emissions of SO2 will 
remain below the 2016 emission levels (an inventory year showing 
attainment of the SO2 NAAQS).
    According to West Virginia's submittal, the demonstration that 
improvement in air quality occurred between the nonattainment and 
attainment years is based on permanent and enforceable emission 
reductions. The permanent and enforceable SO2 emission 
reductions described in Section V of this notice, which includes the 
SIP-approved consent order CO-SIP-C-2017-9 for MSC, ensure that 
SO2 emissions in the West Virginia portion of the 
Steubenville Nonattainment Area will not exceed the maintenance level 
emissions shown in Table 2. This is an acceptable method for 
demonstrating maintenance. See 2014 SO2 Guidance, p. 67. 
West Virginia's maintenance plan notes that West Virginia and Ohio have 
comprehensive programs to identify sources of violations of the 
SO2 NAAQS as well as EPA-approved compliance and enforcement 
programs to address violations. Therefore, EPA proposes to find that 
West Virginia's demonstration of maintenance of the SO2 
NAAQS in the Steubenville Nonattainment Area is based on permanent and 
enforceable control measures.

3. Commitment for Continued Air Quality Monitoring

    In their submittal, West Virginia commits to continue monitoring 
SO2 levels at the SO2 monitoring sites in West 
Virginia identified in Table 1 of this notice. West Virginia also 
commits to consulting with EPA Region III prior to making any changes 
to the existing monitoring network and continuing to quality assure the 
monitoring data to meet the requirements of 40 CFR part 58 and all 
other Federal requirements.

[[Page 16045]]

West Virginia also notes that Consent Order Number CO-SIP-C-2017-9 for 
MSC and permit for the Cardinal Power Plant establish monitoring, 
testing, recordkeeping, and reporting requirements to assure compliance 
with SO2 emission limits which have been demonstrated to not 
cause a violation of the SO2 NAAQS. Therefore, EPA proposes 
to find that West Virginia's maintenance plan includes a commitment for 
continued air quality monitoring.

4. Verification of Continued Attainment

    In their submittal, West Virginia commits to maintaining the 
aforementioned control measures after redesignation of the Steubenville 
Nonattainment Area and that any changes to their rules or emission 
limits applicable to maintenance of the 2010 1-hour SO2 
standard in the West Virginia portion of the Steubenville Nonattainment 
Area will be submitted to EPA for approval as a SIP revision. West 
Virginia states that they have the legal authority and necessary 
resources to actively enforce any violations of their rules or permit 
provisions and that they intend to continue the enforcement of all 
rules related to SO2 emissions in the West Virginia portion 
of the Steubenville Nonattainment Area.
    In addition, West Virginia commits to continue to provide updates 
to future emissions inventories in accordance with EPA's Air Emissions 
Reporting Requirements (AERR) rule and to continue to submit emission 
inventories every three years. EPA is proposing to find that West 
Virginia's maintenance plan provides for the verification of continued 
attainment in the Steubenville Nonattainment Area.

5. Contingency Plan

    Section 175A(d) of the CAA requires that maintenance plans include 
such contingency measures as EPA deems necessary to assure that the 
state will promptly correct a violation of the NAAQS that occurs after 
a redesignation of the area to attainment. Pursuant to EPA's 2014 
SO2 Guidance, p. 69, in the case that attainment revolves 
around compliance of a single source or a small set of sources with 
emission limits shown to provide for attainment, EPA interprets 
``contingency measures'' to mean that the state agency has a 
comprehensive program to identify sources of violations of the 
SO2 NAAQS and to undertake an aggressive follow-up for 
compliance and enforcement. The Steubenville Nonattainment Area is an 
area where attainment is dependent on the compliance of a small set of 
sources with emission limits shown to provide for attainment, 
specifically MSC in West Virginia and the Cardinal Power Plant in Ohio. 
In their submittal, West Virginia verifies that both West Virginia and 
Ohio have comprehensive enforcement programs to identify sources of 
violations of the SO2 NAAQS and EPA-approved compliance and 
enforcement programs to undertake aggressive follow-up for any 
violations. Therefore, EPA proposes to find that West Virginia's 
maintenance plan satisfies the contingency measures requirement of CAA 
175A(d).
    West Virginia's contingency measures identify triggers and 
corresponding responses. In the event that the 99th percentile of the 
1-hour daily SO2 maximum concentration of 75 ppb occurs in a 
single calendar year within the Steubenville Nonattainment Area, a 
``warning level response'' will be triggered. The warning level 
response will consist of a study to determine whether SO2 
values indicate a trend toward higher SO2 values or whether 
emissions appear to be increasing, as well as the control measures 
necessary to reverse the trend, if needed. The implementation of 
necessary controls in response to a warning level response trigger will 
occur as expeditiously as possible, but no later than 12 months from 
the conclusion of the most recent calendar year. In the event that a 2-
year average of the 99th percentile 1-hour SO2 concentration 
of 75 ppb or greater or the violation of the SO2 NAAQS 
occurs within the Steubenville Nonattainment Area, an ``action level 
response'' will be triggered. If the exceedance is found to not be due 
to an exceptional event, malfunction, or noncompliance with a permit 
condition or rule requirement, West Virginia Division of Air Quality 
(DAQ), in conjunction with the metropolitan planning organization (MPO) 
or regional council of governments, will determine additional control 
measures needed to assure continued attainment of the 2010 
SO2 NAAQS. Selected measures will be those that can be 
implemented within 18 months from the close of the calendar year that 
prompted the action level response.
    Based on the above, EPA proposes to find that West Virginia's 
maintenance plan adequately addresses the five requirements in section 
175A that are necessary to maintain the 2010 1-hour SO2 
NAAQS in the Steubenville Nonattainment Area.

VII. Proposed Action

    In accordance with West Virginia's August 22, 2019 request, EPA is 
proposing to redesignate the West Virginia portion of the Steubenville 
Nonattainment Area from nonattainment to attainment of the 2010 
SO2 NAAQS. The West Virginia portion of the nonattainment 
area includes Cross Creek Tax District in Brooke County. West Virginia 
has demonstrated that the Area is attaining the SO2 NAAQS 
and that the improvement in air quality is due to permanent and 
enforceable SO2 emission reductions in the Area. EPA is also 
proposing to approve, as a revision to the West Virginia SIP, West 
Virginia's maintenance plan. EPA is proposing to find that the 
maintenance plan demonstrates maintenance of the SO2 NAAQS 
through 2030 in the Steubenville Nonattainment Area and satisfies the 
requirements of CAA section 175A.

VIII. Statutory and Executive Order Reviews

    Under the CAA, redesignation of an area to attainment and the 
accompanying approval of a maintenance plan under section 107(d)(3)(E) 
are actions that affect the status of a geographical area and do not 
impose any additional regulatory requirements on sources beyond those 
imposed by state law. A redesignation to attainment does not in and of 
itself create any new requirements, but rather results in the 
applicability of requirements contained in the CAA for areas that have 
been redesignated to attainment. Moreover, the Administrator is 
required to approve a SIP submission that complies with the provisions 
of the CAA 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);
     Is not an Executive Order 13771 (82 FR 9339, February 2, 
2017) regulatory action because SIP approvals are exempted under 
Executive Order 12866;
     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

[[Page 16046]]

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 as 
defined in 18 U.S.C. 1151 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 proposing approval of the redesignation of the 
Steubenville Nonattainment Area and associated maintenance plan 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: March 10, 2020.
Cosmo Servidio,
Regional Administrator, Region III.
[FR Doc. 2020-05661 Filed 3-19-20; 8:45 am]
BILLING CODE 6560-50-P


