Document headings vary by document type but may contain
                    the following: the agency or agencies that issued and signed a document
the number of the CFR title and the number of each part
                      the document amends, proposes to amend, or is directly
                      related to
the agency docket number / agency internal file number
the RIN which identifies each regulatory action listed in
                      the Unified Agenda of Federal Regulatory and Deregulatory
                      Actions See the
                    Document Drafting Handbook
                    for more details.
 Environmental Protection Agency 40 CFR Part 52
[EPA-R07-OAR-2020-0695; FRL-10018-78-Region 7]
 AGENCY: Environmental Protection Agency (EPA).
 ACTION: Proposed rule.
 SUMMARY: The Environmental Protection Agency (EPA) is proposing approval of revision to the Missouri State Implementation Plan (SIP), submitted by the Missouri Department of Natural Resources (MoDNR) on September 15, 2020. The proposed revision removes the Kansas City, Missouri low Reid Vapor Pressure (RVP) requirement which required gasoline sold in the Kansas City, Missouri area to have a seven pounds per square inch Reid Vapor Pressure from June 1 to September 15. The majority of the state is subject to the Clean Air Act (CAA) nine pounds per square inch Reid Vapor Pressure from June 1 to September 15. If approved the Kansas City, Missouri area would be subject to the Clean Air Act Reid Vapor Pressure requirement. In addition, EPA anticipates issuing a separate proposal for the Kansas side of the Kansas City metro area.
 DATES: Comments must be received on or before January 22, 2021.
 ADDRESSES: You may send comments, identified by Docket ID No. EPA-R07-OAR-2020-0695 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 Wolkins, Environmental Protection Agency, Region 7 Office, Air Quality Planning Branch, 11201 Renner Boulevard, Lenexa, Kansas 66219; telephone number: (913) 551-7588; email address: 
                        *wolkins.jed@epa.gov*.


SUPPLEMENTARY INFORMATION: Throughout this document “we,” “us,” and “our” refer to the EPA.
                    ( print page 83878) Table of Contents I. Written Comments II. What is being addressed in this document? III. Have the requirements for approval of a SIP Revision Been Met? IV. Background V. What is the EPA's analysis of Missouri's SIP request? VI. What action is the EPA taking? VII. Incorporation by Reference VIII. Statutory and Executive Order Reviews I. Written Comments Submit your comments, identified by Docket ID No. EPA-R07-OAR-2020-0695, 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? The EPA is proposing to approve a revision to the Missouri SIP, submitted by the MoDNR on September 15, 2020. The proposed revision removes the Kansas City, Missouri; Clay, Jackson, and Platte Counties; seven pounds per square inch (psi) Reid Vapor Pressure (RVP) requirement. The approved SIP, 10 CSR 10-2.330, requires gasoline sold in the three counties to have an RVP of seven psi or less from June 1 through September 15.[1]
                    
                     If the SIP revision is approved, the Kansas City, Missouri area would be subject to the CAA RVP requirement of nine psi or less from June 1 through September 15.[2]
                    
                     Missouri has asked EPA to remove 10 CSR 10-2.330, Control of Gasoline Reid Vapor Pressure from the SIP. III. Have the requirements for approval of a SIP revision been met? The State submission has 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 this SIP revision from February 18, 2020 to April 2, 2020 and received three comments. Missouri adequately responded to the comments but did not change the removal based on the comments. In addition, as explained below, the revision meets the substantive SIP requirements of the CAA, including section 110 and implementing regulations. IV. Background The EPA established a 1-hour ozone NAAQS in 1971.[3]36 FR 8186 (April 30, 1971). On March 3, 1978, the EPA designated Clay, Platte and Jackson counties (hereinafter referred to in this document as the “Kanas City area”) in nonattainment of the 1971 1-hour ozone NAAQS, as required by the CAA Amendments of 1977. 43 FR 8962 (March 3, 1978). On February 8, 1979, the EPA revised the 1-hour ozone NAAQS, referred to as the 1979 ozone NAAQS. 44 FR 8202 (February 8, 1979). The EPA redesignated the Kansas City area to attainment of the 1979 1-hour ozone standard and approved the ozone maintenance plan on July 23, 1992. 57 FR 27939 (June 23, 1992). Pursuant to section 175A of the CAA, the first 10-year maintenance period for the 1-hour ozone standard began on July 23, 1992, the effective date of the redesignation approval. In 1995, the Kansas City area violated the 1979 1-hour ozone standard. Missouri revised the control strategy and contingency measures in the maintenance plan, which was approved on June 24, 2002. 67 FR 20036 (April 24, 2002). The revised control strategy included 10 CSR 10-2.330, 
                    *Control of Gasoline Reid Vapor Pressure*. On January 1, 1997, Missouri adopted the seven and two tenths (7.2) pounds per square inch (psi) Reid Vapor Pressure (RVP) limit from June 1 to September 15.[4]
                    
                     EPA approved this rule into the SIP on April 24, 1998.[5]
                    
                     On April 3, 2001, Missouri revised the rule to seven (7.0) psi limit from June 1 to September 15.[6]
                    
                     EPA approved this rule into the SIP on February 13, 2002.[7] On April 30, 2004, the EPA published a final rule in the 
                    **Federal Register**
                     stating the 1979 ozone NAAQS would no longer apply (
                    *i.e.,*
                     would be revoked) for an area one year after the effective date of the area's designation for the 8-hour ozone NAAQS. 69 FR 23951 (April 30, 2004). The Kansas City Area was designated as an unclassifiable area for the 1997 8-hour ozone NAAQS, effective June 15, 2004. 
                    *See id.*
                     However, on May 3, 2005, EPA published a final rule designating the Kansas City area as an attainment area for the 1997 8-hour ozone NAAQS based on new monitoring data. 
                    *See*70 FR 22801 (May 3, 2005). The effective date of the revocation of the 1979 1-hour ozone standard for the Kansas City area was June 15, 2005. 
                    *See*70 FR 44470 (August 3, 2005). Missouri achieved the required maintenance of the 1979 1-hour ozone standard in 2014. On September 15, 2020, Missouri requested that the EPA remove 10 CSR 10-2.330 from the SIP. Section 110(l) of the CAA prohibits EPA from approving a SIP revision that interferes with any applicable requirement concerning attainment and reasonable further progress (RFP), or any other applicable requirement of the CAA. V. 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 RVP requirements result primarily in emissions benefits for VOCs and NOX
                    . VOCs and NOX
                     emissions are precursors for ozone. NOX
                     emissions are precursors for particulate matter. NO2
                     is a component of NOX
                    . There are no emissions reductions attributable to the emissions of carbon monoxide (CO), lead and sulfur dioxide (SO2) from RVP requirements. In Missouri's September 15, 2020 submission the State provided a technical demonstration to support the request to remove Missouri's 7.0 psi RVP requirement from the active measures portions of the Missouri SIP. In that technical demonstration, Missouri provided Motor Vehicle Emissions Simulator (MOVES) results, 
                    ( print page 83879)
                    modeling the emissions of VOCs and NOX
                     associated with changing the high ozone season RVP requirements from the state-level requirement of 7.0 psi to the federal requirement of 9.0 psi. EPA evaluated the state's assumptions and inputs used in MOVES, and EPA finds the state analysis is appropriate. Specifically, MDNR compared what the projected emissions in the year 2020 (the year the program is requested to be rescinded) would be, assuming a RVP level of 7.0 psi and 9.0 psi, respectively, in two separate modeling simulations. The comparison revealed an increase in emissions of 0.17 tons for NOX
                     and 0.71 tons for VOC, per ozone season day, would result from the change to the federal requirement from June 1 through September 15. While the modeling showed a slight increase in NOX
                     and VOC emissions resulting from the use of 9.0 psi RVP as opposed to 7.0 psi, the most appropriate analysis is whether emissions in the future years would increase and potentially interfere with maintenance of the NAAQS. The State compared actual emissions from 2017 using a RVP of 7.0 psi to emissions modelled for the years 2020 using a RVP of 9.0 psi. Table 1 below provides the results of this analysis. Table 1—Comparative Emissions for Change to RVP
2017 7.0 psi RVP 
                             (tons per ozone season day)
2020 7.0 psi RVP 
                             (tons per ozone season day)
2020 9.0 psi RVP 
                             (tons per ozone season day)
Decrease in 2020 9.0 psi RVP compared to 2017 7.0 psi RVP 
                             (tons per ozone season day)NO
                            X
57.01
43.51
43.68
13.33VOC
31.25
28.11
28.82
2.43
 As Table 1 indicates, NOX
                     and VOC emissions in the Kansas City Area would decrease from 2017 to 2020, even with the increase due to ozone season fuel RVP of 9.0 psi. The modeling demonstration shows the slight increase in emissions is being mitigated area-wide by a steady decrease in tailpipe emissions. This is the result of a cleaner new vehicle fleet replacing the older fleet [8]
                    
                     and the decrease in the sulfur content in gasoline as required by EPA's Tier 3 motor vehicle emission and fuel standards, which were implemented beginning on January 1, 2017.[9] The Kansas City, Missouri area is designated attainment/unclassifiable or attainment for the 1979, 1997, 2008, and 2015 ozone standards. While the 1979 maintenance plan is approved into the SIP, the 1979 NAAQS has been revoked for the Kansas City area. There are no other ozone maintenance plans for the Kansas City area in the SIP. The highest monitor design value in the Kansas City area is 68 parts per billion (ppb), which is below the 2015 ozone NAAQS of 70 ppb.[10]
                    
                     Based on the state's modeling analysis, along with air quality data, EPA is making the preliminary determination that the slight increase in NOX
                     and VOC emissions resulting from the use of 9.0 psi RVP fuel will not interfere with the Kansas City area's ability to maintain the ozone NAAQS, or any other applicable requirement. The EPA is making this determination based on MOVES modeling that indicates that on-road VOC and NOX
                     emissions in 2020 with gasoline meeting the 9.0 psi RVP requirement remain below the emissions levels in 2017, a year in which the area's design value was also below the 2015 ozone standard of 70 ppb. The Kansas City area is designated as attainment or unclassifiable for the 2006 24-hour PM2.5, 2012 annual PM2.5, 1971 annual NO2, and 2010 1-hour NO2
                     standards. There are no maintenance plans for any of these standards. The highest PM2.5
                     design value is 75% of the standard. The highest NO2
                     design value is 50% of the standard. As discussed above the area has a decrease from 2017 to 2020 in NOX
                     and VOC emissions. Based on this data together with air quality data, EPA is making the preliminary determination that the slight increase in NOX
                     and VOC emissions in 2020 and the downward trend in on-road VOC and NOX
                     emissions resulting from this change will not interfere with the Area's ability to maintain the any PM2.5
                     or NO2
                     NAAQS, or any other applicable requirement. The Platte and Clay Counties of the Kansas City area are designated as attainment or unclassifiable for the SO2
                     standards. Jackson county is designated as nonattainment. There are no maintenance plans for any of these standards. The most recent (2017-2019) highest SO2
                     design value is in Jackson County and is less than 15% of the standard. The RVP standard has no effect on SO2
                     emissions. 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 attain or maintain the SO2
                     NAAQS, or any other applicable requirement. The Kansas City area is designated as attainment or unclassifiable for the CO and lead standards. There are no maintenance plans for any of these standards. The highest CO design value is less than 20% of the standard. There is no lead monitoring in the area. The RVP standard has no effect on CO or lead emissions. 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 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 1 areas nor any Class 1 area in another state Missouri impacts. VI. What action is the EPA taking? We are proposing to approve Missouri's removal of the state RVP requirement from the SIP for the Kansas City, Missouri area. As discussed above the removal of the RVP requirement will not affect the area's ability to attain or maintain any air quality standard. We are processing this as a proposed action because we are soliciting comments on this proposed action. Final rulemaking will occur after consideration of any comments. VII. Incorporation by Reference In this document, the EPA is proposing to amend regulatory text that includes incorporation by reference. As described in the proposed amendments to 40 CFR part 52 set forth below, the EPA is proposing to remove provisions of the EPA-Approved Missouri 
                    ( print page 83880)
                    Regulations from the Missouri State Implementation Plan, which is incorporated by reference in accordance with the requirements of 1 CFR part 51. 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, 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: 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 anExecutive 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 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 inExecutive Order 13132 (64 FR 43255, August 10, 1999);
                Is not an economically significant regulatory action based on health or safety risks subject toExecutive Order 13045 (62 FR 19885, April 23, 1997);
                Is not a significant regulatory action subject toExecutive Order 13211 (66 FR 28355, May 22, 2001);
                Is not subject to requirements of the National Technology Transfer and Advancement Act (NTTA) because this rulemaking does not involve technical standards; 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, underExecutive 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 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: December 14, 2020. James Gulliford, 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
 1.The authority citation for part 52 continues to read as follows: Authority:
                    42 U.S.C. 7401 
                        *et seq.* Subpart-AA Missouri § 52.1320
 2.In § 52.1320, the table in paragraph (c) is amended by removing the entry “10-2.330” under the heading “Chapter 2-Air Quality Standards and Air Pollution Control Regulations for the Kansas City Metropolitan Area”. 3.In § 52.1323, paragraph (n) is revised to read as follows: § 52.1323
  
 (n) Missouri rule 10 CSR 10-2.330 was rescinded on January 22, 2021.


# Footnotes

1.
    
                         The Missouri rule allows an additional one psi for gasoline containing 9 to 10% ethanol. Back to Citation
 2.
    
                         The CAA allows an additional one psi for gasoline containing up to 15% ethanol. Back to Citation
 3.
    
                         The 1-hour ozone NAAQS was originally promulgated as a photochemical oxidant standard. See 36 FR 8186 (April 30, 1971). In 1979, the EPA substituted the word “ozone” for “photochemical oxidant”. See 44 FR 8202 (February 8, 1979). In doing so, the EPA stated that “(t)he intent of the standard (total-oxidant reduction), the control strategies, and the index of Progress toward attainment (measured ozone levels) remain unchanged.” Id. at 8203. Back to Citation
 4.
    
                         The Missouri rule allowed an additional one psi for gasoline containing 9 to 10% ethanol. Back to Citation
 5.
    
                         63 FR 20318. Back to Citation
 6.
    
                         The Missouri rule allows an additional one psi for gasoline containing 9 to 10% ethanol. Back to Citation
 7.
    
                         67 FR 6658. Back to Citation
 8.
    
                         As vehicle owners purchase new vehicles, the older vehicles slowly are removed from the vehicles on the road. A used vehicle maybe purchased and driven by several owner, but eventually the older, more polluting vehicles are removed from the road. Manufactures' fleets in 1994 are allowed 0.6 gram/mile NOX
                         emissions. Manufactures' fleets in 2004 are allowed 0.07 gram/mile Nox emissions. Manufactures' fleets in 2025 will be allowed 0.03 gram/mile NOX
                         emissions. Back to Citation
 9.
    
                         Control of Air Pollution From Motor Vehicles: Tier 3 Motor Vehicle Emission and Fuel Standards (See 79 FR 23414, April 28, 2014.) Back to Citation
 10.
    
                         Based on the most recent quality assured data design values (2017-2019). Back to Citation


[FR Doc. 2020-28119 Filed 12-22-20; 8:45 am] BILLING CODE 6560-50-P