SUPPLEMENTARY INFORMATION:

Throughout this document “we,” “us,” and “our” refer to the EPA.

Table of Contents

I. What is being addressed in this document?

II. What is EPA's analysis of the rule revisions?

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

IV. What action is the EPA taking?

V. Incorporation by Reference

VI. Statutory and Executive Order Reviews

I. What is being addressed in this document?

The EPA is partially approving and partially disapproving submissions from Missouri that revises 10 CSR 10-6.060 Construction Permits Required. The revisions were received by EPA on March 20, 2019, and June 10, 2021. The EPA proposed to partially approve and partially disapprove these submission on June 2, 2022 (87 FR 33464). The EPA's analysis of the revisions can be found in Section II of this document, Section III of the proposed rule, and in more detail in the technical support document (TSD) included in this docket.

II. What is EPA's analysis of the rule revisions?

In the 2019 SIP submission, MoDNR stated that the revisions to this rule were extensive in order to clarify requirements and procedures for improving readability and regulatory certainty. These changes remove outdated references to incorporation by reference information and added appropriate incorporation by reference information to this rule. The changes clarify the definition of “portable equipment installation” and added procedures for issuing general permits in addition to other minor typographical corrections. For portable equipment installations, the potential to emit major source threshold of particulate matter was changed to match federal requirements.

Also in Missouri's 2019 submission, the State requested to add a provision for voluntary permits. The EPA is disapproving Section (1)(B) of 10 CSR 10-6.060 regarding voluntary permits. EPA finds that the language of the voluntary permit provision is too vague. For a SIP revision to be approved, EPA evaluates the rule revisions to ensure that any new provisions are permanent, quantifiable, and enforceable. EPA is disapproving because there is no information in the rule on the conditions, requirements, and parameters for applying for, issuing, or implementing voluntary permits. Based on the limited language in the rule, it is unclear how MoDNR intended to implement the provision. The rule text and EPA's full analysis of the requested revisions is included in the TSD.

Missouri's 2021 SIP submission amendments consisted primarily of administrative text edits and clarifications. A clarification to the definition of Portable equipment was added in Section 2 to explicitly state that “any other air pollutant” includes PM₁₀ and PM_2.5. As discussed in the TSD, EPA finds that this rule revision would not interfere with maintenance of the PM_2.5 or PM₁₀ NAAQS. The submission also clarified referenced materials and ensures consistency with the federal requirements.

Based on EPA's analysis of the requested revisions to 10 CSR 10-6.060 ( printed page 49531) as summarized here and more fully described in the TSD, EPA is approving all requested revisions, other than section (1)(B) regarding voluntary permits, because they meet the requirements of the Clean Air Act (CAA), do not negatively impact the stringency of the SIP, or have an adverse impact to air quality.

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

With respect to the portions of the submittal which EPA is approving, the State submission 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 August 1, 2018 to October 4, 2018 and received 56 comments. 32 comments were made by EPA, 21 comments from State of Missouri Air Program Staff, and 4 from the public. The State of Missouri revised the rule and responded to comments prior to submitting to the EPA. In addition, as explained above (and in more detail in the technical support document which is included in the docket for this action), the revisions proposed for approval meet the substantive SIP requirements of the CAA, including section 110 and implementing regulations.

As explained in Section II and further in the TSD, EPA is disapproving Section (1)(B) of 10 CSR 10-6.060 regarding voluntary permits.

The EPA received no comments on the proposed rule during the public comment period which opened on June 2, 2022, the date of publication in the Federal Register , and closed on July 5, 2022.

IV. What action is the EPA taking?

The EPA is amending the Missouri SIP by partially approving and partially disapproving the State's request to revise 10 CSR 10-6.060 “Construction Permits Required.” Under section 179(a) of the CAA, final disapproval of a submittal that addresses a requirement of part D, title I of the CAA (CAA sections 171-193) or is required in response to a finding of substantial inadequacy as described in CAA section 110(k)(5) (SIP Call) starts a sanctions clock. The Missouri SIP submission that we are partially disapproving was not submitted to meet either of these requirements. Therefore, this partial disapproval will not trigger mandatory sanctions under CAA section 179. In addition, CAA section 110(c)(1) provides that EPA must promulgate a Federal Implementation Plan (FIP) within two years after either finding that a State has failed to make a required submission or disapproving a SIP submission in whole or in part, unless EPA approves a SIP revision correcting the deficiencies within that two-year period. With respect to our partial disapproval of Missouri's SIP submission, however, we conclude that any FIP obligation resulting from this partial disapproval is satisfied by our determination that there is no deficiency in the SIP to correct. Specifically, we are approving all revisions to the state rule except the voluntary permits provision discussed in this action therefore this action creates no deficiency in the SIP.

V. Incorporation by Reference

In this document, the EPA is finalizing regulatory text that includes incorporation by reference. In accordance with requirements of 1 CFR 51.5, the EPA is finalizing the incorporation by reference of the Missouri rule 10 CSR 10-6.060 as described in Section I of this preamble and set forth below in the 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).

VI. 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:

• Is not a significant regulatory action subject to review by the Office of Management and Budget under Executive Orders 12866 (58 FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 2011);
• Does not impose an information collection burden under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
• Is certified as not having a significant economic impact on a substantial number of small entities under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.);
• Does not contain any unfunded mandate or significantly or uniquely affect small governments, as described in the Unfunded Mandates Reform Act of 1995 (Pub. L. 104-4);
• Does not have federalism implications as specified 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).
• In addition, the SIP is not approved to apply on any Indian reservation land or in any other area where the 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 byExecutive Order 13175 (65 FR 67249, November 9, 2000).
• This action is subject to the Congressional Review Act, and the EPA will submit a rule report to each House of the Congress and to the Comptroller General of the United States. This action is not a “major rule” as defined by5 U.S.C. 804(2).
• Under section 307(b)(1) of the CAA, petitions for judicial review of this action must be filed in the United States Court of Appeals for the appropriate circuit by October 11, 2022. Filing a petition for reconsideration by the Administrator of this final rule does not affect the finality of this action for the purposes of judicial review nor does it extend the time within which a petition for judicial review may be filed, and shall not postpone the effectiveness of such rule or action. This action may not be challenged later in proceedings to enforce its requirements (see section 307(b)(2)).

For the reasons stated in the preamble, the EPA amends 40 CFR part 52 as set forth below:

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

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

2. In § 52.1320, the table in paragraph (c) is amended by revising the entry “10-6.060” under the heading “Chapter 6—Air Quality Standards, Definitions, Sampling and Reference Methods, and Air Pollution Control Regulations for the State of Missouri” to read as follows:

87 FR 49530