Air Plan Approval; New Hampshire; Ambient Air Quality Standards

<RULE> ENVIRONMENTAL PROTECTION AGENCY <CFR>40 CFR Part 52</CFR> <DEPDOC>[EPA-R01-OAR-2024-0255; FRL-12071-02-R1]</DEPDOC> <SUBJECT>Air Plan Approval; New Hampshire; Ambient Air Quality Standards</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Environmental Protection Agency (EPA). <HD SOURCE="HED">ACTION:</HD> Final rule. <SUM> <HD SOURCE="HED">SUMMARY:</HD> The Environmental Protection Agency (EPA) is approving most of a State Implementation Plan (SIP) revision submitted by the State of New Hampshire. This revision updates the State regulation containing ambient air quality standards. EPA is approving all the State's updated standards, except the primary annual fine particle (PM <E T="52">2.5</E> ) standard, which we are conditionally approving because it does not match EPA's current National Ambient Air Quality Standard for PM <E T="52">2.5</E> . This action is being taken in accordance with the Clean Air Act. </SUM> <EFFDATE> <HD SOURCE="HED">DATES:</HD> This rule is effective on October 15, 2024. </EFFDATE> <HD SOURCE="HED">ADDRESSES:</HD> EPA has established a docket for this action under Docket Identification No. EPA-R01-OAR-2024-0255. All documents in the docket are listed on the <E T="03">https://www.regulations.gov</E> website. Although listed in the index, some information is not publicly available, <E T="03">i.e.,</E> CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy form. Publicly available docket materials are available at <E T="03">https://www.regulations.gov</E> or at the U.S. Environmental Protection Agency, EPA Region 1 Regional Office, Air and Radiation Division, 5 Post Office Square—Suite 100, Boston, MA. EPA requests that if at all possible, you contact the contact listed in the <E T="02">FOR FURTHER INFORMATION CONTACT</E> section to schedule your inspection. The Regional Office's official hours of business are Monday through Friday, 8:30 a.m. to 4:30 p.m., excluding legal holidays and facility closures due to COVID-19. <FURINF> <HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD> Alison C. Simcox, Air Quality Branch, Air and Radiation Division (Mail Code 5-MD), U.S. Environmental Protection Agency, Region 1, 5 Post Office Square, Suite 100, Boston, Massachusetts, 02109-3912, (617) 918-1684; <E T="03">simcox.alison@epa.gov.</E> </FURINF> <SUPLINF> <HD SOURCE="HED">SUPPLEMENTARY INFORMATION: </HD> Throughout this document whenever “we,” “us,” or “our” is used, we mean EPA. <HD SOURCE="HD1">Table of Contents</HD> <EXTRACT> <FP SOURCE="FP-2">I. Background and Purpose</FP> <FP SOURCE="FP-2">II. Final Action</FP> <FP SOURCE="FP-2">III. Incorporation by Reference</FP> <FP SOURCE="FP-2">IV. Statutory and Executive Order Reviews</FP> </EXTRACT> <HD SOURCE="HD1">I. Background and Purpose</HD> On July 11, 2024 (89 FR 56825), EPA published a Notice of Proposed Rulemaking (NPRM) for the State of New Hampshire. The NPRM proposed approval of New Hampshire's update to its Env-A 300, “Ambient Air Quality Standards” (AAQS). The formal SIP revision was submitted by the state on December 22, 2022. EPA determined that the state's updated AAQS are consistent with the National Ambient Air Quality Standards (NAAQS) in 40 CFR part 50 for all standards except the PM <E T="52">2.5</E> primary annual standard, which EPA strengthened subsequent to New Hampshire's SIP submittal (89 FR 16202). Additional background and rationale for EPA's proposed action are explained in the NPRM and will not be restated here. No public comments were received on the NPRM. <HD SOURCE="HD1">II. Final Action</HD> EPA is approving most of New Hampshire's revised Env-A 300, “Ambient Air Quality Standards” as a revision to the New Hampshire SIP. We are conditionally approving the primary annual PM <E T="52">2.5</E> standard, provided that the State submits in a timely manner the portion of Env-A 300 that includes the current EPA PM <E T="52">2.5</E> primary annual NAAQS of 9.0 µg/m <SU>3</SU> . The State must submit to EPA by a date not later than 1 year from final approval a revision to Env-A 300 that includes the current PM <E T="52">2.5</E> primary annual NAAQS. If the State fails to do so, this approval will become a disapproval on that date. EPA will notify the State by letter that this action has occurred. At that time, this commitment will no longer be a part of the approved New Hampshire SIP. EPA subsequently will publish a notice in the notice section of the <E T="04">Federal Register</E> notifying the public that the conditional approval automatically converted to a disapproval. If the State meets its commitment, within the applicable time frame, the conditionally approved submission will remain a part of the SIP until EPA takes final action approving or disapproving the new legislative authority. If EPA disapproves the new submittal, the conditionally approved regulation will also be disapproved at that time. If EPA approves the submittal, the regulation will be fully approved in its entirety and replace the conditionally approved regulation in the SIP. <HD SOURCE="HD1">III. Incorporation by Reference</HD> In this rule, 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 New Hampshire's regulation Env-A 300 “Ambient Air Quality Standards” as discussed in sections I and II of this preamble and described in the amendments to 40 CFR part 52 set forth below. The EPA has made, and will continue to make, these documents generally available through <E T="03">https://www.regulations.gov</E> and at the EPA Region 1 Office (please contact the person identified in the <E T="02">FOR FURTHER INFORMATION CONTACT</E> section of this preamble for more information). Therefore, these materials have been approved by EPA for inclusion in the State implementation plan, have been incorporated by reference by EPA into that plan, are fully federally enforceable under sections 110 and 113 of the CAA as of the effective date of the final rulemaking of EPA's approval, and will be incorporated by reference in the next update to the SIP compilation. <SU>1</SU> <FTREF/> <FTNT> <SU>1</SU>  62 FR 27968 (May 22, 1997). </FTNT> <HD SOURCE="HD1">IV. Statutory and Executive Order Reviews</HD> Under the Clean Air Act, the Administrator is required to approve a SIP submission that complies with the provisions of the Act and applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in reviewing SIP submissions, EPA's role is to approve state choices, provided that they meet the criteria of the Clean Air Act. 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 <E T="03">et seq.</E> ); • 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 <E T="03">et seq.</E> ); • 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); and • 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 Clean Air Act. In addition, 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). Executive Order 12898 (Federal Actions To Address Environmental Justice in Minority Populations and Low-Income Populations, 59 FR 7629, Feb. 16, 1994) directs Federal agencies to identify and address “disproportionately high and adverse human health or environmental effects” of their actions on communities with environmental justice (EJ) concerns to the greatest extent practicable and permitted by law. EPA defines EJ as “the fair treatment and meaningful involvement of all people regardless of race, color, national origin, or income with respect to the development, implementation, and enforcement of environmental laws, regulations, and policies.” EPA further defines the term fair treatment to mean that “no group of people should bear a disproportionate burden of environmental harms and risks, including those resulting from the negative environmental consequences of industrial, governmental, and commercial operations or programs and policies.” NH DES did not consider EJ; EPA did not perform an EJ analysis or consider EJ as part of its decision. NH DES did not evaluate environmental justice considerations as part of its SIP submittal; the CAA and applic ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Preview showing 10k of 15k characters. 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