SUPPLEMENTARY INFORMATION:

Throughout this document, the use of “we” and “us” is intended to refer to the EPA.

Table of Contents

I. Background

II. Evaluation

III. Proposed Action

IV. Incorporation by Reference

V. Statutory and Executive Order Reviews

I. Background

Section 110 of the Clean Air Act specifies the general requirements for states to submit SIPs to attain and maintain the NAAQS and the EPA's actions on such submissions. To efficiently adopt and implement the NAAQS and related requirements, Idaho incorporates certain Federal regulations by reference into the Idaho air rules (IDAPA 58.01.01) at IDAPA 58.01.01.107.03 Incorporation by Reference. Idaho then submits some of those provisions to the EPA for approval and codification into the Code of Federal Regulations (CFR) at 40 CFR part 52, subpart N (Idaho SIP). When Federal regulations are revised, Idaho updates the date by which the regulations are incorporated by reference and submits the updates to the EPA for approval.

II. Evaluation

The current Idaho SIP incorporates the following regulations by reference, as of July 1, 2019, at IDAPA 58.01.01.107.03, paragraphs a through e:

• National Primary and Secondary Ambient Air Quality Standards,40 CFR part 50;
• Requirements for Preparation, Adoption, and Submittal of Implementation Plans,40 CFR part 51, with the exception of certain visibility-related provisions;
• Approval and Promulgation of Implementation Plans,40 CFR part 52, subparts A and N, and appendices D and E;
• Ambient Air Monitoring Reference and Equivalent Methods,40 CFR part 53; and
• Ambient Air Quality Surveillance,40 CFR part 58.

On October 12, 2021, Idaho submitted updates to the SIP to incorporate these regulations by reference as of July 1, 2020. Between July 1, 2019 and July 1, 2020, most of these incorporated Federal regulations did not change. However, the EPA did revise 40 CFR part 52 subpart N to approve three Idaho SIP revisions. See 84 FR 45918, September 3, 2019; 84 FR 67189, December 9, 2019; and 85 FR 9664, February 20, 2020. In addition, the EPA revised 40 CFR part 58 to delay the implement of revised photochemical assessment monitoring systems. See 85 FR 834, January 8, 2020.

After reviewing the submitted updates, we have made the preliminary determination that the updates are consistent with Clean Air Act requirements.

III. Proposed Action

The EPA proposes to approve and incorporate by reference the updates to the Idaho SIP submitted on October 12, 2021. Upon final approval, the Idaho SIP will include IDAPA 58.01.01.107.03, paragraphs a through e, State effective June 17, 2021, which, as discussed in section II of this preamble, incorporate by reference the specified Federal regulations as of July 1, 2020.

IV. Incorporation by Reference

In this document, the EPA is proposing to include in a final rule, regulatory text that includes incorporation by reference. In accordance with requirements of 1 CFR 51.5, the EPA is proposing to incorporate by reference the provisions described in section III of this preamble. The EPA has made, and will continue to make, these documents generally available through https://www.regulations.gov and at the EPA Region 10 Office (please contact the person identified in the FOR FURTHER INFORMATION CONTACT section of this preamble for more information).

V. Statutory and Executive Order Reviews

Under the Clean Air Act, the Administrator is required to approve a SIP submission that complies with the provisions of the Clean Air 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 Clean Air Act. Accordingly, this proposed 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 proposed 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 Section 12(d) of the National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 note) because application of the requirements would be inconsistent with the Clean Air Act; and
• Does not provide the 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, this proposed rulemaking would not apply on any Indian reservation land or in any other area in ( printed page 16133) Idaho where the EPA or an Indian tribe has demonstrated that a tribe has jurisdiction. In those areas of Indian country, the proposed rule would not have tribal implications as specified by Executive Order 13175 (65 FR 67249, November 9, 2000).

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

87 FR 16131