Air Plan Approval; Tennessee; Second Period Regional Haze Plan

Document Headings 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-R04-OAR-2019-0308; FRL-10404-02-R4] AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule. SUMMARY: The Environmental Protection Agency (EPA) is approving a regional haze State Implementation Plan (SIP) revision submitted by Tennessee Department of Environmental Conservation (TDEC), dated February 23, 2022, (“Haze Plan” or “2022 Plan”), as satisfying applicable requirements under the Clean Air Act (CAA or Act) and EPA's Regional Haze Rule (RHR) for the regional haze program's second planning period. Tennessee's SIP submission addresses the requirement that states must periodically revise their long-term strategies (LTSs) for making reasonable progress toward the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas (hereinafter referred to as “Class I areas”). The SIP submission also addresses other applicable requirements for the second planning period of the regional haze program. EPA is taking this action pursuant to sections 110 and 169A of the Act. DATES: This rule is effective January 12, 2026. ADDRESSES: EPA has established a docket for this action under Docket Identification No. EPA-R04-OAR-2019-0308. All documents in the docket are listed on the regulations.gov website. Although listed in the index, some information may not be publicly available, i.e. , Con…