Incorporation by reference

Approval and Promulgation of Air Quality State Implementation Plans; California; Plumas County; Moderate Area Plan for the 2012 PM2.5

The Environmental Protection Agency (EPA) is taking final action to approve a state implementation plan (SIP) revision submitted by the State of California to address Clean Air Act (CAA or ``Act'') requirements for the 2012 annual fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standard (NAAQS or ``standard'') in the Plumas County Moderate PM<INF>2.5</INF> nonattainment area (``Portola nonattainment area'').

Publication Date: 
Wednesday, March 3, 2021 - 4:00am

Air Plan Approval; Ohio; Base Year Emission Inventories and Emissions Statement Rule Certification for the 2015 Ozone Standard

The Environmental Protection Agency (EPA) is approving, under the Clean Air Act (CAA), a revision to the State Implementation Plan (SIP) submitted by the Ohio Environmental Protection Agency on July 24, 2020. The CAA establishes emission inventory requirements for all ozone nonattainment areas. The revision addresses the emission inventory requirements for the Cleveland, Ohio (OH) ozone nonattainment area and the Ohio portion of the Cincinnati, Ohio-Kentucky (Cincinnati) ozone nonattainment area, as designated under the 2015 ozone National Ambient Air Quality Standard (NAAQS or standard).

Publication Date: 
Wednesday, March 3, 2021 - 4:00am

Designation of Areas for Air Quality Planning Purposes; Indiana; Redesignation of the Southwest Indiana Sulfur Dioxide Nonattainment Area

In accordance with the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is redesignating the Southwest Indiana nonattainment area, which consists of a portion of Daviess County and a portion of Pike County (Veale Township in Daviess County and Washington Township in Pike County), to attainment for the 2010 primary, health- based 1-hour sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS). EPA is also approving Indiana's maintenance plan for the Southwest Indiana SO<INF>2</INF> nonattainment area.

Publication Date: 
Tuesday, March 2, 2021 - 4:00am

Air Plan Approval; Tennessee; Nitrogen Oxides SIP Call Plan

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision concerning nitrogen oxides (NO<INF>X</INF>) emissions submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), through a letter dated December 19, 2019, which revises the Tennessee Air Pollution Control Rule (TAPCR) titled ``NO<INF>X</INF> SIP Call Requirements for Stationary Boilers and Combustion Turbines'' (TN 2017 NO<INF>X</INF> SIP Call Rule) to correct the definition of ``affected unit'' and to clarif

Publication Date: 
Tuesday, March 2, 2021 - 4:00am

Air Plan Approval; Minnesota; Revision to Taconite Federal Implementation Plan

The Environmental Protection Agency (EPA) is revising a Federal implementation plan (FIP) addressing the requirement for best available retrofit technology (BART) for the United States Steel Corporation's (U.S. Steel) taconite plant located in Mt. Iron, Minnesota (Minntac or Minntac facility). We are revising the nitrogen oxides (NO<INF>X</INF>) limits for U.S. Steel's taconite furnaces at its Minntac facility because new information has come to light that was not available when we originally promulgated the FIP on February 6, 2013.

Publication Date: 
Tuesday, March 2, 2021 - 4:00am

Air Plan Approval; North Carolina; Revisions to Construction and Operation Permits

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the North Carolina State Implementation Plan (SIP) submitted by the State of North Carolina through the North Carolina Department of Environmental Quality, Division of Air Quality (DAQ), on July 10, 2019. The SIP revision seeks to modify the State's construction and operation permitting regulations by making minor changes that do not significantly alter the meaning of the regulations. EPA is approving this revision pursuant to the Clean Air Act (CAA or Act).

Publication Date: 
Monday, March 1, 2021 - 4:00am

Air Plan Approval; KY; Updates to Attainment Status Designations

The Environmental Protection Agency (EPA) is taking final action to approve a State Implementation Plan (SIP) revision submitted by the Commonwealth of Kentucky, through the Kentucky Division for Air Quality (KDAQ), on December 9, 2019. The SIP revision updates the description and attainment status designations of geographic areas within the Commonwealth for several National Ambient Air Quality Standards (NAAQS or standards). The updates are being made to conform Kentucky's attainment status tables with the federal attainment status designations for these areas.

Publication Date: 
Monday, March 1, 2021 - 4:00am

Air Plan Approval; Texas; Clean Air Act Requirements for Enhanced Vehicle Inspection and Maintenance and Nonattainment New Source Review

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve portions of two State Implementation Plan (SIP) revisions submitted by the State of Texas for the 2008 8-hour ozone National Ambient Air Quality Standard (NAAQS). The SIP revisions proposed for approval describe how CAA requirements for vehicle Inspection and Maintenance (I/M) and Nonattainment New Source Review (NNSR) are met in the Dallas-Fort Worth (DFW) and Houston-Galveston-Brazoria (HGB) serious ozone nonattainment areas.

Publication Date: 
Monday, March 1, 2021 - 4:00am

Air Plan Approval; Tennessee; Emissions Inventory and Nonattainment New Source Review Plan for Sullivan County SO2

The Environmental Protection Agency (EPA) is taking final action to approve portions of State Implementation Plan (SIP) revisions submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), on May 12, 2017.

Publication Date: 
Monday, March 1, 2021 - 4:00am

Air Plan Approval; Illinois; Removal of Variance for Illinois Power Holdings and AmerenEnergy Medina Valley Cogen Facilities

The Environmental Protection Agency (EPA) is approving a revision to the Illinois State Implementation Plan (SIP) submitted on January 23, 2020, by the Illinois Environmental Protection Agency (IEPA).

Publication Date: 
Monday, March 1, 2021 - 4:00am

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