Nitrogen oxides

Air Plan Approval; TN; Montgomery County Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS

The Environmental Protection Agency (EPA) is taking final action to approve a state implementation plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), Air Pollution Control Division, on June 23, 2020. The SIP revision includes the 1997 8-hour ozone national ambient air quality standards (NAAQS) Limited Maintenance Plan (LMP) for the Montgomery County, Tennessee portion of the Clarksville- Hopkinsville Area (hereinafter referred to as the ``Montgomery County Area'' or ``Area'').

Publication Date: 
Thursday, December 2, 2021 - 4:00am

Air Plan Approval; Georgia; 20158-Hour Ozone Nonattainment New Source Review Permit Program Requirements

The Environmental Protection Agency (EPA) is proposing to approve a revision to the Georgia State Implementation Plan (SIP) submitted by the State of Georgia through the Georgia Environmental Protection Division (GA EPD) on July 2, 2020. EPA is proposing to approve Georgia's certification of existing Nonattainment New Source Review (NNSR) permitting regulations to meet the nonattainment planning requirements for the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS) for the Atlanta Area, comprised of the counties of Bartow, Clayton, Cobb, DeKalb, Fulton, Gwinnett, and Henry.

Publication Date: 
Thursday, December 2, 2021 - 4:00am

Air Plan Approval; Maine; Chapter 100 Definitions and Chapter 113 Growth Offset Regulations

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Maine. This revision amends the definition of ``Ozone Transport Region'' in the State's Chapter 100 Definitions Regulation and revises language in the State's Chapter 113 Growth Offset Regulation regarding applicability of Nonattainment New Source Review in areas that, at a future date, may not be within the Ozone Transport Region. The intended effect of this action is to approve the submittal into the Maine SIP.

Publication Date: 
Thursday, November 4, 2021 - 4:00am

Approval of Air Quality Implementation Plans; New York; Part 212, Process Operations

The Environmental Protection Agency (EPA) is approving a revision to the New York State Implementation Plan (SIP) concerning process operations. The effect of this revision is to streamline and update provisions, align those provisions with permitting regulations, and provide regulatory certainty for the regulated community.

Publication Date: 
Friday, October 1, 2021 - 4:00am

Implementation of the Revoked 1997 8-Hour Ozone National Ambient Air Quality Standards; Areas That Attained by the Attainment Date

The Environmental Protection Agency (EPA) is codifying its findings that nine areas in four states attained the revoked 1997 8- hour ozone National Ambient Air Quality Standards (herein referred to as the revoked 1997 ozone NAAQS) by the applicable attainment dates.

Publication Date: 
Thursday, July 29, 2021 - 4:00am

Air Plan Approval; Tennessee; Knoxville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS

The Environmental Protection Agency (EPA) is taking final action to approve a state implementation plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), Air Pollution Control Division, via a letter dated January 23, 2020. The SIP revision includes the 1997 8-hour ozone national ambient air quality standards (NAAQS) Limited Maintenance Plan (LMP) for the Knoxville, Tennessee Area (hereinafter referred to as the ``Knoxville Area'' or ``Area'').

Publication Date: 
Friday, July 23, 2021 - 4:00am

Approval of Air Quality Implementation Plans; New York; Infrastructure Requirements for the 2015 Ozone, National Air Quality Standards

The Environmental Protection Agency (EPA) is proposing to approve elements of New York's State Implementation Plan (SIP) revisions, submitted to demonstrate that the State meets the requirements of section 110(a)(1) and (2) of the Clean Air Act (CAA) for the 2015 Ozone National Ambient Air Quality Standards (NAAQS). Section 110(a) of the CAA requires that each state adopt and submit for approval into the SIP a plan for the implementation, maintenance and enforcement of each NAAQS promulgated by the EPA.

Publication Date: 
Thursday, July 1, 2021 - 4:00am

Air Plan Approval; TN; Knoxville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS

The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), Air Pollution Control Division, via a letter dated January 23, 2020. The SIP revision includes the 1997 8-hour ozone national ambient air quality standards (NAAQS) Limited Maintenance Plan (LMP) for the Knoxville, Tennessee Area (hereinafter referred to as the ``Knoxville Area'' or ``Area'').

Publication Date: 
Friday, June 11, 2021 - 4:00am

Clean Air Act New Source Review Operating Permit Program; Notice of Transfer of Permits to Wyoming Department of Environmental Quality

The EPA is proposing to grant Wyoming Department of Environmental Quality's (WDEQ) August 21, 2020 request to transfer to the State administrative authority over two federal permits that were issued by the EPA on June 26, 1973 under the federal new source review (NSR) permitting program. In addition, the EPA is proposing to agree with WDEQ's analysis in its August 21, 2020 letter demonstrating that the current Wyoming regulations still meet the requirements of the federal NSR permitting program. This action is proposing to transfer the 1973 federally issued permits to Wyoming.

Publication Date: 
Friday, May 28, 2021 - 4:00am

Revised Cross-State Air Pollution Rule Update for the 2008 Ozone NAAQS

The U.S. Environmental Protection Agency (EPA) is taking this action to address interstate transport of ozone pollution under the ``good neighbor provision'' of the Clean Air Act (CAA). This final action is taken in response to the United States Court of Appeals for the District of Columbia Circuit's (D.C. Circuit) remand of the Cross- State Air Pollution Rule (CSAPR) Update in Wisconsin v. EPA on September 13, 2019.

Publication Date: 
Friday, April 30, 2021 - 4:00am

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