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Air Plan Approval; Rhode Island; 2015 Ozone NAAQS Interstate Transport Requirements

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Rhode Island as meeting the Clean Air Act (CAA) requirement that each State's SIP contain adequate provisions to prohibit emissions that will significantly contribute to nonattainment or interfere with maintenance of the 2015 8-hour ozone national ambient air quality standards (NAAQS) in any other state. This action is being taken in accordance with the CAA.

Publication Date: 
Friday, December 10, 2021 - 4:00am

Air Plan Approval; North Carolina; Mecklenburg Air Quality Permit Rules Revisions

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision to the Mecklenburg County portion of the North Carolina SIP, hereinafter referred to as the Mecklenburg Local Implementation Plan (LIP). The revision was submitted by the State of North Carolina, through the North Carolina Division of Air Quality (NCDAQ), on behalf of Mecklenburg County Air Quality (MCAQ) via a letter dated April 24, 2020, and was received by EPA on June 19, 2020.

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

Air Plan Approval; North Carolina: Mecklenburg Ambient Air Quality Standards

The Environmental Protection Agency (EPA) is finalizing a State Implementation Plan (SIP) revision to the Mecklenburg County portion of the North Carolina SIP, hereinafter referred to as the Mecklenburg Local Implementation Plan (LIP). The revision was submitted by the State of North Carolina, through the North Carolina Division Air Quality (NCDAQ), on behalf of Mecklenburg County Air Quality via a letter dated April 24, 2020, and was received by EPA on June 19, 2020.

Publication Date: 
Wednesday, November 17, 2021 - 4:00am

Air Plan Approval; ID; West Silver Valley Redesignation to Attainment for the 2012 Annual PM2.5

The Environmental Protection Agency (EPA) is redesignating the West Silver Valley, Idaho nonattainment area to attainment for the 2012 annual fine particulate matter (PM<INF>2.5</INF>) National Ambient Air Quality Standard (NAAQS). EPA is also approving a maintenance plan for the area that demonstrates continued attainment of the 2012 PM<INF>2.5</INF> NAAQS through the year 2031, which Idaho submitted along with the redesignation request for inclusion into the Idaho State Implementation Plan (SIP).

Publication Date: 
Tuesday, November 16, 2021 - 4:00am

Air Plan Approval; AK; Eagle River Second 10-Year PM10

The Environmental Protection Agency (EPA) is approving the Eagle River, Alaska (AK) limited maintenance plan (LMP) submitted on November 10, 2020, by the Alaska Department of Environmental Conservation (ADEC or ``the State''). This plan addresses the second 10-year maintenance period after redesignation for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>).

Publication Date: 
Tuesday, November 9, 2021 - 4:00am

Approval and Promulgation of Air Quality Implementation Plans; Washington; Low Emission Vehicle Program

The Environmental Protection Agency (EPA) is approving a revision to the Washington State Implementation Plan (SIP) pertaining to adoption by reference of a Low Emission Vehicle (LEV) program by the State of Washington. The Clean Air Act (CAA) grants authority to the EPA to adopt Federal standards relating to the control of emissions from new motor vehicles, and generally preempts states from doing so.

Publication Date: 
Monday, November 8, 2021 - 4:00am

Approval and Promulgation of Implementation Plans; Colorado; Revisions to Regulation Number 7; Aerospace, Oil and Gas, and Other RACT Requirements for the 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area

Subject to certain exceptions, the Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions submitted by the State of Colorado on May 14, 2018, May 8, 2019, May 13, 2020 and March 22, 2021. The revisions are to Colorado Air Quality Control Commission (Commission or AQCC) Regulation Number 7 (Reg. 7). The revisions to Reg.

Publication Date: 
Friday, November 5, 2021 - 4:00am

Air Plan Approval; SC; Revisions to Definitions

The Environmental Protection Agency (EPA) is finalizing approval of a State Implementation Plan (SIP) revision submitted by the State of South Carolina, through the South Carolina Department of Health and Environmental Control (SC DHEC or Department), on April 24, 2020. The SIP revision updates the definition of ``Spec. Oil (Specification Oil)'' and makes minor updates to formatting and numbering. EPA is finalizing approval of these changes pursuant to the Clean Air Act (CAA or Act) and implementing federal regulations.

Publication Date: 
Thursday, October 28, 2021 - 4:00am

Air Plan Approval; South Carolina; 2018 General Assembly New Source Review Update

The Environmental Protection Agency (EPA) is finalizing approval of State Implementation Plan (SIP) revisions submitted by the State of South Carolina, through the South Carolina Department of Health and Environmental Control (SCDHEC or Department), on April 24, 2020. The SIP revisions update the State's Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR) regulations.

Publication Date: 
Thursday, October 28, 2021 - 4:00am

Air Plan Approval; Rhode Island; Infrastructure State Implementation Plan Requirements for the 2015 Ozone Standard

The Environmental Protection Agency (EPA) is approving most of a State Implementation Plan (SIP) revision submitted by the State of Rhode Island to address the infrastructure requirements of the Clean Air Act (CAA or Act) for the 2015 ozone National Ambient Air Quality Standards (NAAQS). This action does not address three requirements related to interstate transport.

Publication Date: 
Thursday, October 14, 2021 - 4:00am

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