Sulfur oxides

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

Approval and Promulgation of State Plans for Designated Facilities and Pollutants: Massachusetts; 111(d)/129 Revised State Plan for Large Municipal Waste Combustors

The Environmental Protection Agency (EPA) is approving the Clean Air Act State Plan revisions for Large Municipal Waste Combustors (MWCs) submitted by the Massachusetts Department of Environmental Protection (MassDEP) on December 18, 2018. The revised State Plan is in response to amended emission guidelines (EGs) for Large MWCs promulgated on May 10, 2006. MassDEP's State Plan is for implementing and enforcing provisions at least as protective as the EGs applicable to existing Large MWCs. This action is being taken under the Clean Air Act.

Publication Date: 
Friday, October 29, 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; 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; California; South Coast Air Quality Management District; Stationary Source Permits

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the South Coast Air Quality Management District (SCAQMD or ``the District'') portion of the California State Implementation Plan (SIP). We are finalizing approval of a revision governing issuance of permits for stationary sources, including review and permitting of major sources and major modifications under part D of title I of the Clean Air Act (CAA or ``the Act''). Specifically, the revision pertains to SCAQMD Rule 1325 ``Federal PM<INF>2.5</INF> New Source Review Program.''

Publication Date: 
Friday, October 22, 2021 - 4:00am

Air Plan Approval; Wisconsin; Attainment Plan for the Rhinelander SO2

The Environmental Protection Agency (EPA) is approving the State Implementation Plan (SIP) revision submitted by Wisconsin on March 29, 2021, which amends a SIP submission previously submitted to EPA on January 22, 2016, and supplemented on July 18, 2016 and November 29, 2016, for attaining the 1-hour sulfur dioxide (SO<INF>2</INF>) primary national ambient air quality standard (NAAQS) for the Rhinelander SO<INF>2</INF> nonattainment area.

Publication Date: 
Friday, October 22, 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

Air Plan Approval; MS; BART SIP and Regional Haze Progress Report

The Environmental Protection Agency (EPA) is approving two Mississippi State Implementation Plan (SIP) revisions from the Mississippi Department of Environmental Quality (MDEQ) dated October 4, 2018, and August 13, 2020. The October 4, 2018, SIP revision contains the State's first periodic report describing progress towards reasonable progress goals (RPGs) established for regional haze and contains the associated determination that the State's regional haze SIP is adequate to meet these RPGs for the first implementation period (Progress Report).

Publication Date: 
Wednesday, October 6, 2021 - 4:00am

Air Plan Approval; Illinois; National Ambient Air Quality Standards Updates; Reference and Equivalent Methods Updates

The Environmental Protection Agency (EPA) is approving several revisions to the Illinois State Implementation Plan (SIP). First, EPA is approving amendments to the Illinois SIP that incorporate by reference EPA's current national ambient air quality standard for ozone, particulate matter, lead, nitrogen dioxide, and sulfur oxides. Second, EPA is approving revisions to the Illinois SIP that incorporate by reference current Federal Reference Methods for monitoring carbon monoxide, ozone, particulate matter, lead, nitrogen dioxide, and sulfur oxides.

Publication Date: 
Monday, October 4, 2021 - 4:00am

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