Intergovernmental relations

Air Plan Revision; Limited Approval and Limited Disapproval; California; Yolo-Solano Air Quality Management District

The Environmental Protection Agency (EPA) is finalizing the limited approval and limited disapproval of a revision to the Yolo- Solano Air Quality Management District (YSAQMD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of volatile organic compounds (VOCs) from solvent cleaning and degreasing operations. Under the authority of the Clean Air Act (CAA or the Act), this action simultaneously approves a local rule that regulates these emission sources and directs California to correct rule deficiencies.

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

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

The Environmental Protection Agency (EPA) is proposing to approve 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, July 29, 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; California; Placer County Air Pollution Control District; Open Burning Rules

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Placer County Air Pollution Control District (PCAPCD) portion of the California State Implementation Plan (SIP). These revisions concern emissions of oxides of nitrogen (NO<INF>X</INF>) and particulate matter (PM) from open burning. We are approving local rules that regulate these emission sources under the Clean Air Act (CAA or the Act).

Publication Date: 
Wednesday, July 28, 2021 - 4:00am

Air Plan Approval; Iowa; Polk County; State Implementation Plan

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Iowa State Implementation Plan (SIP) to include recent changes to the Polk County Board of Health Rules and Regulations in addition to revisions from past submittals. The proposed revisions update definitions and references to the effective dates of Federal rules approved into the State's SIP, prohibit burning of demolished buildings, update references to methods and procedures for performance test/stack test and continuous monitoring systems, and revise permitting exemptions.

Publication Date: 
Wednesday, July 28, 2021 - 4:00am

Air Plan Approval; California; Mojave Desert Air Quality Management District

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Mojave Desert Air Quality Management District (MDAQMD or ``District'') portion of the State Implementation Plan (SIP). This revision concerns emissions of volatile organic compounds (VOCs) from wood products coating operations. We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or the Act).

Publication Date: 
Wednesday, July 28, 2021 - 4:00am

National Oil and Hazardous Substances Pollution Contingency Plan; Monitoring Requirements for Use of Dispersants and Other Chemicals

The Environmental Protection Agency (EPA or the Agency) is amending the requirements in Subpart J of the National Oil and Hazardous Substances Pollution Contingency Plan (NCP) that govern the use of dispersants, other chemicals and other spill mitigating substances when responding to oil discharges into waters of the United States.

Publication Date: 
Tuesday, July 27, 2021 - 4:00am

Air Plan Approval; Missouri; Open Burning; Withdrawal

The Environmental Protection Agency (EPA) is withdrawing its proposed rule to approve Missouri's revisions to the state's open burning rule, as published in the Federal Register on January 13, 2020. By a letter to the EPA dated May 26, 2021, Missouri withdrew its request for approval of revisions to this rule in the state implementation plan (SIP).

Publication Date: 
Monday, July 26, 2021 - 4:00am

Finding of Failure To Submit a State Implementation Plan To Meet the 1987 24-Hour PM10

The Environmental Protection Agency (EPA) is making a finding that Arizona has not submitted a required revision to the Arizona State Implementation Plan (SIP) for the West Pinal County nonattainment area addressing Clean Air Act (CAA) requirements for a Moderate area attainment plan, related rules, and other analyses needed to attain the 1987 24-hour particulate matter (PM<INF>10</INF>) National Ambient Air Quality Standard (NAAQS) by December 31, 2018.

Publication Date: 
Friday, July 23, 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

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