Environmental Protection Agency June 25, 2021 – Federal Register Recent Federal Regulation Documents
Results 1 - 11 of 11
Approval and Promulgation of Implementation Plans; Montana; Butte PM10
The Environmental Protection Agency (EPA) is approving the Limited Maintenance Plan (LMP) submitted by the State of Montana to EPA on March 23, 2020, for the Butte Moderate nonattainment area (NAA) for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM10) and concurrently redesignate the NAA to attainment for the 24-hour PM10 National Ambient Air Quality Standard (NAAQS). In order to approve the LMP and redesignation, EPA determined that the Butte, MT NAA has attained the 1987 24-hour PM10 NAAQS of 150 [mu]g/m\3\. This determination is based upon monitored air quality data for the PM10 NAAQS during the years 2014 through 2018. The EPA is taking this action pursuant to the Clean Air Act (CAA).
Approval of Air Quality Implementation Plans; California; Eastern Kern; 8-Hour Ozone Nonattainment Area Requirements
The Environmental Protection Agency (EPA) is taking final action to approve, or conditionally approve, all or portions of three state implementation plan (SIP) revisions submitted by the State of California to meet Clean Air Act (CAA or ``the Act'') requirements for the 2008 8-hour ozone national ambient air quality standards (NAAQS or ``standards'') in the Eastern Kern, California (``Eastern Kern'') ozone nonattainment area. In this action, the EPA refers to these submittals collectively as the ``2017 Eastern Kern Ozone SIP.'' The 2017 Eastern Kern Ozone SIP addresses certain nonattainment area requirements for the 2008 ozone NAAQS, including the requirements for an emissions inventory, attainment demonstration, reasonable further progress, reasonably available control measures, contingency measures, among others; and establishes motor vehicle emissions budgets. The EPA is taking final action to approve the 2017 Eastern Kern Ozone SIP as meeting all the applicable ozone nonattainment area requirements except for the contingency measure requirement, for which the EPA is taking final action to conditionally approve, and the reasonably available control measures and attainment demonstration requirements, for which the EPA is deferring action at this time.
Availability of the IRIS Assessment Plan for Inhalation Exposure to Vanadium and Compounds; Extension of Public Comment Period
The Environmental Protection Agency (EPA) is extending the public comment period for the document titled, ``Availability of the IRIS Assessment Plan for Inhalation Exposure to Vanadium and Compounds.'' The original Federal Register document announcing the public comment period was published on May 28, 2021. The public science webinar will convene on July 14, 2021.
Request for Nominations of Candidates for the Clean Air Scientific Advisory Committee (CASAC) Particulate Matter (PM) Panel
The Environmental Protection Agency (EPA) Science Advisory Board (SAB) Staff Office requests public nominations of scientific experts for the CASAC PM Panel. This panel will provide advice through the chartered CASAC on updates to the science and policy assessments supporting the agency's reconsideration of the December 2020 decision to retain the PM National Ambient Air Quality Standards (NAAQS).
Air Plan Approval; Indiana; Monitoring Requirements
The Environmental Protection Agency (EPA) is approving, under the Clean Air Act (CAA), a revision to Indiana's State Implementation Plan (SIP) to address changes to its air emissions monitoring rules for Portland cement plants. Indiana revised its rules for Portland cement plants to update the monitoring of particulate matter (PM) emissions to allow an additional monitoring option. This additional monitoring option is consistent with EPA's recent revisions to Federal requirements for Portland cement plants. EPA proposed to approve this action on March 25, 2021 and received no comments.
Air Plan Approval; Iowa; State Implementation Plan and State Plans for Designated Facilities and Pollutants
The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Iowa State Implementation Plan (SIP) and is also approving revisions to the Iowa Operating Permit Program. The revisions include updating definitions, regulatory references, requiring facilities to submit electronic emissions inventory information under the state's Title V permitting program, and updating references for the most recent federally approved minimum specifications and quality assurance procedures for performance evaluations of continuous monitoring systems. EPA is also approving previous revisions to the Operating Permit Program that allow for electronic document submission that meet EPA's requirements. These revisions will not impact air quality and will ensure consistency between the state and Federally approved rules.
Air Quality Implementation Plan; California; Mendocino County Air Quality Management District; Stationary Source Permits
The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Mendocino County Air Quality Managment District (MCAQMD or ``District'') portion of the California State Implementation Plan (SIP). These revisions concern the District's prevention of significant deterioration (PSD) permitting program for new and modified stationary sources of air pollution. We are approving these local rules pursuant to requirements under part C of title I of the Clean Air Act as amended in 1990 (CAA or the ``Act'').
Air Plan Approval; Nebraska; Revisions to Title 129 of the Nebraska Administrative Code; Chapter 39 Visible Emissions From Diesel-Powered Motor Vehicles
The Environmental Protection Agency (EPA) is taking final action to approve a revision to the State Implementation Plan (SIP) for the State of Nebraska. This final action will amend the SIP to revise title 129 of the Nebraska Administrative Code by removing a portion of the SIP that addresses visible emissions from diesel-powered motor vehicles. Visible emissions from diesel-powered motor vehicles are addressed in the state statute. The revisions remove duplicative language that is redundant to the state statute. The revisions do not substantively change any existing statutory or regulatory requirement or impact the stringency of the SIP or air quality nor do they impact the State's ability to attain or maintain the National Ambient Air Quality Standards.
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District
The Environmental Protection Agency (EPA) is taking final action to approve a revision to the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD or ``the District'') portion of the California State Implementation Plan (SIP). This revision concerns emissions of oxides of nitrogen (NOX) and particulate matter (PM) from indirect sources associated with new development projects as well as NOX and PM emissions from certain transportation and transit development projects. We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or the Act).
Air Plan Approval; Illinois; Multi-Pollutant Standards Rule, Control of Emissions From Large Combustion Sources
The Environmental Protection Agency (EPA) is approving a revision to the Illinois State Implementation Plan (SIP) to amend requirements applicable to certain coal-fired electric generating units (EGUs) in the Illinois Administrative Code, also known as the Multi- Pollutant Standards (MPS) Rule. On January 23, 2020, the Illinois Environmental Protection Agency (IEPA) submitted a request to amend the provisions of the MPS Rule in the Illinois regional haze SIP. EPA is approving the revision because it will result in a significant decrease in emissions of Oxides of Nitrogen and Sulfur Dioxide, meets the applicable requirements of the Clean Air Act (CAA), and does not interfere with any applicable requirement concerning attainment and reasonable further progress.
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