Air pollution control

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

Air Plan Approval; Pennsylvania; Reasonably Available Control Technology (RACT) Determinations for Case-by-Case Sources Under the 2008 8-Hour Ozone National Ambient Air Quality Standards

The Environmental Protection Agency (EPA) is approving multiple state implementation plan (SIP) revisions submitted by the Commonwealth of Pennsylvania. These revisions were submitted by the Pennsylvania Department of Environmental Protection (PADEP) to establish and require reasonably available control technology (RACT) for individual major sources of volatile organic compounds (VOC) and nitrogen oxides (NO<INF>X</INF>) pursuant to the Commonwealth of Pennsylvania's conditionally approved RACT regulations.

Publication Date: 
Monday, November 1, 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; 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; Nevada; Revisions to Clark County Ozone Maintenance Plan

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the State of Nevada's state implementation plan (SIP) for Clark County. The revision consists of an update to certain elements of the maintenance plan for the Clark County air quality planning area for the 1997 8-hour ozone national ambient air quality standards (NAAQS or ``standards''), including certain emissions inventories and motor vehicle emissions budgets.

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

Designation of Areas for Air Quality Planning Purposes; California; Eastern Kern, Sacramento Metro, and Western Nevada 2015 Ozone Nonattainment Areas; Reclassification to Serious

Under the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is granting requests by the California Air Resources Board (CARB or ``State'') to reclassify three nonattainment areas in California from ``Moderate'' to ``Serious'' for the 2015 ozone national ambient air quality standards (NAAQS). These three areas are herein referred to as the Eastern Kern, Sacramento Metro, and Western Nevada nonattainment areas.

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; Nevada, Las Vegas Valley; Second 10-Year Carbon Monoxide Limited Maintenance Plan

The Environmental Protection Agency (EPA) is taking final action to approve a Nevada State Implementation Plan (SIP) revision submitted by the Nevada Department of Environmental Protection (NDEP). On September 27, 2010, the EPA redesignated the Las Vegas Valley area from nonattainment to attainment for the carbon monoxide (CO) national ambient air quality standard (NAAQS) and approved the State's CO maintenance plan ensuring the area would maintain the NAAQS for ten years through 2020.

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

Air Plan Limited Approval and Limited Disapproval; California; Air Resources Board; Volatile Organic Compounds

The Environmental Protection Agency (EPA) is proposing action on a revision to the California Air Resources Board (CARB) portion of the California State Implementation Plan (SIP). This revision concerns emissions of volatile organic compounds (VOCs) from vapor recovery systems of gasoline cargo tanks.

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

Clean Air Plans; Base Year Emissions Inventories for the 2015 Ozone Standards; Arizona; Phoenix-Mesa and Yuma Nonattainment Areas

The Environmental Protection Agency (EPA) is proposing to approve, under the Clean Air Act (CAA), revisions to the Arizona State Implementation Plan (SIP) concerning the base year emissions inventory requirements for the Phoenix-Mesa ozone nonattainment area (``Phoenix- Mesa'') and Yuma ozone nonattainment area (``Yuma'') for the 2015 ozone national ambient air quality standards (NAAQS or ``standard'').

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

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