Wilderness areas

Air Plan Approval; Illinois; Redesignation of the Illinois Portion of the Chicago-Naperville, Illinois-Indiana-Wisconsin Area to Attainment of the 2008 Ozone Standard

The Environmental Protection Agency (EPA) finds that the Illinois portion of the Chicago-Naperville, IL-IN-WI area (Chicago area) is attaining the 2008 ozone National Ambient Air Quality Standard (NAAQS or standard) and is acting in accordance with a January 25, 2022, request from Illinois to redesignate the Illinois portion of the Chicago area to attainment for the 2008 ozone NAAQS because the request meets the statutory requirements for redesignation under the Clean Air Act (CAA).

Publication Date: 
Friday, May 20, 2022 - 4:00am

Air Plan Approval; Wisconsin; Redesignation of the Revised Door County (Partial) Area to Attainment of the 2015 Ozone Standard

The Environmental Protection Agency (EPA) finds that the revised Door County (partial) nonattainment area in Wisconsin is attaining the 2015 ozone National Ambient Air Quality Standard (NAAQS) and is approving, in accordance with a request from the Wisconsin Department of Natural Resources (WDNR), the redesignation of the area to attainment for the 2015 ozone NAAQS, because the request meets the statutory requirements for redesignation under the Clean Air Act (CAA). WDNR submitted this request on January 5, 2022.

Publication Date: 
Friday, April 29, 2022 - 4:00am

Air Plan Approval; Wisconsin; Redesignation of the Wisconsin Portion of the Chicago-Naperville, Illinois-Indiana-Wisconsin Area to Attainment of the 2008 Ozone Standard

The Environmental Protection Agency (EPA) finds that the Chicago-Naperville, IL-IN-WI area (Chicago area) is attaining the 2008 ozone National Ambient Air Quality Standard (NAAQS or standard) and, in response to a request from the Wisconsin Department of Natural Resources (Wisconsin or the State), is redesignating the Wisconsin portion of the area to attainment for the 2008 ozone NAAQS, because the State has met the statutory requirements for redesignation under the Clean Air Act (CAA).

Publication Date: 
Monday, April 11, 2022 - 4:00am

Air Plan Approval; Wisconsin; Redesignation of the Manitowoc, Wisconsin, Area to Attainment of the 2015 Ozone Standard

The Environmental Protection Agency (EPA) finds that the Manitowoc, Wisconsin, area is attaining the 2015 ozone National Ambient Air Quality Standard (NAAQS or standard) and is approving, in accordance with a request from the Wisconsin Department of Natural Resources (WDNR), the redesignation of the area to attainment for the 2015 ozone NAAQS, because the request meets the statutory requirements for redesignation under the Clean Air Act (CAA).

Publication Date: 
Thursday, March 31, 2022 - 4:00am

Air Plan Approval; Montana; Thompson Falls PM10

The Environmental Protection Agency (EPA) is proposing to fully approve the Limited Maintenance Plan (LMP) submitted by the State of Montana to EPA on November 4, 2021, for the Thompson Falls Moderate nonattainment area (NAA) for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>) and concurrently redesignate the NAA to attainment for the 24-hour PM<INF>10</INF> National Ambient Air Quality Standard (NAAQS).

Publication Date: 
Tuesday, March 8, 2022 - 4:00am

Air Plan Approval; Montana; Whitefish PM10

The Environmental Protection Agency (EPA) is proposing to fully approve the Limited Maintenance Plan (LMP) submitted by the State of Montana to EPA on August 6, 2021, for the Whitefish Moderate nonattainment area (NAA) for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>) and concurrently redesignate the NAA to attainment for the 24-hour PM<INF>10</INF> National Ambient Air Quality Standard (NAAQS).

Publication Date: 
Tuesday, March 8, 2022 - 4:00am

Air Plan Approval; Wisconsin; Redesignation of the Rhinelander Sulfur Dioxide Nonattainment Area

The Environmental Protection Agency (EPA) is redesignating the Rhinelander nonattainment area, which consists of a portion of Oneida County (Crescent Township, Newbold Township, Pine Lake Township, Pelican Township, and the City of Rhinelander), to attainment for the 2010 primary, health-based 1-hour sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS). EPA is also approving Wisconsin's SO<INF>2</INF> maintenance plan for the Rhinelander area.

Publication Date: 
Wednesday, January 12, 2022 - 4:00am

Additional Revised Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards: El Paso County, Texas and Weld County, Colorado

This final action revises the initial air quality designations for two counties associated with two nonattainment areas for the 2015 primary and secondary National Ambient Air Quality Standards (NAAQS) for ozone. In a July 10, 2020, decision, the District of Columbia Circuit Court remanded to the Environmental Protection Agency (EPA or Agency), but did not vacate, the April 30, 2018, designations for 16 counties associated with nine nonattainment areas located in seven states.

Publication Date: 
Tuesday, November 30, 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

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

Pages