Lead

Air Plan Approval; WA; Update to Materials Incorporated by Reference

The Environmental Protection Agency (EPA) is updating the regulatory materials incorporated by reference into the Washington State Implementation Plan (SIP). The regulations addressed in this action were previously submitted by the Washington Department of Ecology and approved by the EPA in prior rulemakings. This action is an administrative change that updates the SIP materials available for public inspection at the National Archives and Records Administration and the EPA Regional Office.

Publication Date: 
Tuesday, August 3, 2021 - 4:00am

Approval and Promulgation of Implementation Plans; North Dakota; Revisions To Permitting Regulations Unrelated to Regional Haze

In accordance with section 110 of the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is proposing to approve State Implementation Plan (SIP) revisions submitted by North Dakota on August 3, 2020. The revisions contain amendments to the State's Air Pollution Control Regulations and to the State's Legal Authority.

Publication Date: 
Monday, August 2, 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

New Source Review Regulations; Correction

The Environmental Protection Agency (EPA) is amending several New Source Review (NSR) regulations by making the following types of changes: Correcting typographical and grammatical errors, removing court vacated rule language, removing or updating outdated or incorrect cross references, conforming certain provisions to changes contained in the 1990 Clean Air Act (CAA or Act) Amendments, and removing certain outdated grandfathering or transitional exemptions.

Publication Date: 
Monday, July 19, 2021 - 4:00am

Approval and Promulgation of Implementation Plans; Utah; 2017 Base Year Inventories for the 2015 8-Hour Ozone National Ambient Air Quality Standard for the Uinta Basin, Northern Wasatch Front and Southern Wasatch Front Nonattainment Areas

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Utah. The revision fulfills the base year inventory requirement for the 2015 8- hour ozone national ambient air quality standard (NAAQS) for the Uinta Basin, Northern Wasatch Front, and Southern Wasatch Front nonattainment areas (NAAs). Utah submitted the base year emissions inventories to meet, in part, the nonattainment requirements for Marginal ozone NAAs under the 2015 8-hour ozone NAAQS.

Publication Date: 
Tuesday, July 6, 2021 - 4:00am

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 (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: 
Friday, June 25, 2021 - 4:00am

Approval and Promulgation of Implementation Plans; Colorado; Revisions to Regulation Number 7; Aerospace, Oil and Gas, and Other RACT Requirements for 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area

The Environmental Protection Agency (EPA) is proposing approval of State Implementation Plan (SIP) revisions submitted by the State of Colorado on May 14, 2018, May 8, 2019, and May 13, 2020. The revisions are to Colorado Air Quality Control Commission (Commission or AQCC) Regulation Number 7 (Reg. 7). The revisions to Reg.

Publication Date: 
Tuesday, June 22, 2021 - 4:00am

Air Plan Approval; Ohio; Lead

The Environmental Protection Agency (EPA) is approving, under the Clean Air Act (CAA), revisions to lead emissions rules in the Ohio Administrative Code (OAC). EPA is approving the removal of four lead emissions rules from the Ohio State Implementation Plan (SIP). Three of the lead emissions rules apply to Master Metals, Inc., a secondary lead smelter that has permanently shut down. The remaining lead emissions rule duplicates a provision in another OAC chapter that is approved into the Ohio SIP. EPA proposed to approve this action on March 12, 2021 and received no adverse comments.

Publication Date: 
Wednesday, June 16, 2021 - 4:00am

Approval and Promulgation of Implementation Plans; North Dakota; Revisions to Air Pollution Control Rules; Regional Haze

The Environmental Protection Agency (EPA) is finalizing approval on a revision to the North Dakota State Implementation Plan (SIP) submitted by the State of North Dakota on November 11, 2016 and supplemented on March 15, 2021, that addresses amendments to the regional haze provisions of the North Dakota Administrative Code (NDAC). These revisions were submitted to remove certain regional haze requirements related to Best Available Retrofit Technology (BART) in the first planning period.

Publication Date: 
Tuesday, June 8, 2021 - 4:00am

Air Plan Approval; Florida; Maintenance Plan Update for the Hillsborough County Lead Area

The Environmental Protection Agency (EPA) is finalizing approval of a State Implementation Plan (SIP) revision submitted by the State of Florida, through the Florida Department of Environmental Protection (FDEP), on January 23, 2020. The SIP revision updates the attainment emissions inventory and the maintenance demonstration, including the projected future emissions inventories, in the maintenance plan for the Hillsborough County lead maintenance area (hereinafter referred to as the ``Hillsborough Area'' or ``Area'') for the 2008 lead national ambient air quality standards (NAAQS).

Publication Date: 
Friday, June 4, 2021 - 4:00am

Pages