🌫️EPA Proposes Redesignation of Detroit for Sulfur Dioxide Attainment
The Environmental Protection Agency (EPA) is proposing to find that the Detroit, Michigan area is attaining the 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS) and to act in accordance with a request from Michigan to redesignate the area to attainment for the 2010 SO<INF>2</INF> NAAQS, because the request meets the statutory requirements for redesignation under the Clean Air Act (CAA). EPA is also proposing to approve Michigan's maintenance plan for the Detroit area. Michigan submitted the request for approval of the Detroit nonattainment area's redesignation and maintenance plan on May 5, 2025. EPA approved Michigan's attainment plan for the Detroit area on May 19, 2025.
Learn More🏞️Financial Assurance Guidance for Good Samaritan Remediation Act
In the Good Samaritan Remediation of Abandoned Hardrock Mines Act of 2024, as part of the permit application, Good Samaritan applicants must provide financial assurance for every project. This document provides guidance in drafting and fulfilling the financial assurance components of Good Samaritan permits. This guidance defines relevant terms, discusses initial and modified cost estimates and financial assurance mechanisms, and describes how financial assurance may be accessed and released by the Environmental Protection Agency (EPA).
Learn More🐋Business Implications of Marine Mammal Incidental Take Authorization
In accordance with the regulations implementing the Marine Mammal Protection Act (MMPA), as amended, notification is hereby given that NMFS has issued a renewal incidental harassment authorization (IHA) to Phillips 66 to incidentally harass marine mammals incidental to Ferndale Refinery Dock Maintenance and Pile Replacement Project Activities in Ferndale, Washington.
Learn More🐋Renewal of IHA for Marine Mammal Takes Related to Naval Research
NMFS received a request from the Office of Naval Research (ONR) for the renewal of their currently active incidental harassment authorization (IHA) (hereinafter, the "initial IHA") to take marine mammals incidental to Arctic Research Activities (ARA) in the Beaufort Sea and eastern Chukchi Sea. ONR's activities are nearly identical to those covered in the current authorization. Pursuant to the Marine Mammal Protection Act (MMPA), prior to issuing the currently active IHA, NMFS requested comments on both the proposed IHA and the potential for renewing the initial authorization if certain requirements were satisfied. The renewal requirements have been satisfied, and NMFS is now providing an additional 15-day comment period to allow for any additional comments on the proposed renewal not previously provided during the initial 30-day comment period. The ONR's activities are considered military readiness activities pursuant to the MMPA, as amended by the National Defense Authorization Act for Fiscal Year 2004 (2004 NDAA).
Learn More🐾Agency Information Collection on Conservation Efforts Evaluation
In accordance with the Paperwork Reduction Act of 1995 (PRA), we, the U.S. Fish and Wildlife Service (Service), are proposing to renew a currently approved information collection without change.
Learn More⚠️North Dakota CCR Permit Program Approval and Comment Period Update
The Environmental Protection Agency (EPA or the Agency) issued a Federal Register document on May 16, 2025, proposing to approve the North Dakota Coal Combustion Residuals (CCR) partial permit program under the Resource Conservation and Recovery Act (RCRA). EPA is reopening the comment period to propose its intention to approve additional revisions to the North Dakota CCR permit program which, if finalized, will provide North Dakota with additional authority to implement a State CCR permit program. The Agency is reopening the comment period to accept comments on the proposed revisions and EPA's evaluation of the changes.
Learn More🌫️Air Plan Approval Corrections for Pennsylvania's Liberty-Clairton Area
The Environmental Protection Agency's regulation outlines corrections related to the air quality management for particulate matter standards in Pennsylvania's Liberty-Clairton Area. It addresses specific amendments in air plan approvals and emphasizes updated compliance requirements linked to emissions, highlighting the importance of accurate regulatory documentation for effective air quality management.
Learn More🌫️Wyoming EPA Approves Air Quality Regulation for Jim Bridger Units
The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Wyoming on December 30, 2022, and supplemented on August 31, 2023, and November 16, 2023, addressing regional haze for Jim Bridger Units 1 and 2 (Wyoming 2022 SIP revision). Wyoming's 2022 SIP revision provides oxides of nitrogen (NO<INF>X</INF>) emission and heat input limits that collectively allow for identical reasonable progress as part of the long term strategy during the first implementation period as the associated emission limits in the existing SIP for Jim Bridger Units 1 and 2. The EPA is also approving monthly and annual NO<INF>X</INF> and sulfur dioxide (SO<INF>2</INF>) emission limits for Jim Bridger Units 1 through 4 that were included in Wyoming's 2022 SIP revision. The EPA is taking this action pursuant to the Clean Air Act (CAA or the Act).
Learn More🏭EPA Proposes New Emissions Limits for Carmeuse Lime in Ohio
The Environmental Protection Agency (EPA) is proposing to approve the addition of Director's Final Findings and Orders (DFFOs) issued by the Ohio Environmental Protection Agency (Ohio EPA) to Carmeuse Lime, Inc. into the Ohio State Implementation Plan (SIP) for the 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standards (NAAQS). The DFFOs establish a new emissions limit for SO<INF>2</INF> emissions from the combined lime kiln stack that receives and emits SO<INF>2</INF> emissions from two rotary lime kilns at the Carmeuse Lime Maple Grove Facility in Seneca County, Ohio.
Learn More🌬️EPA Denies Petition on Young Gas Storage Company Operating Permit
The Environmental Protection Agency (EPA) Administrator signed an order dated May 30, 2025, denying a petition dated October 15, 2024, from Center for Biological Diversity. The petition requested that the EPA object to a Clean Air Act (CAA) operating permit issued by the Colorado Department of Public Health and Environment's Air Pollution Control Division (Division) authorizing Young Gas Storage Company, Ltd. (Young Gas Storage) to operate the Young Compressor Station in Morgan County, Colorado.
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