🌫️EPA Approves Connecticut's Ozone Emissions Inventory Revision
The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions submitted by the State of Connecticut that relate to the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS). The SIP revisions are for the Greater Connecticut and the Connecticut portion of the New York-Northern New Jersey-Long Island, NY-NJ-CT ozone nonattainment areas. This action will approve submittals which include the 2017 base year emissions inventories for these two nonattainment areas for the 2015 Ozone National Ambient Air Quality Standard. This action is being taken under the Clean Air Act (CAA).
Learn More🌫️EPA Proposes New PM2.5 Air Quality Standards Affecting Businesses
The Environmental Protection Agency (EPA) is proposing to determine that the San Joaquin Valley, California fine particulate matter (PM<INF>2.5</INF>) nonattainment area attained the 1997 annual PM<INF>2.5</INF> national ambient air quality standards (NAAQS) by the December 31, 2024 applicable attainment date. This proposed determination is based on ambient air quality monitoring data from 2022 through 2024. We are also proposing to make a clean data determination (CDD) based on the 2022 through 2024 data and our evaluation of preliminary air quality monitoring data from 2025. We are taking comments on this proposal and plan to follow with a final action.
Learn More🌊General Permit for Ocean Disposal of Marine Mammal Carcasses
The Environmental Protection Agency (EPA) is re-issuing a general permit under the Marine Protection, Research and Sanctuaries Act (MPRSA) to authorize the transport of marine mammal and sea turtle carcasses from the United States and disposal of marine mammal and sea turtle carcasses in ocean waters. Permit re-issuance is necessary because the most recent permit expired on January 4, 2024. The EPA has not made substantive changes to the content of the recently expired general permit, though it has revised the scope and eligibility provisions, and general permittees will be able to resume permitted deposition of marine mammal carcasses in ocean waters pursuant to the re-issued permit terms.
Learn More🌫️EPA Proposes Approval of Guam's Sulfur Dioxide Emissions Plan
The Environmental Protection Agency (EPA) is proposing to approve a revision to Guam's State Implementation Plan (SIP) under section 110(k)(3) of the Clean Air Act (CAA or "the Act"). This revision concerns the base year emissions inventory for the Piti- Cabras, Guam sulfur dioxide (SO<INF>2</INF>) nonattainment area ("Piti-Cabras area" or NAA) for the 2010 1-hour SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS, "standard," or "2010 SO<INF>2</INF> NAAQS"). We are taking comments on a proposed approval of this revision and are simultaneously publishing a final action approving this revision in a direct final rule.
Learn More🌬️Proposed Revisions to Minnesota Air Quality Regulations
The Environmental Protection Agency (EPA) is proposing to approve a revision to the Minnesota State Implementation Plan (SIP) which updates Minnesota's air program rules. The Minnesota Pollution Control Agency (MPCA) submitted the request to EPA on October 1, 2021. The revision to Minnesota's air quality rules will reflect changes that have occurred to the State air quality rules since July 2020. EPA is proposing to approve MPCA's submittal, which will result in consistent requirements of rules at both the State and Federal level.
Learn More🌊Army Corps of Engineers NEPA Procedures Revision Overview
The Army is issuing this document to correct the interim final rule published on July 3, 2025. That document inadvertently provided inaccurate instruction with regard to paragraph (a) of Sec. 325.2. This document corrects the interim final rule.
Learn More🧪Notice of Meeting
The National Institute of Environmental Health Sciences announces a virtual meeting of the Scientific Advisory Committee on Alternative Toxicological Methods. This advisory group, which includes industry representatives, will discuss key topics concerning alternative methods in toxicological evaluation, and invites public participation for comments during the meeting. Information about registration and public comment submissions is detailed.
Learn More🌊NMFS Issues Incidental Harassment Authorization for Ketchikan Project
In accordance with regulations implementing the Marine Mammal Protection Act (MMPA) as amended, notification is hereby given that NMFS has issued an incidental harassment authorization (IHA) to the City of Ketchikan (COK) for authorization to take marine mammals incidental to the Berth III Mooring Dolphins Project in the Port of Ketchikan in the Tongass Narrows, Alaska.
Learn More🐬Regulations on Marine Mammal Protection Related to Navy Sonar Activities
NMFS has received a request from the U.S. Department of the Navy (Navy) for authorization to take marine mammals incidental to training and testing activities using Surveillance Towed Array Sensor System (SURTASS) Low Frequency Active (LFA) sonar systems in the western and central North Pacific and eastern Indian oceans over the course of 7 years from August 2026 through August 2033. Pursuant to regulations implementing the Marine Mammal Protection Act (MMPA), NMFS is announcing receipt of the Navy's request for the development and implementation of regulations governing the incidental taking of marine mammals and issuance of a 7-year Letter of Authorization (LOA). NMFS invites the public to provide information, suggestions, and comments on the Navy's application and request.
Learn More🔬EPA Notice on New Chemicals and Compliance Requirements for Businesses
This document announces the Agency's receipt of new chemical submissions under the Toxic Substances Control Act (TSCA), including information about the receipt of a Premanufacture notice (PMN), Significant New Use Notice (SNUN), Microbial Commercial Activity Notice (MCAN), and an amendment to a previously submitted notice; test information; a biotechnology exemption application; an application for a test marketing exemption (TME); and a notice of commencement of manufacture (defined by statute to include import) (NOC) for a new chemical substance. This document also provides a periodic status report on the new chemical substances that are currently under EPA review or have recently concluded review. EPA is hereby providing notice of receipt of this information, as required by TSCA, and an opportunity to comment. This document covers the period from 4/1/2025 to 4/30/2025.
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