🌫️EPA Approves South Dakota’s Regional Haze State Implementation Plan
The Environmental Protection Agency (EPA) is approving a regional haze state implementation plan (SIP) revision submitted by the State of South Dakota on July 29, 2022 (South Dakota's 2022 SIP submission), as satisfying applicable requirements under the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. The EPA is taking this action pursuant to CAA.
Learn More🌬️Proposed Revisions to Arkansas Air Quality Implementation Plan
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve revisions to the Arkansas State Implementation Plan (SIP) submitted to the EPA on February 4, 2025. The revisions address the codification of the Arkansas Pollution Control and Ecology Commission (APC & EC) Rule 19 and Regulations 9, 26, and 31 into the Code of Arkansas Rules (CAR). The revisions are non-substantive and administrative in nature, and do not add or relax any provisions in the approved SIP.
Learn More🌍EPA Proposes Approval of Ohio's Ozone Regulation Revisions
The Environmental Protection Agency (EPA) is proposing to approve revisions to Ohio Administrative Code (OAC) Chapters 3745-21 and 3745-110 into the Ohio State Implementation Plan (SIP). The Ohio Environmental Protection Agency ("Ohio" or "Ohio EPA") submitted these revisions on March 30, 2022, and supplemented the submittal on February 1, 2023, and August 28, 2023. EPA is proposing to approve parts of OAC Chapters 3745-21 and 3745-110 as satisfying some of the Moderate Volatile Organic Compound (VOC) Reasonably Available Control Technology (RACT) and Nitrogen Oxide (NO<INF>x</INF>) RACT requirements for the Cleveland, OH nonattainment area (Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit counties) under the 2015 ozone National Ambient Air Quality Standard ("NAAQS" or "standard"). Finally, EPA is proposing to approve OAC rule 3745-15-03, submitted by Ohio on February 9, 2023, and supplemented on December 1, 2023, and December 30, 2024.
Learn More🚗Proposed Rule for Pennsylvania Vehicle Emission Standards
The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision submitted by the Commonwealth of Pennsylvania. This SIP revision addresses Clean Air Act (CAA) requirements for the enactment of a Basic vehicle emissions inspection and maintenance (I/M) program for the five counties comprising the Pennsylvania portion of the Philadelphia-Wilmington- Atlantic City, PA-NJ-MD-DE Moderate nonattainment area (Philadelphia nonattainment area) for the 2015 8-hour ozone national ambient air quality standards (NAAQS).
Learn More🌬️EPA Proposes Revision to Alabama Air Permit Regulations
The Environmental Protection Agency (EPA) is proposing to approve a revision to the Alabama State Implementation Plan (SIP) submitted by the Alabama Department of Environmental Management (ADEM) on December 20, 2023. The proposed SIP revision consists of minor changes to certain air permit regulations that have been revised by the State agency since EPA last approved those provisions. EPA is proposing to approve the SIP revision pursuant to the Clean Air Act (CAA or Act).
Learn More🌿EPA Updates Washington State Implementation Plan for Air Quality
The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the Washington State Implementation Plan (SIP). The regulations affected by this update have been previously submitted by Washington and approved by the EPA. This update affects the materials that are available for public inspection at the National Archives and Records Administration (NARA) and the EPA Regional Office.
Learn More🌍Proposed Rule for Arizona's Air Quality on Dry Cleaning Solvents
The Environmental Protection Agency (EPA) is proposing to approve a revision to the Maricopa County Air Quality Department (MCAQD) portion of the Arizona State Implementation Plan (SIP). This revision clarifies definitions used in a rule that limits volatile organic compounds (VOCs) emissions from petroleum solvents used in dry cleaning. We are proposing to approve the rule revisions under the Clean Air Act (CAA or "Act"). We are taking comments on this proposal and plan to follow with a final action.
Learn More🌫️Tennessee's Regional Haze Plan
The Environmental Protection Agency (EPA) is proposing to approve a regional haze State Implementation Plan (SIP) revision submitted by the Tennessee Department of Environmental Conservation (TDEC), dated February 23, 2022, as satisfying the applicable requirements under the Clean Air Act (CAA or Act) and EPA's Regional Haze Rule (RHR) for the program's second planning period. Tennessee's SIP submission addresses the requirement that states must periodically revise their long-term strategies for making reasonable progress toward the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. The SIP submission also addresses other applicable requirements for the second planning period of the regional haze program. EPA is proposing this action pursuant to sections 110 and 169A of the Act.
Learn More🌬️North Carolina Air Quality Regulation
The Environmental Protection Agency (EPA) is proposing to approve separate but related State Implementation Plan (SIP) revisions submitted by the North Carolina Division of Air Quality (NCDAQ). First, EPA is proposing to approve a SIP revision submitted by NCDAQ on behalf of the State of North Carolina on October 27, 2023, to remove certain exemptions available at the discretion of a State official for emissions exceeding otherwise applicable SIP emission limitations. Second, EPA is proposing to approve a SIP revision submitted by NCDAQ on behalf of Mecklenburg County Air Quality (MCAQ or Mecklenburg County) on October 25, 2023, to remove a parallel local exemption analogous to the State's for emissions exceeding otherwise applicable SIP emission limitations. In addition, EPA is proposing to approve minor and administrative changes to certain regulatory provisions that have been revised by the State and Mecklenburg County since EPA's last approval of those provisions. EPA is proposing to approve these SIP revisions pursuant to the Clean Air Act (CAA or Act).
Learn More⛽EPA Proposes Changes to Rhode Island's Air Regulations on Vapor Recovery
The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of Rhode Island. This revision removes requirements for Stage II vapor recovery equipment at gasoline dispensing facilities (GDFs). This revision also includes minor updates to Stage I vapor recovery regulatory amendments. The intended effect of this action is to propose approval of Rhode Island's revised vapor recovery regulations. This action is being taken under the Clean Air Act.
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