Air and Radiation
This page shows all of the pages at www.epa.gov that are tagged with Air and Radiation.
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What They Are Saying: Leaders and Americans Across the Country Applaud the Single Largest Act of Deregulation in U.S. History
On Thursday, February 12, 2026, alongside President Trump in the White House’s Roosevelt Room, U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin announced the single largest deregulatory action in U.S. history.
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President Trump and Administrator Zeldin Deliver Single Largest Deregulatory Action in U.S. History
Trump Admin Eliminates Obama-Era Endangerment Finding, off-cycle credits, start-stop feature
Alongside the President, EPA Administrator Lee Zeldin announced the single largest deregulatory action in U.S. history.
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Administrator Zeldin Eliminates Off-Cycle Credit for Almost Universally Hated Start-Stop Feature in Vehicles
EPA Administrator Lee Zeldin eliminated the off-cycle credit that was used to implement the almost universally hated start-stop feature in American vehicles.
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ICYMI: Administrator Zeldin Takes Additional Measures to Address Diesel Exhaust Fluid (DEF) Issues for American Farmers and Truckers
Administrator Lee Zeldin took another step to further the Trump EPA’s work to address widespread concerns from farmers, truckers, motor coach operators, and other diesel equipment operators regarding Diesel Exhaust Fluid (DEF) system failures.
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ICYMI: EPA Sets Record Straight — Americans Have the Right to Repair Their Farm or Other Nonroad Diesel Equipment
EPA Administrator Lee Zeldin set the record straight with guidance reaffirming American farmers and equipment owners’ right to repair the farm and other nonroad diesel equipment they own.
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EPA Advances Farmers’ Right to Repair Their Own Equipment, Saving Repair Costs and Productivity
Today, the U.S. Environmental Protection Agency (EPA) advanced American farmers and equipment owners’ lawful right to repair their farm and other nonroad diesel equipment.
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Administrator Zeldin Takes Additional Measures to Address Diesel Exhaust Fluid (DEF) Issues for American Farmers and Truckers
Today, U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin took another step to further the Trump EPA’s work to address widespread concerns from farmers, truckers, motor coach operators, and other diesel equipment operators regarding Diesel
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EPA Advances Cooperative Federalism to Improve Air Quality by Taking an Important Step to Reconsider Biden-era “Good Neighbor Plan”
Agency Proposes to Approve State Implementation Plans for Eight States
EPA proposed phase 1 of its reconsideration of the deeply flawed Biden-era "Good Neighbor Plan."
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EPA Stops Another California Scheme to Impose its Costly Vehicle Policies on Entire Country
Agency Announces Final Disapproval of CA Heavy-Duty Vehicle Rule Pertaining to Out-of-State, Out-of-Country Vehicles
EPA announced the agency’s final disapproval of California’s Heavy-Duty Inspection and Maintenance Regulation under the Clean Air Act to the extent the regulation applies to out-of-state and out-of-country registered vehicles.
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EPA Hosts Roundtable Discussion with Data Center Coalition on Clean Air Resources and Energy Reliability
EPA convened a roundtable with the Data Center Coalition, led by senior Trump EPA officials, to discuss how the rapid growth of data centers can be harnessed to make the U.S. the AI capital of the world.
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Administrator Zeldin Visits America’s Auto Industry with Secretary Duffy and Ambassador Greer on Freedom Means Affordable Cars Tour
U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin, alongside U.S. Department of Transportation (DOT) Secretary Sean Duffy and U.S. Trade Representative (USTR) Ambassador Jamieson Greer, visited America’s auto industry in Ohio and Michigan
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EPA Reaches Settlement with Alabama Power Company to Address Compliance with Certain Coal Ash Regulations
Case is part of EPA’s larger initiative to protect communities from coal ash contamination
EPA News Release: EPA Reaches Settlement with Alabama Power Company to Address Compliance with Certain Coal Ash Regulations
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EPA Accelerates Crackdown on Toxic and Poisonous Imports in Concert with CBP, Keeping Americans Safe
EPA enforcement leadership joined CBP officials in southern California for an imports inspection demonstration and tour of the Port of Los Angeles to reinforce coordination and information-sharing.
EPA Assistant Administrator for Enforcement and Compliance Jeffrey Hall, and his Principal Deputy Assistant Administrator, Craig Pritzlaff, traveled to southern California Dec. 19 to accelerate law enforcement efforts to stop foreign profiteers.
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EPA Selects Kansas City, Missouri to Receive a $5 Million Solid Waste Infrastructure Grant
U.S. Environmental Protection Agency (EPA) announced the City of Kansas City, Missouri will receive a $5,000,000 Solid Waste Infrastructure for Recycling (SWIFR) grant to expand recycling infrastructure and waste management systems throughout the city.
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EPA Announces Approval of Tennessee’s Regional Haze Plan to Improve Visibility in Protected Areas
EPA Announces Approval of Tennessee’s Regional Haze Plan to Improve Visibility in Protected Areas
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EPA Announces Approval of South Carolina’s Regional Haze Plan to Improve Visibility in Protected Areas
EPA Announces Approval of South Carolina’s Regional Haze Plan to Improve Visibility in Protected Areas
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EPA Unveils Clean Air Act-Related Resource to Provide Transparency for Data Center Developers, Local Communities, Tribes
EPA’s Office of Air and Radiation’s New Webpage Directly Responds to Americans’ Request for Clean Air Act Guidance to Support Permitting, Building of U.S. Data Centers, AI Facilities
EPA’s Office of Air and Radiation (OAR) launched the Clean Air Act Resource for Data Centers webpage to provide data center developers, local communities and Tribes with a central location for Clean Air Act (CAA)-related resources.
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EPA Enforcement Action Against Lodi Facility Results in Significant Chemical Safety Improvements
Under settlement, company will take additional steps to prevent chemical releases
Today, U.S. Environmental Protection Agency (EPA) announced a settlement with Delta Packing Company of Lodi, Inc. for chemical safety-related violations of the Clean Air Act (CAA) and the Emergency Planning and Community Right-to-Know Act (EPCRA).
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EPA Issues Final Rule to Extend Unrealistic Biden-era Compliance Deadlines for Oil and Gas Industry, Saves Hundreds of Millions in Costs
By providing more realistic timelines for owners and operators of new and modified oil and natural gas sources, the Trump EPA is taking an important step in unleashing America’s domestic energy supply.
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EPA Delivers Additional 100 Top Environmental Accomplishments, 300 Environmental Wins Now Highlighted Since President Trump Took Office in January
Region 2 Projects Contribute to National Progress on Delivering Clean Air, Land and Water
U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin shared 100 additional environmental accomplishments EPA has achieved in the last 100 days.