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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At Iowa State Fair, EPA Administrator Zeldin Announces Diesel Exhaust Fluid (DEF) Fix
EPA Issues Guidance to Address Derates, Power Loss Concerns Raised by American Farmers, Truckers, and Equipment Operators Without Compromising Environmental Standards
EPA Administrator Lee Zeldin announced new action to protect American farmers, truckers, and other diesel equipment operators from sudden speed and power losses caused by diesel exhaust fluid (DEF) systems.
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EPA Administrator Zeldin Visits Iowa, Announces New EPA DEF Guidance, Attends State Fair, Celebrates One Big Beautiful Bill
On Tuesday, August 12, 2025, U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin was in Iowa to visit with state, local and federal partners, farmers, and stakeholders to discuss environmental issues in the state, announce new guidance
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Make Gas Cans Great Again by Improving Flow
Today, U.S. Environmental Protection Agency (EPA) issued letters to portable fuel container (PFC or gas can) manufacturers encouraging them to add vents to gas cans to ensure safe and effective refueling.
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EPA Region 2 Highlights Accomplishments Since April
EPA Region 2 continues to deliver measurable results that are improving human health and environmental quality across the Northeast and Caribbean.
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EPA Celebrates Another 100 Days with 100 More Pro-Environmental Actions
EPA Administrator Lee Zeldin shared 100 additional environmental actions EPA has taken in the last 100 days to recognize 200 Days of providing clean air, land, and water for all Americans under President Donald Trump’s leadership.
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WHAT THEY ARE SAYING: Leaders Praise the EPA for Launching Largest Deregulatory Action in U.S. History with Proposal to Rescind Obama-Era Endangerment Finding
Elected officials, constituents and stakeholders weigh in on the EPA's proposal to rescind the 2009 Endangerment Finding, which has been used to justify over $1 trillion in regulations, including the Biden-Harris Administration’s electric vehicle mandate.
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EPA Works with Rhode Island Metal Plater to Resolve Clean Air Act Compliance Issues at Two Facilities
EPA News Release: EPA Works with Rhode Island Metal Plater to Resolve Clean Air Act Compliance Issues at Two Facilities
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ICYMI: EPA Launches the Largest Deregulatory Actions in U.S. History with Proposal to Rescind Obama-Era Endangerment Finding
EPA Administrator Lee Zeldin released the agency’s proposal to rescind the 2009 Endangerment Finding, which has been used to justify over $1 trillion in regulations
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EPA Releases Proposal to Rescind Obama-Era Endangerment Finding, Regulations that Paved the Way for Electric Vehicle Mandates
If finalized, this proposal would undo the underpinning of $1 trillion in costly regulations, save more than $54 billion annually
The U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin released the agency’s proposal to rescind the 2009 Endangerment Finding, which has been used to justify over $1 trillion in regulations.
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Allegheny, Liberty-Clairton Areas Reach Air Quality Milestones Following EPA Approval
U.S. Environmental Protection Agency (EPA) Mid-Atlantic Region announced the approval of the Commonwealth of Pennsylvania’s request to make Liberty-Clairton a designated maintenance area.
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La Autoridad de Energía Eléctrica de Puerto Rico y Genera llegan a un acuerdo con la EPA sobre violaciones pasadas a la Ley Federal de Aire Limpio
La Autoridad de Energía Eléctrica de Puerto Rico y Genera llegan a un acuerdo con la EPA sobre violaciones pasadas a la Ley Federal de Aire Limpio
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Puerto Rico Electric Power Authority and Genera Resolve Violations of the Clean Air Act with EPA
Puerto Rico Electric Power Authority and Genera Resolve Violations of the Clean Air Act with EPA
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Senate Confirms President Trump Appointee Aaron Szabo as Assistant Administrator for EPA’s Office of Air and Radiation
The U.S. Senate has confirmed Aaron Szabo to serve as the Assistant Administrator of U.S. Environmental Protection Agency’s (EPA) Office of Air and Radiation.
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EPA Fines AB&I Foundry Operator in Oakland Clean Air Act Violations Case
EPA News Release: EPA Fines AB&I Foundry Operator in Oakland Clean Air Act Violations Case
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EPA Requires California’s Central Valley Meat Company to Improve Chemical Safety
EPA News Release: EPA Requires California’s Central Valley Meat Company to Improve Chemical Safety
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EPA Region 7 Hosts Farm Bureaus
On July 1, the U.S. Environmental Protection Agency (EPA) hosted the region’s Farm Bureaus at the Regional Office in Lenexa, Kansas, to discuss topics at the intersection of agriculture and EPA regulations.
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EPA Approves West Virginia’s Regional Haze State Implementation Plan Utilizing New Commonsense Approach
EPA Approves West Virginia’s Regional Haze State Implementation Plan Utilizing New Commonsense Approach
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EPA Approves Two Significant Air Quality Actions in Louisiana
U.S. Environmental Protection Agency (EPA) approved two of the state of Louisiana’s clean air plans, known as State Implementation Plans (SIPs), addressing sulfur dioxide (SO2) pollution.
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EPA Administrator Zeldin Wraps Up Swing Across New Mexico, Illinois, and Wisconsin, Touting President Trump’s One Big Beautiful Bill
EPA Administrator Zeldin Wraps Up Swing Across New Mexico, Illinois, and Wisconsin, Touting President Trump’s One Big Beautiful Bill.
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EPA Region 7 Hosts Agribusiness and Cooperative Associations at Regional Office
EPA News Release: EPA Region 7 Hosts Agribusiness and Cooperative Associations at Regional Office