Learn the Issues
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Regulatory Actions for Allowance Allocation and Reporting
Proposed Rulemaking: Phasedown of Hydrofluorocarbons: Allowance Allocation Methodology for 2024 and Later Years.
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Emissions Trading
Learn about emissions trading programs, also known as cap and trade programs, which are market-based policy tools for protecting human health and the environment by controlling emissions from a group of sources.
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Green Power Partnership
The U.S. EPA's Green Power Partnership is a voluntary program designed to reduce the environmental impact of conventional electricity generation by promoting renewable energy.
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Ethylene Oxide (EtO)
Learn about sources of ethylene oxide, risks associated with ethylene oxide, and what EPA is doing.
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Green Power Markets
To provide important content regarding the US green power market, consumer information pertaining to available green power supply options, and information around the market principles, market practices, and emerging market issues.
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Electric Power Systems Partnership
The SF6 Emission Reduction Partnership for Electric Power Systems was a collaborative effort between EPA and the electric power industry to identify, recommend, and implement cost-effective solutions to reduce sulfur hexafluoride (SF6) emissions.
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Energy and the Environment
Provides general information on energy resources and their environmental effects; how electricity is delivered and used; and related tools and EPA program links.
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Hazardous Air Pollutants
This area will provide an overview of hazardous air pollutants and EPA's approach to understanding and regulating them. The area will have access to regulations for industrial sources of air toxics.
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Clean Air Power Sector Programs
Clean Air Power Programs & Data describes regulatory programs such as the Acid Rain Program and the Cross-State Air Pollution Rule to reduce air pollution from the power sector that contributes to human health and environmental issues.
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Stationary Sources of Air Pollution
This web area catalogs emissions requirements for stationary sources of air pollution by categories recognized by the Clean Air Act.
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CHP Resource Center
The CHP Partnership seeks to reduce air pollution and water usage associated with electric power generation by promoting the use of CHP. The Partnership works to remove policy barriers and to facilitate the development of new projects.
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Cross-State Air Pollution
The Cross-State Air Pollution Rule (CSAPR), requires states to significantly improve air quality by reducing power plant emissions that contribute to ozone and/or fine particle pollution in other states.
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New Climate-Friendly Motor Vehicle Air Conditioning Refrigerants
Brochure provides information on new climate-friendly motor vehicle air conditioning refrigerants, including alternatives to ozone-depleting substances.
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Part 75 Emissions Monitoring Technical Questions and Answers
Provides clarification on the requirements of 40 CFR Part 75 through a series of questions and answers that can be used by units to monitor mass sulfur dioxide emissions, mass carbon dioxide emissions, nitrogen oxide rate and heat input.
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Hazard Data Explorer
Maps for regional natural hazard risks.
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Manufacturing of Nutritional Yeast: NESHAP Risk and Technology Review Proposal
Proposed amendments to air toxics standards for the nutritional yeast manufacturing sector
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Alternative Means of Emission Limitation - Lyondell Chemical Company
Signed final approval and fact sheet for the alternative means of emission limitation request for a multi-point ground flare from Shell Oil Products, Martinez Refinery
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Final National Emission Standards for Hazardous Air Pollutants: Carbon Black Production and Cyanide Chemicals Manufacturing Residual Risk and Technology Reviews, and Carbon Black Production Area Source Technology Review
Final National Emission Standards for Hazardous Air Pollutants: Carbon Black Production and Cyanide Chemicals Manufacturing Residual Risk and Technology Reviews, and Carbon Black Production Area Source Technology Review
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Final Rule - National Emission Standards for Hazardous Air Pollutants: Refractory Products Manufacturing Residual Risk and Technology Review
National Emission Standards for Hazardous Air Pollutants: Refractory Products Manufacturing Residual Risk and Technology Review
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Final Rule - Flexible Polyurethane Foam Fabrication Operations Risk and Technology Review and Flexible Polyurethane Foam Production and Fabrication Area Source Technology Review
Final Rule - Flexible Polyurethane Foam Fabrication Operations Risk and Technology Review and Flexible Polyurethane Foam Production and Fabrication Area Source Technology Review