Learn the Issues
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Fuel Waivers
Links to fuels waivers by U.S. state for years 2005
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Ports Primer: A2. Citizen Mapping, Data Tools and Resources
The Ports Primer appendix includes a list of tools which may make the Ports Primer more useful.
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Ecosystem Effects of Ozone Pollution
Ground level ozone is absorbed by the leaves of plants, where it can reduce photosynthesis, damage leaves and slow growth. It can also make sensitive plants more susceptible to certain diseases, insects, harsh weather and other pollutants.
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CSAPR Compliance Year 2021 NUSA NODAs
This page contains links to NUSA Notices of Data Availability for the CSAPR 2020 compliance year.
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Clean Water State Revolving Fund (CWSRF)
How the Clean Water State Revolving Fund works, how to obtain funding, program eligibility, innovative ways to use the funds to get the greatest water quality benefits and leverage financial resources of the program, and share success stories.
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CSAPR Assurance Provision
This page provides Assurance Provision Information for The Cross-State Air Pollution Rule trading programs to ensure that the emissions reductions required from each state under the trading program will occur within the state.
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Summary of Proposed NOₓ Emission Limits for Industrial Sources
Summary of Proposed NOₓ Emission Limits for Industrial Sources for the CSAPR for the 2015 Ozone NAAQS
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Good Neighbor Plan Results
EPA is releasing NOx emission reductions from the first ozone season under the Good Neighbor Plan.
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The Clean Air Act and the Economy
Since 1970, cleaner air and a growing economy have gone hand in hand. The Act has created market opportunities that have helped to inspire innovation in cleaner technologies for which the United States has become a global market leader.
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Particulate Matter (PM) Pollution
Particulate matter (PM) is one of the air pollutants regulated by the National Ambient Air Quality Standards (NAAQS). Reducing emissions of inhalable particles improves public health as well as visibility.
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Harbor Craft (HC) Best Practices to Improve Air Quality
Provides best practices that can be utilized by ports facilities to improve air quality including implementing a vessel speed reduction program, reducing vessel turnaround time, and using shore power.
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Motor Vehicle Air Conditioner (MVAC) System Servicing
This site addresses efforts to control HCFC and HFC chemicals used in motor vehicle air conditioning units that may damage the stratospheric ozone or have global warming potential.
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NPDES CAFO Regulations Implementation Status Reports
EPA compiles annual summaries on the implementation status of the NPDES CAFO regulations. Reports include, for each state: total number of CAFOs, number and percentage of CAFOs with NPDES permits, and other information associated with implementation of the
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Stormwater Discharges from Transportation Sources-Research, Tools, and Webcasts
Transportation authorities manage the runoff on street, road, and highways that has polluted by cars, trucks, buses, and other vehicles.
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NPDES Applications and Forms-Webinars
A place for all NPDES applications and forms.
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1990 Clean Air Act Amendment Summary: Title V
In 1989, President George W. Bush proposed legislation designed to curb three major threats to the environment and public health: acid rain, urban air pollution, and toxic air emissions. The proposal also called for establishing a national permits program.
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NPDES Applications and Forms-Checklists
A place for all NPDES applications and forms.
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Advanced Refrigeration Program
GreenChill’s Advanced Refrigeration Program promotes the use of advanced refrigeration technologies, strategies, and practices.
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Meeting the Challenge of Cleaner Air- 2008
Read a brochure that provides an overview of the U.S.-Canada Air Quality Agreement and features recent progress made by the United States and Canada to control transboundary air pollution.
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Cleaner Air through Cooperation: Progress under the Air Quality Agreement- 2003
Read a brochure that provides an overview of the air quality agreement between the U.S. and Canada, followed by key commitments and progress, including air quality programs and scientific cooperation between the two nations.