Collections and Lists
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Emissions & Generation Resource Integrated Database (eGRID)
Data about the electric power generated in the United States. The data includes air emissions for nitrogen oxides, sulfur dioxide, carbon dioxide, methane, and nitrous oxide; emissions rates; net generation; resource mix; and and many other attributes.
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Historical Regulations Impacting Cross-State Air Pollution
On this page find a list of rulemakings relevant to interstate air pollution transport.
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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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Investigating for Possible Contamination in Norwood, Pennsylvania
Up-to-date information on EPA's site assessment in Norwood, Pennsylvania.
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Responses to 40 CFR Part 75 Petitions - 2024
Petition responses in 2024
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Responses to 40 CFR Part 75 Petitions - 2022
Petition responses in 2022
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Automotive Sectors (NAICS 336, 4231, 8111)
Find regulatory, compliance, and enforcement information for environmental laws and regulations for the automotive sectors, which includes transportation equipment manufacturing, and establishments involved in repair and maintenance services for vehicles
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Responses to 40 CFR Part 75 Petitions - 2023
Petition responses in 2023
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Responses to 40 CFR Part 75 Petitions - 2020
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2019
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2018
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2016
EPA's responses (in chronological order) to submitted Part 75 petitions in 2016.
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Responses to 40 CFR Part 75 Petitions - 2014
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2014.
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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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Regulatory and Guidance Information by Topic: Waste
Regulatory information about waste, including hazardous waste, solid waste or garbage.
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Frequent Questions About CAPD's Power Sector Emissions Data
Frequent Questions for CAPD Power Sector Emission Data
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Contact Us About Acid Rain
Acid Rain Contact Us
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Acid Rain
The causes of acid rain, how acid rain affects our environment and our health, and what regulatory actions have been put in place to reduce the pollutants that cause acid rain.
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EPA Smart Sectors Program
EPA’s Smart Sectors program works with industry sectors to develop creative solutions to better protect the environment and public health.
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IRIS Descriptions of Organs/Systems
A list of organ systems/lifestage definitions that provide background to the grouping in the advanced search portion of the website.