Laws & Regulations
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NPDES Permit for Fort Carson Landfill No. 5 in Colorado
Under NPDES permit CO-0034771, the United States Army, HQ, Fort Carson, is authorized to discharge groundwater seepage from the Landfill No. 5 facility at the Fort Carson Army Post in El Paso County, Colorado, to B Ditch, a tributary of Fountain Creek.
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Evolution of the Clean Air Act
This page describes how the Clean Air Act and its subsequent amendments in 1977 and 1990 evolved from the Air Pollution Control Act on 1955
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The Clean Air Act in a Nutshell: How It Works
Congress designed the Clean Air Act to protect public health and welfare from different types of air pollution caused by a diverse array of pollution sources.
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The Clean Air Act - Highlights of the 1990 Amendments
On November 15, 1990 the Clean Air Act was amended. Learn about the key results from the amendments, including air quality, acid rain, haze, and ozone layer protection.
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Fact Sheet: Proposed Revisions to the Product Noise Labeling Regulation for Hearing Protection Devices, August 3, 2009
This fact sheet provides an overview of the proposed 2009 revisions to product noise labeling regulations
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1990 Clean Air Act Amendment Summary: Title I
This page provides an overview of the 1990 amendments to Title I of the Clean Air Act, which were enacted to curb acid rain, urban air pollution and toxic air emissions. The edits to this title deal with the national ambient air quality standards.
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1990 Clean Air Act Amendment Summary: Title IV
This page provides an overview of the 1990 amendments to Title IV of the Clean Air Act, which were enacted to curb acid rain, urban air pollution and toxic air emissions. The edits to this title deal with acid deposition control.
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1990 Clean Air Act Amendment Summary: Title III
This page provides an overview of the 1990 amendments to Title III of the Clean Air Act, which were enacted to curb acid rain, urban air pollution and toxic air emissions. The edits to this title deal with toxic air pollutants.
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Area Designations in Illinois
petitions for reconsideration/administrative stay and EPA response letters regarding designations for the 2010 so2 NAAQS
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SO2 Designations - Round 2 - Comparing State Recommendations and EPA Responses - Feb 2016
State Designations - Round 2 - Comparing State Recommendations and EPA Responses
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SO2 Designations - Round 3 Tribal Recommendations and EPA Responses
Sulfur Dioxide Designations - Tribal Recommendations
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Guidance to States for Meeting Conflict of Interest Requirements of Section 128
Guidance to States for Meeting Conflict of Interest Requirements of Section 128
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Nitrogen Dioxide Designations - Kentucky State Recommendations and EPA Response
2010 Nitrogen dioxide (NO2) standards. Kentucky state recommendations and EPA response.
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Learn About Ozone Designations
Basic information about Ozone Designations
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Reconsideration of the Nonattainment Designation for Williamson Co., Illinois
Reconsideration of the Area Designation for the 2010 1-Hour Sulfur Dioxide (SO2) Primary National Ambient Air Quality Standard for Williamson County, Illinois
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Ozone Designations - 2015 Standards - Vermont State Recommendations
Ozone Designations - 2015 Standards. Vermont State Recommendations and EPA Responses
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Ozone Designations - 2015 Standards - Mississippi State Recommendations
Ozone Designations - 2015 Standards. Mississippi State Recommendations and EPA Responses
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Ozone Designations - 2015 Standards - Kansas State Recommendations
Ozone Designations - 2015 Standards. Kansas State Recommendations and EPA Responses
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Northwest Pipeline Corporation - Permitting Information
US/Canada AQA Notification Table
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Ozone Designations - 2015 Standards - Alabama State Recommendations
Ozone Designations - 2015 Standards. Alabama State Recommendations and EPA Responses