Collections and Lists
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EPA Approved Source-Specific Requirements in the Idaho SIP
EPA approved state source-specific requirements in the Idaho air quality State Implementation Plan (SIP) (40 CFR Part 52.670(d)).
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CAA Permitting in EPA's Mid-Atlantic Region
Air permitting in EPA's Mid-Atlantic region, Region 3; serving Delaware, D.C., Maryland, Pennsylvania, Virginia and West Virginia
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Historic FOIA Logs
EPA FOIA logs for FY2009 to FY2025
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Safe Drinking Water Act: Consumer Confidence Reports (CCR)
A Web site to support the implementation of the Consumer Confidence Reports (CCR) and the public's access to drinking water quality reports.
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State Authorization Tracking System (StATS)
Documents and details about EPA's RCRA State Authorization
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State Authorization under the Resource Conservation and Recovery Act (RCRA)
Documents and details about EPA's RCRA State Authorization
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Site Milestones
Chart of milestones for the Butte Area/Silver Bow Creek Superfund Site.
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Office of Air and Radiation Grants: FOIA Records Repository
Office of Air and Radiation Grant Program Repository
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Tools and Partnerships for Community Revitalization
Introduction of an ORD, Region 3 collaborative project to use ORD-developed tools for community revitalization. Provides a list and brief descriptions of the tools included in the project.
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Louisiana NPDES Permits
NPDES water permits issued in Louisiana.
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Texas NPDES Permits
NPDES wastewater discharge permits issued in Texas.
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Frequently Asked Questions About the Clean Air Act Title V Permit for Veolia in Sauget, Ill.
Technical Solutions for the Request for Renewal of the Clean Air Act Title V Permit for Veolia’s Sauget Facility
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Vehicles and Engines
On this page you will find links to information about nonroad engines and highway vehicles.
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Transportation Conformity Training and Presentations
EPA's OTAQ has provided multiple conformity training sessions in the past to assist state and local governments in implementing conformity requirements. As training information is prepared for other venues, it will be posted on this page.
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Documents: Notices of Intent to Sue (2017)
This page includes notices of intent to sue received by the U.S. Environmental Protection Agency in 2017.
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Stormwater Tools in New England
Stormwater tools and research in New England. Information, data, tools, and research pertaining to the regulation, control, and study of stormwater in New England
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Ozone Layer Protection Milestones of the Clean Air Act
In 2020, EPA’s Stratospheric Protection Division highlights Title VI of the CAA and 30 years of achievements to restore the ozone layer and protect human health and the environment.
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Emissions Testing Laboratory
This page provides links to NVFEL facility and technical capabilities.
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Community-Port Collaboration
List of community-port collaboration content.
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Technical Resources for Ports
Technical Resources for Ports, as part of the Ports Initiative.