Laws & Regulations
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The Water System Restructuring Assessment Rule
Website to describe and provide updates for the Water System Restructuring Rule mandated under AWIA
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EPA Regional Contacts
This page contains a table with a list contacts for EPA's regional offices.
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Reportable Quantities Federal Register Notices
Comprehensive Environmental Response, Compensation and Liability Act regulation designates specific substances as hazardous; identifies the quantity of substances which, when released, requires notification; and sets forth the notification requirements.
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Clean Water Act 106 Reporting Requirements Overview
This page is an overview of 106 Reporting Requirements for Tribes in EPA's Pacific Southwest (Region 9).
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EPA Evaluation of Pet Spot-on Products: Analysis and Plans for Reducing Harmful Effects
Information about EPA's evaluation of Pet Spot-on products to include analysis and mitigation plans.
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How to Search for Tolerances for Pesticide Ingredients in the Code of Federal Regulations
EPA sets limits on how much of a pesticide residue can remain on food. Learn how to search for these limits or tolerances.
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Conditions for Minimum Risk Pesticides
To qualify as minimum risk, a pesticide must meet five conditions that related to the ingredients in the product and claims that are made about the pesticide. Learn about these conditions.
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Actions under TSCA Section 5
This provides an overview of and links to the different types of regulatory actions EPA takes under the Toxic Substances Control Act Section 5.
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How to Report Spills and Environmental Violations
Where to report spills of toxic materials and violations of environmental laws or regulations.
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Products and Publications Relating to Risk Assessment Produced by the Office of the Science Advisor
List of publications related to the Risk Assessment Forum.
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For Residents
Basic page important resident information.
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2008 Ozone National Ambient Air Quality Standards (NAAQS) Nonattainment Action Documents
This page contains the fact sheets for four separate regulations dealing with the nonattainment actions of the 2008 ozone national ambient air quality standards (NAAQS).
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Final Determinations of Attainment by the Attainment Date, Extensions of the Attainment Date, and Reclassification of Several Areas Classified as Serious for the 2008 Ozone Air Quality Standards
EPA issued final actions for six nonattainment areas classified as Moderate for the 2008 ozone National Ambient Air Quality Standards (NAAQS).
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Release Notes for OTAQReg v6.6.0
The release is a minor patch that addresses bug fixes and updates to the Part 80 Excel file to include RNG RIN Separator information.
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EPA’s Registered Antimicrobial Products Effective as Sterilants [List A]
EPA registers antimicrobial products, some of which act as sterilizers.
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Hexavalent Chromium: Questions and Answers
Information about Clean Water Act analytical methods for measurement of hexavalent chromium in water (40 CFR Part 136)
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Cooling Water Intakes Rulemaking History
Rulemaking history for Cooling Water Intake regulations under Clean Water Act, with Federal Register notices and support documents.
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Method Detection Limit - Frequent Questions
Questions & answers about the revised Method Detection Limit procedure issued as part of the 2017 Methods Update Rule (amendments to 40 CFR Part 136)
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Approved CWA Test Methods: Questions and Answers
Frequent questions/answers about approved analytical methods (40 CFR Part 136)
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Overview of the Cross-State Air Pollution Rule (CSAPR)
This page provides an overview of the cross-state air pollution rule, the states affected and their requirements, and the benefits and costs of the rule