Laws & Regulations
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Frequent Questions for Small Entities
Frequently asked questions regarding small entities and rulemaking
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Clean Water in Indian Country
Tribes are eligible for delegation of certain Clean Water Act programs to restore and maintain the chemical, physical and biological integrity of the nation's surface waters.
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2011 Proposal to Revise Underground Storage Tank Regulations
In 2011, EPA proposed revisions to strengthen the 1988 federal underground storage tank (UST) regulations by increasing emphasis on properly operating and maintaining UST equipment.
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Secondary Containment and Under-Dispenser Containment - 2015 Requirements
Learn about a new requirement that owners and operators must install secondarily contained tanks and piping when installing or replacing tanks and piping.
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Operating And Maintaining UST Systems - 2015 Requirements
Learn about requirements for owners and operators of underground storage tank (UST) systems under new regulations.
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Pollution Prevention Law and Policies
Information on Pollution prevention laws, definitions and policies including a list of relevant executive orders.
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Drinking Water Regulations and Contaminants
This page contains regulations which are legally enforceable standards that apply to public water systems.
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Summary of Executive Order 12866 - Regulatory Planning and Review
Summarizes E.O.s 12866 and 13563, which provide that significant regulatory actions be submitted for review to the Office of Management and Budget.
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SDWA Economic Analysis
This page provides information on EPA’s approach to economic analysis when developing standards for drinking water contaminants.
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Formaldehyde Emission Standards for Composite Wood Products
formaldehyde, composite wood products, TSCA
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Small Drinking Water System Variances
Small system variances allow a small system to install and maintain technology that can remove a contaminant to the maximum extent that is affordable and protective of public health in lieu of technology that can achieve compliance with the regulation.
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SafeWater LCR User Guide and Description of Source Code
SafeWater LCR User Guide
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Overview of the Safe Drinking Water Act
An overview of the Safe Drinking Water Act.
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EPA Guidance Documents
Information on EPA's guidance documents
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Ozone National Ambient Air Quality Standards (NAAQS)
Read about the 2015 revised ozone standards, and find the regulatory impact analyses, related rules, and other supporting doucments
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Endangered Species Protection Bulletins
Endangered Species Protection Bulletins set forth geographically specific pesticide use limitations for the protection of threatened and endangered (listed) species and their designated critical habitat. Find out how to get and use Bulletins.
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Technical Systems Audits (TSAs)
This page provide guidance and training material for the implementation of Technical Systems Audits within EPA's ambient air monitoring program.
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2020 Order Denying in a Petition for Object to Title V Operating Permit for Hanford
This document is part of the title V petition database.
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NSPS for GHG Emissions from New, Modified, and Reconstructed Electric Utility Generating Units
In 2015, EPA issued the final Standards of Performance for Greenhouse Gas Emissions from New, Modified, and Reconstructed Stationary Sources: Electric Utility Generating Units. EPA is proposing to revise these standards.
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Pollutant-Specific Significant Contribution Finding for GHG Emissions from New EGUs, and Process for Determining Significance of Other NSPS Source Categories
EPA is providing a clear framework for determining when standards are appropriate for greenhouse gas (GHG) emissions from stationary source categories under Clean Air Act (CAA) section 111(b)(1)(A).