Laws & Regulations
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Fact Sheet: Protection of Stratospheric Ozone: New Listings for the Significant New Alternatives Policy Program in the Refrigeration & Air Conditioning Sector
This is determination of acceptability (Notice 35) expands EPA’s SNAP list of acceptable substitutes, providing industry with more options in the refrigeration and air conditioning sector. It also clarifies the types of equipment included in the refrigerat
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Fact Sheet: Proposed Rule 24 - Listing of HFO-1234yf under the Significant New Alternatives Policy Program for Motor Vehicle Air Conditioning in Nonroad Vehicles and Servicing Fittings for Small Refrigerant Cans
Under section 612 of the Clean Air Act, EPA reviews substitutes within a comparative risk framework.
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Method 323 - Formaldehyde Measurement Using Derivitization
Promulgated CFR Test Method 323—Measurement of Formaldehyde Emissions From Natural Gas-Fired Stationary Sources—Acetyl Acetone Derivitization Method
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NPDES Permit for General Services Administration (GSA) West Heating Plant
Under the National Pollutant Discharge Elimination System permit number DC0000035, General Services Administration (GSA) West Heating Plant is authorized to discharge from a facility to receiving waters named Rock Creek.
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How EPA Regulates Drinking Water Contaminants
This page describes the EPA's methods and processes of regulating contaminants in drinking water.
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EPA-Approved Northern Sonoma County Air District Regulations in the California SIP
EPA approved and compiled rules and regulations for the Northern Sonoma County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP).
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Changes to TRI Reporting Requirements for Per- and Polyfluoroalkyl Substances and to Supplier Notifications for Chemicals of Special Concern
Description of proposed rule to add PFAS to the chemicals of concern list for TRI reporting.
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EPA-Approved Imperial County APCD Regulations in the California SIP
EPA approved and compiled rules and regulations for the Imperial County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP).
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December 2019 - Proposed Revisions to Testing Regulations for Air Emission Sources
December 2019 - Proposed Revisions to Testing Regulations for Air Emission Sources
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December 2019 - Fact Sheet - Proposed Test Method updates
December 2019 - Fact Sheet - Proposed Test Method updates
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Method 19 - Sulfur Dioxide Removal and Particulate, Sulfur Dioxide and Nitrogen Oxides from Electric Utility Steam Generators
CFR Promulgated Test Method 19 Determination of sulfur dioxide removal efficiency and particulate, sulfur dioxide and nitrogen oxides emission rates.
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Definition of "Waters of the United States": Rule Status and Litigation Update
Webpage giving updates regarding the litigation on WOTUS and the definition that applies in light of that litigation
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Regulatory Impact Analysis for the Review of the Clean Power Plan: Proposal
Regulatory Impact Analysis for the Review of the Clean Power Plan: Proposal
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Legal Authority Review Status 11-08-2016
Legal Authority Review Status NPDES Petition for Program Withdrawal in Wisconsin
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Dec. 19, 1980 Ambient Air Letter
This document is part of the NSR Policy and Guidance Database
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Comments on Proposed Amendments to Chapter 106, 116 for Maintenance, Startup and Shutdown (MSS) Chapter 106, Subchapter K
This document is part of the NSR Policy and Guidance Database
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Applicability of NSR Requirements to the Henkel Corporation
This document is part of the Title V Policy and Guidance Database.
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Applicability of EPA's PSD Regulations to Floating Seafood Processors
This document is part of the Title V Policy and Guidance Database.
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American Soda.. Multi-facility Source Determination
This document is part of the Title V Policy and Guidance Database.