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Laws & Regulations

NSPS-NESHAP Applicability for Excelerate Energy's Aguirre GasPort Emission Units

This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
North Carolina's Implementation of Visibility Impact Assessment Requirements for New Major Stationary Sources and Major Modifications Subject to Clean Air Act Prevention of Significant Deterioration Requirements

This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
J.R. Simplot Company's Don Siding Plant and Issues Related to Aggregation, Debottlenecking and Projected Actual Emissions

This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
U.S. Department of Energy - Bryan Mound Oil Storage - Draft NPDES Permit No. TX0074012

EPA is soliciting public comment on the proposed permit.
Documents related to proposed CAFO, MM-05-2021-0002

proposed cafo
Documents Related to EPA's Objection to Dayton Power & Light J.M. Stuart Station’s NPDES Permit

Correspondence and documents related to the permit objection.
2017 Title V Operating Permits

This page contains the 2017 Title V Operating Permits.
PSD Regulations Approved into the New York SIP

SIP Approved Prevention of Significant Deterioration of Air Quality (PSD) New York State Regulations
Niagara County Radiation Removal Sites

EPA performs field activities at three Niagara County sities. The U.S. Environmental Protection Agency is currently investigating three Niagara County properties where low level radioactive slag fill material was found in subsurface soils.
How to Link to Official Documents from the Government Publishing Office (GPO)

The most consistent way to present up-to-date content from the Federal Register, US Code, Code of Federal Regulations (CFR), and so on is to link to the official version of the document on the GPO's Federal Digital System (FDSys) website.
UIC Permit and Aquifer Exemption for Willow Field, Payette County, Idaho

EPA's Class II-Disposal underground injection control permit for well DJS 2-14 at Willow Field in Payette County, Idaho.
EPA-Approved San Joaquin Valley Unified Air District Regulations in the California SIP

EPA approved and compiled rules and regulations for the San Joaquin Valley Unified Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP).
Soap and Detergent Manufacturing Effluent Guidelines Documents

Support documents for Soap and Detergent Manufacturing Effluent Guidelines regulations (40 CFR Part 417)
Ferroalloy Manufacturing Effluent Guidelines Documents

Support documents for Ferroalloy Manufacturing Effluent Guidelines and Standards
Aluminum Forming Effluent Guidelines Documents

Support documents for Aluminum Forming Effluent Guidelines regulations
2016 Effluent Guidelines Plan Documents

Supporting documentation for EPA's Effluent Guidelines Plan
Other Clean Water Act Test Methods: Biosolids

Methods for analysis of chemical pollutants in biosolids (municipal sewage sludge). These methods are not approved under 40 CFR Part 136, but may be of interest to regulated entities, permitting authorities and the public.
Methods Update Rule Support Documents

Supporting documents for Methods Update Rules (Final May 2021; Final - August 2017); amendments to 40 CFR Part 136
Oil and Grease Measurements - Frequent Questions

Questions regarding use of EPA method 1664A for measurement of oil and grease in water
Other Support Documents for CWA Methods

General support documents for the CWA analytical methods program that are not analyte-specific