United States

Industrial Wastewater Treatment Technology Database (IWTT)

Database on industrial wastewater treatment technology performance from peer-reviewed journals, conference proceedings, and government reports.

Fertilizer Manufacturing Effluent Guidelines

Overview and documents for Fertilizer Manufacturing Effluent Guidelines (40 CFR Part 418)

Nov. 6, 2003 Letter Answering if a Gasoline Terminal is Subject to the 100 Ton Per Year Major Source Threshold

This document is part of the NSR Policy and Guidance Database

Benthic HAB Discussion: March 17, 2025

Webinar recording and presenter information for the March 17, 2025 Benthic HABs Discussion Group.

Retrieving and Printing NSCEP Publications

The details of how to obtain documents available through the National Service Center for Environmental Publications (NSCEP), whether ordered online, or by other channels are covered.

2017 Petition Requesting the Administrator Object to Title V Permit for Essroc Cement Company

This document is part of the Title V Petition Database.

2009 Petition Requesting the Administrator Object to Title V Permit for United States Steel Corporation's Granite City Works

This document is part of the Title V Petition Database.

2012 Petition Requesting the Administrator Object to Title V Permit for Motor Castings Co.

This document is part of the Title V Petition Database.

2015 Petition Requesting the Administrator Object to Title V Permit for White Bluff Power Plant

This document is part of the Title V Petition Database.

PSD and Title V Permitting Guidance for GHGs

This document is part of the NSR and the Tittle V Policy and Guidance Databases.

Order Responding to 2015 Petition to Object to Tennessee Valley Authority Bull Run Operating Permit

This document is part of the Title V Petition Database.

Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act

This document is part of the Title V Policy and Guidance Database

2016 Petition Requesting the Administrator Object to Title V Permit for AK Steel Dearborn Works

This document is part of the Title V Petition Database.

2013 Petition Requesting the Administrator Object to Title V Permit for Appleton Coated, LLC Plant

This document is part of the Title V Petition Database.

Minor New Source Review Program Public Notice Requirements under 40 CFR 51.161(b)(3)

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.

John Deere Dubuque Works Stationary or Mobile Source Determination

This document is part of the NSR and Title V Policy and Guidance Databases

PSD and Title V Permitting Guidance for GHGs

This document is part of the NSR and the Tittle V Policy and Guidance Databases.

EPA Process Manual for CAA requests under 111(b), 111(d), 112, and 129

This document is process manual for processing responding to request concerning applicability and compliance requirements under certain Clean Air Act standards.

EPA Proposes Repeal of 2024 Nonattainment Decision for Utah’s Northern Wasatch Front to Prevent Area from Being Penalized for Foreign Emissions

Press release about proposed decision to rescind Northern Wasatch Front nonattainment

• Release Date: April 21, 2026

Gum and Wood Chemicals Manufacturing Effluent Guidelines

Overview and documents for the Gum and Wood Chemicals Manufacturing Effluent Guidelines regulation (40 CFR Part 454).