Laws & Regulations

Project to Increase 777 Airplane Production at Boeing Everett

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.

Guidance on Plantwide Applicability Limitation Provisions Under the New Source Review Regulations

This document is part of the NSR Policy and Guidance Database

Guidance for PM2.5 Permit Modeling

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. Some documents in

Darling Ingredients, Inc. (d/b/a Dar Pro), Sioux City, Iowa - Clean Water Act Public Notice

EPA is providing notice of a proposed Administrative Penalty Assessment against Darling Ingredients, Inc. for alleged violations of Section 311(j) of the CWA, 33 U.S.C. § 1321(j), and regulations promulgated thereunder at 40 C.F.R. Part 112 for the require

Joy Development Properties, LLC, Pleasant Valley, Iowa and Summit Concrete, Inc., LeClaire, Iowa - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against Joy Development Properties, LLC and Summit Concrete, Inc., for alleged violations at the companies’ residential construction site known as the Schutter Farms Addition loca

Franklin County, Kansas - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against Franklin County, Kansas for alleged violations of Section 402 of the Clean Water Act.

EPA to Support NDEE with Air Sampling at AltEn LLC Facility in Mead, Nebraska, from May 31 to June 2, 2022

EPA, with assistance from NDEE personnel, will conduct air sampling from May 31 to June 2, 2022, in an attempt to identify compounds that could be causing the foul odors at and near the AltEn LLC ethanol facility in Mead, Nebraska, weather permitting.

Village of Pender, Nebraska Wastewater Treatment Facility, Pender, Nebraska - Clean Water Act Public Notice

The EPA is providing notice of proposed Administrative Penalty Assessment against the Village of Pender, Nebraska Wastewater Treatment Facility (“Respondent”) for alleged violations of Sections 301 and/or 404 of the Clean Water Act

Gasconade County, Missouri - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against Gasconade County, Missouri (“Respondent”) for alleged violations of Section 404 of the Clean Water Act.

Goodrum Farm CR314, LLC - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against Goodrum Farm CR314, LLC (“Respondent”) for alleged violations of Section 404 of the Clean Water Act.

Majestic C Team, LLC - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against Majestic C Team, LLC., which owns a residential construction site located at 168th St and State St in Omaha, NE for alleged violations of its NPDES permit (permit No. NER11

NATTS Technical Assistance Document

This page contains the NATTS Technical Assistance Document (TAD) - revision 4, along with the Table of Comments for the current NATTS TAD.

True Minor NSR Permit: Table Rock Minerals, LLC - Gilsonite Mine

This page contains documents relevant to the true minor NSR permi for the Table Rock Minerals, LLC, Gilsonite Mine, located on the Uintah and Ouray Indian Reservation.

CWA Section 404 Guidance Documents

CWA 404 Guidance Documents

Insider Threat Mitigation Webinar

This webinar will examine the potential consequences of insider actions, discuss practical and cost-effective strategies to mitigate associated risks, and highlight tools and resources available at no cost from EPA and CISA.

• Date: July 9, 2026

Summary of Central Puget Sound Area 2nd 10-Year Carbon Monoxide (CO) Maintenance Plan

Summary of the Puget Sound carbon monoxide 2nd 10-year maintenance plan under the Washington air quality SIP.

North Cascade Road Developers, LLC - Dubuque, Iowa - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against North Cascade Road Developers, LLC, a business located at 1800 Manson Rd., Dubuque, IA 52003, for alleged violations at the Timber-Hyrst Estates Residential Development loc

CWA-09-2020-0072: Hawaii Fueling Facilities Corporation and Signature Flight Support Corporation, Honolulu, HI

Proposed administrative penalty settlement with Hawaii Fueling Facilities Corporation and Signature Flight Support Corporation for violations of Clean Water Act (CWA) regulations at facility located at 6 Sand Island Access Road, Honolulu, Hawaii.

City of West Union, Iowa - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against the City of West Union, IA, a municipality, for alleged violations of its National Pollutant Discharge Elimination System permit (permit No. IA-0035378) for discharges from

City of Osceola, Iowa - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against City of Osceola, Iowa, a municipality in Clarke County, Iowa, that operates a wastewater treatment plant and sewage collection system, which receive wastewater from various