Laws & Regulations

GHG PSD Permitting in EPA's South Central Region

GHG PSD Permit Rescission in Texas

Compliance

Information about EPA's Compliance program.

Greenhouse Gas RESTful Data Service

Search the GHG data for individual facilities by name, or location or filter the data set by state or county, industrial sectors, annual facility emissions thresholds and greenhouse gases.

Class I Redesignation

Re-designation is one of the tools available to tribes (and states) under the CAA to afford special protection to air quality.

RCRAInfo Search User Guide

Hazardous waste information is contained in the Resource Conservation and Recovery Act Information (RCRAInfo), a national program management and inventory system about hazardous waste handlers.

Other Clean Water Act Test Methods: Chemical

Methods for analysis of chemical pollutants in wastewater. These methods are not approved under 40 CFR Part 136, but may be of interest to regulated entities, permitting authorities and the public.

PCS-ICIS Customized Search User Guide

The Permit Compliance System (PCS) provides information on companies which have been issued permits to discharge waste water into rivers.

Enforcement

Enforcing environmental laws is an integral part of EPA's Strategic Plan to protect human health and the environment.

Air Enforcement

Information about enforcement of the clean air act. Covers mobile and stationary sources, as well as compliance monitoring and assurance.

Water Enforcement

EPA enforces requirements under the Clean Water Act (CWA) and Safe Drinking Water Act (SDWA).

Final Rule - Legacy Coal Combustion Residuals Surface Impoundments and CCR Management Units

EPA finalized standards for inactive surface impoundments at inactive facilities and CCR management units. This rule advances the agency’s commitment to protecting communities, groundwater, waterways, drinking water, and the air from CCR contamination.

NPDES Permits in EPA’s Pacific Southwest (Region 9)

EPA's Pacific Southwest (Region 9) issues NPDES permits for wastewater, industrial, and stormwater discharges on Tribal lands in Arizona, California, Nevada, and Navajo Nation Lands, Guam, American Samoa, CNMI, and any discharges into federal ocean waters.

CWA-09-2025-0119: Engineering/Remediation Resources Group Inc., Martinez, CA; Consent Agreement and Final Order

Consent agreement and final order in the matter of Engineering/Remediation Resources Group, Inc. (Respondent) for violations of the Clean Water Act (CWA) at its facility in the Village of Aua, on the island of Tutuila in American Samoa.

Arkansas SIP: Reg 19, Chap 10: Regulations for the Control of Volatile Organic Compounds in Pulaski County, SIP effective November 22, 2023 (ARd42) to January 28, 2024

AR SIP: Reg 19, Chap 10: Regulations for the Control of Volatile Organic Compounds in Pulaski County

Texas SIP: 30 TAC 117.451-117.458: Nitric Acid Manufacturing - General; SIP effective 2000.04.03

Texas SIP: 30 TAC 117.570. Trading; SIP effective 2000.04.03

Texas SIP: 30 TAC 117.520. Compliance Schedule For Commercial, Institutional, and Industrial Combustion Sources; SIP effective 2000.10.31

Texas SIP: 30 TAC 117.540. Phased Reasonably Available Control Technology (RACT); SIP effective 2000.04.03

Loss of Pressure in Drinking Water Systems in Wyoming and on Tribal Lands in EPA Region 8

Distribution systems can lose pressure for various reasons that include water main break, equipment failure, loss of power, etc.