Laws & Regulations

EPA Reaches Settlement with Eakas Corp. for Alleged Clean Air Act Violations in Peru, Illinois

EPA News Release: EPA Reaches Settlement with Eakas Corp. for Alleged Clean Air Act Violations in Peru, Illinois

Release Date: June 12, 2025

Final Update to NOx SIP Call Regulations

On this page find EPA's proposal to update the NOX SIP Call Regulations with the addition of monitoring flexibility and general streamlining of provisions.

CWA Section 404 Guidance Documents

CWA 404 Guidance Documents

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Puerto Rico SIP

State Review Framework (SRF) - Indiana Final Reports

Details findings of the Indiana state review framework

Fact Sheet: Control Techniques Guidelines (CTG) for Shipbuilding and Ship Repair Facilities Operation (Surface Coating)

This page contains an August 1996 fact sheet with information regarding the CTG and Alternative Control Techniques (ACT) for Surface Coating at Shipbuilding and Ship Repair Facilities Operations. This document provides a summary of this guidance

Water Quality Standards Regulations: California

California water quality standards that are EPA-approved or in effect for Clean Water Act purposes.

EPA Approved Regulations in the Puerto Rico SIP

UIC-09-2025-0046: 1284 Kilauea K&M LLC, Hilo, HI; Proposed Settlement of Safe Drinking Water Act Administrative Penalty

Consent Agreement and Proposed Final Order between EPA Region 9 and1284 Kilauea K&M LLC, Hilo, Hawaii. Docket No. UIC-09-2025-0046

Federal Guidance for the Establishment, Use and Operation of Mitigation Banks

Policy guidance for the establishment, use and operation of mitigation banks for the purpose of providing compensatory mitigation for authorized adverse impacts to wetlands and other aquatic resources.

EcoElectrica, L.P. Peñuelas, PR

This page contains the final PSD permit for EcoElectrica, L.P. Peñuelas, PR
This permit was issued on March 13, 2018.

Long Term 2 Second Round Source Water Monitoring and Bin Placement Memo

The Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR) applies to all public water systems served by a surface water source or public water systems served by a ground water source under the direct influence of surface water.

Total Coliform Rule Compliance Help for Public Water Systems

The following materials for public water systems (e.g., owners and operators) are to assist in complying with the requirements of the Total Coliform Rule and Revised Total Coliform Rule

Ground Water Rule Compliance Help for Primacy Agencies

Primacy agencies and states can use materials on this page to support compliance with the Ground Water Rule.

Interim Enhanced Surface Water Treatment Rule Documents

The IESWTR balances the need for treatment with potential increases in disinfection by -products. The materials found on this page are intended to assist public water systems and state in the implementation of the IESWTR.

Surface Water Treatment Rules

A page for Surface Water Treatment Rules that provides a summary, history, and compliance information.

Sanitary Survey Guidance Manuals

This page contains guidance manuals for primacy agencies conducting sanitary surveys at drinking water systems.

Ground Water Rule Compliance Help for Water System Owners and Operators

EPA has developed materials for drinking water system owners and operators. The materials on this page can assist in complying with requirements of the Ground Water Rule (GWR).

Public Notification Rule

The Public Notice rule is part of the Safe Drinking Water Act (SDWA). The rule ensures that consumers will know if their drinking water does not meet standards; or if the water system fails to test its water or has been granted a variance or an exemption.

Five Year Self- Inspection Requirements under Aircraft Drinking Water Rule

This page contains the ADWR memo regarding self-inspections.