Laws & Regulations

Clean Water Act Analytical Methods

The EPA publishes laboratory analytical methods (test procedures) that are used by industries and municipalities to analyze the chemical, physical and biological components of wastewater and other environmental samples required by the Clean Water Act.

Effluent Guidelines

Effluent guidelines are national standards for wastewater discharges to surface waters and municipal sewage treatment plants. We issue the regulations for industrial categories based on the performance of treatment and control technologies.

Vehicle Emissions Inspection and Maintenance (I/M): General Information and Regulations

Access to inspection and maintenance information (I/M) and on-board diagnostic (OBD) analysis.

Multi-use Fact Sheet for Benzene: (Aquatic Life - acute concentration), Minnesota Pollution Control Agency

Benzene aquatic life critera, Feb 1993

Aquatic Life Fact Sheet for Carbon tetrachloride: (Aquatic Life - acute concentration), Ohio Environmental Protection Agency

Carbon tetrachloride (tetracholoromethane) acute and chronic data

Aquatic Life Fact Sheet for Benz[a]anthracene: (Aquatic Life - acute concentration), Ohio Environmental Protection Agency

Benzoanthracene acute and chronic data

Human Health - water ingestion only Fact Sheet for Dibromomethane: (Human Health - water ingestion only), New York State Department of Environmental Conservation

Dibromomethane summary of information, derivation of value, references

Human Health - water ingestion only Fact Sheet for Methyl methacrylate: (Human Health - water ingestion only), New York State Department of Environmental Conservation

Methyl methacrylate summary of information, derivation of value and references

Addressing Contamination Incidents in RRAs and ERPs

In this webinar, EPA will provide examples of how water utilities can address contamination incidents in their risk and resilience assessment (RRA) and emergency response plan (ERP).

Date: May 27, 2025

Water Quality Standards Regulations: New Mexico

Information related to Water Quality Standards for New Mexico.

Substitutes in Flexible Polyurethane

This page contains the list of acceptable/unacceptable substitutes for flexible polyurethane.

Substitutes in Polystyrene: Extruded Sheet

This page lists the acceptable/unacceptable substitutes for polystyrene extruded sheets

Marine Protection Permitting in EPA Region 6

Overview of marine protection permitting in South Central, US. Includes materials dumped in the Region, MPRSA permits issues, dredged material testing guidance, ocean site descriptions and information, regional dredging teams and other partnerships

Marine Protection Permitting in EPA Region 4

Overview of marine protection permitting in Southeast United States. Includes materials dumped in the Region, MPRSA permits issues, dredged material testing guidance, ocean site descriptions and information, regional dredging teams and other partnerships