EPA's Compendium of Environmental Testing Laboratories (Laboratory Compendium) is a limited-access online database of environmental laboratories nationwide. It is available to EPA; federal, state, and local emergency responders; laboratory personnel; and water utilities. The database contains each laboratory's specific capabilities to analyze chemical, biological, and radiological contaminants.

• Environmental Response Laboratory Network’s (ERLN's) EPA Laboratory Compendium Fact Sheet.

All laboratories accepted into the ERLN are required to register and maintain a laboratory record in the EPA Laboratory Compendium. Emergency responders across the country use the Laboratory Compendium to identify and access labs that meet the needs of a specific response effort. ERLN members will be identified so that responders know to expect consistency and high quality data.

To access the Laboratory Compendium, please visit the EPA Lab Compendium website.