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Environmental Laboratory Accreditation Program (ELAP)


ELAP provides evaluation and accreditation of environmental testing laboratories to ensure the quality of analytical data used for regulatory purposes to meet the requirements of the State's drinking water, wastewater, shellfish, food, and hazardous waste programs. The State agencies that monitor the environment use the analytical data from these accredited laboratories. ELAP-accredited laboratories have demonstrated capability to analyze environmental samples using approved methods.

More Information

elap_gis Looking for a lab? Search our GIS map to find ELAP-certified laboratories.

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elap_newsletter Read the current edition of ELAP’s Newsletter, The Lab Report.

epa complaint File an Environmental Complaint


For general inquiries or questions regarding your certification, contact ELAP at: elapca@waterboards.ca.gov

To submit comments on the TNI Standard or Regulations Development, email elapca_comments@waterboards.ca.gov.






(Updated 3/28/17)