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Environmental Laboratory Accreditation Program (ELAP)


MISSION: To implement a sustainable accreditation program that ensures laboratories generate environmental and public health data of known, consistent, and documented quality to meet stakeholder needs.

VISION: Through effective program implementation and continuous improvement of ELAP, California will produce the highest quality scientific data as a foundation for its environmental and public health programs and decisions.











More Information

elap_gis LOOKING FOR A LAB? Search our Geographic Information System (GIS) Map to find ELAP-accredited laboratories.

elap_email Be in the know! Sign up for ELAP’s email subscription to receive program updates and announcements.

  • Enter your information and select ELAP under the “General Interest” tab

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

Contact ELAP:

  • ELAP General Email Address: elapca@waterboards.ca.gov
    • Use this email address to submit your application and for questions regarding application procedures and statuses.
  • Proficiency Testing Questions: elapca_pt@waterboards.ca.gov
    • For questions regarding Proficiency Testing requirements, email our PT Unit directly.
  • Technical Questions: elapca_technical@waterboards.ca.gov
    • To obtain technical guidance regarding method and laboratory procedures, email our technical inbox. This inbox is also used to submit Change of Personnel requests.
  • Comments: elapca_comments@waterboards.ca.gov
    • This inbox is used when ELAP has requested comments on program reforms, proposals, and regulations development. You may also submit comments outside of those times on any topics.