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 utilize the highest quality scientific data as a foundation for its environmental and public health programs and decisions.

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About ELAP

Who we are, what we do, and the latest news. Environmental Laboratory Accreditation Program (ELAP) program information, announcements, and an events calendar.

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Apply for Accreditation

Application forms, Fields of Accreditation Tables, and fee information.

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Roadmap to ELAP Accreditation

Resources to help ELAP laboratories comply with regulations that went into effect on January 1, 2021.

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Proficiency Testing

Guidance on proficiency testing (PT) requirements and tools to help you create a plan for your laboratory.

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Laboratory Assessments

Information about laboratory assessments by ELAP and third-party assessment (TPA) agencies.

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Enforcement advisories and historical enforcement actions against accredited laboratories.

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Environmental Laboratory Technical Advisory Committee (ELTAC)

Our advisory committee provides scientific advice to ELAP and the California regulatory agencies that use data from accredited laboratories.

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Laws and Regulations

Links to current ELAP laws and regulations.

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Frequently Asked Questions

A list of FAQs to answer all your important questions.

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ELAP Forms and Checklists

All the forms and checklists you need in one place.

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Contact Us

Get in touch with ELAP.

Subscribe to our ELAP email list to receive notifications and the latest updates. After subscribing, you will need to check your email host for a confirmation email to complete the subscription.

Email Address: (required)

Your Full Name: (required)

(e.g. John Smith)

Map of Accredited Laboratories

2022 California ELAP Conference

2022 ELAP Conference featuring CSEA

Report a Laboratory

  • To report a concern or complaint about an environmental laboratory, please contact the Supervisor of ELAP’s Enforcement Team, Alexandria Turner, at Alexandria.Turner@waterboards.ca.gov or (916) 323-3433.