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.
Important News – Be In the Know!
- New! ELAP seeks new members for ELTAC. For those interested, see the information on who we are looking for and how to apply.
- New! ELAP offers methods affected by the 2021 Methods Update Rule
- Did you miss ELAPCon-2023? Check out the recordings linked on the ELAPCon webpage!
About ELAP
Who we are and what we do.
Apply for Accreditation
Application forms, Fields of Accreditation Tables, and fee information.
Roadmap to ELAP Accreditation
Resources to help ELAP laboratories comply with regulations that went into effect on January 1, 2021.
Proficiency Testing
Guidance on proficiency testing (PT) requirements and tools to help you create a plan for your laboratory.
Laboratory Assessments
Information about laboratory assessments by ELAP and third-party assessment (TPA) agencies.
Enforcement
Enforcement advisories and historical enforcement actions against accredited laboratories.
Methods Update Rule
Information related to methods affected by the US EPA’s method update rule.
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.
Laws and Regulations
Links to current ELAP laws and regulations.
Frequently Asked Questions
A list of FAQs to answer all your important questions.
ELAP Forms and Checklists
All the forms and checklists you need in one place.
Contact Us
Get in touch with ELAP.
Subscribe to our ELAP email list to receive notifications and the latest updates.
Map of Accredited Laboratories
- LOOKING FOR A LAB?
Search our Geographic Information System (GIS) Map to find ELAP-accredited laboratories.
Timeline Guidance Tool
For assistance with On-site Assessment, Proficiency test scheduling and application due dates, please visit our Timeline Guidance Tool.
Report a Laboratory
- To report a concern or complaint about an environmental laboratory, please contact the ELAP technical inbox at elapca_technical@waterboards.ca.gov.
