Welcome to the Louisiana
Environmental Laboratory Accreditation Program (LELAP)
Louisiana Department of Environmental Quality
OES - Permit Support Services Division*New
Notifications and Accreditations Section, LELAP Group
P.O. Box 4313, Baton Rouge, LA 70821-4313 *New
Physical Address: 602 North 5th St, BR, LA 70802 *New
Phone No. (225) 219-3181; Fax No. (225) 219-3310 *New
The Louisiana Environmental Laboratory Accreditation Program is designed to ensure the accuracy, precision, and reliability of the data generated, as well as the use of the department-approved methodologies in the generation of that data. Laboratory data generated by commercial environmental laboratories that are not accredited under these regulations will not be accepted by the department in accordance with LAC 33:I.4501.A.2. Whenever samples are subcontracted to another environmental testing laboratory, the original laboratory shall maintain a verifiable copy the results with a chain of custody. The procedure may not be used to circumvent proper accreditation or any state requirements. The original laboratory is responsible for ensuring that the secondary laboratory used is properly accredited for the scope of testing performed in accordance with LAC 33:I.5307.D.
Staff Contacts 
Please note: A $660 Accreditation Application Fee must accompany this application form in order for the application to be processed. Your laboratory will be invoiced at a later date for your Annual Fees.
- LELAP is publishing the laboratory records in the Electronic Data Management System (EDMS). EDMS is the system for LDEQ’s electronic repository of official records that have been created or received by the Department.
- EDMS users need to create an account in EDMS if they are not already a registered user. The direct link to EDMS is http://edms.deq.louisiana.gov. Once there, users may click on the Create Account link on the left side of the page. LELAP recommends visiting the HELP page on the left side of the screen. It provides helpful information in navigating the system.
- Certificates and Scopes of Accreditation may be obtained by using the agency interest (AI) number in an Electronic Document Management System (EDMS) query. To perform the query, please go to http://edms.deq.louisiana.gov/app/doc/querydef.aspx
Proficiency Test Requirements
LELAP Assessment Checklist for State Accredited Facilities
LELAP Assessment Checklist for NELAP Accredited Facilities
- Fugitive Emission Testers - Fugitive emission testers performing EPA Method 21 only and no other analyses are not required to be accredited by the Louisiana Environmental Laboratory Accreditation Program at this time.
LELAP Presentations
- 2009 Louisiana Water Environment Association (LWEA)
 (5/20/09)
- LELAP Accreditation 101 (Rev 12/8/08)
Louisiana Administrative Code (Regulations): Title 33 - LELAP regulations are in Part I - Office of the Secretary, Subpart 3, Chapters 45-59
National Environmental Laboratory Accreditation Program (NELAP)
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