NAHLN Laboratories

Last Modified: November 06, 2024

This page provides important information for existing NAHLN labs, including SOP lists and maps of current NAHLN laboratories. The lists and maps are updated as changes occur. Information on joining the NAHLN is also provided below.

US map showing locations and designations of all NAHLN laboratories

Find Approved NAHLN Labs

View information on current NAHLN laboratories by State, designation, or disease testing. For a list of all NAHLN labs, visit All Approved Labs or view the full list as a PDF (291.19 KB).

Labs by State

Use the dropdown menu to see a list of NAHLN labs in each State.

NAHLN Laboratories Contacts

Labs by Designation

Use the dropdown menu to see NAHLN labs by designation level. You can also view these lists as PDFs: Affiliate (75.07 KB), Level 1 (299.88 KB), Level 2 (144.13 KB), or Level 3 (75.61 KB).

NAHLN Laboratories Contacts

Labs by Disease

Learn More About NAHLN Laboratories

For more information on NAHLN membership requirements or how your laboratory can join, please contact the NAHLN Program Office.

Read more about the approval process (344.16 KB)

NAHLN Document List

See the current list of NAHLN Documents.
NAHLN SOP Deviation Request Form and Instructions

(PDF, 284.24 KB)

Download a copy of the current Deviation Request form and instructions for submitting to the NAHLN Program Office.

All proficiency tests for the NAHLN are administered through the National Veterinary Services Laboratories' (NVSL) reference laboratories. 

View the current list of proficiency test panels available from NVSL

Information for commercial manufacturers of reagents and testing platforms on minimum validation requirements for acceptance into the NAHLN. Additional approvals by the NVSL, VS' Center for Epidemiology and Animal Health, and the appropriate commodity program may be required prior to deployment of new test methods to NAHLN laboratories.

For questions regarding this process, contact the NAHLN Program Office at nahln@usda.gov. For information on test panel availability, contact nvsl.info@usda.gov.

NAHLN Assay Approval (435.81 KB)

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