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Animal and Plant Health Inspection Service
U.S. Department of Agriculture
USDA FAQ's and resources about coronavirus (COVID-19).  LEARN MORE

APHIS-Approved Laboratories

Testing for certain types of diseases must be performed at either the NVSL or other APHIS-approved facilities. Some testing is performed only by laboratories in the National Animal Health Laboratory Network (NAHLN). Click on any of entries below to show facilities that, with the NVSL, are approved to perform the corresponding tests. Laboratories requesting approval to conduct testing (other than NAHLN) should contact the Assistant District Director for their state. See the NAHLN Web site for NAHLN membership requirements.

Name (all documents in PDF format)

African Swine Fever (NAHLN labs)
Avian Influenza (NAHLN labs)
Bovine Leukosis
Bovine Spongiform Encephalopathy (NAHLN labs)
Brucella - Ovis
Caprine PrP Genotyping
Chronic Wasting Disease (NAHLN labs)
Classical Swine Fever (NAHLN labs)
Contagious Equine Metritis
Equine Infectious Anemia
Equine Viral Arteritis
Foot-and-Mouth Disease (NAHLN labs)
Infectious Salmon Anemia (NAHLN labs)
Ovine PrP Genotyping
Newcastle Disease-Exotic (NAHLN labs)
Johne's Disease
       Milk ELISA
       Serum ELISA
Johne's Disease--organism-based methods
Johne's Disease--pooling methods
Equine Piroplasmosis
Scrapie (NAHLN labs)
Spring Viremia of Carp (NAHLN labs)
Swine Influenza (NAHLN labs)
Vesicular Stomatitis (NAHLN labs)
Viral Hemorrhagic Septicemia (NAHLN labs) 

The NVSL provides proficiency testing services for several disease testing platforms to international laboratories by request. Please note that the laboratories reviewed under this proficiency testing are not “APHIS Approved,” but rather have demonstrated compliance with ISO testing standards for the diseases under which they are listed. Click on the entries below to show facilities that have successfully completed the most recent proficiency testing panels for each disease with the NVSL.

Name (all documents in PDF format)

Brucella abortus  International
Johne's Disease--serology-International
Johne's Disease--organism-based methods-International
Johne's Disease--pooling methods-International
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