NAHLN Contact Information

NAHLN Contact Information

NAHLN Program Office

The NAHLN Program Office is located in Ames, Iowa.  Normal business hours are from 8:00 AM to 4:30 PM Central Time, Monday through Friday.

Periodically, our normal business hours are affected by inclement weather or a federal holiday. If this is a concern, please visit either the Ames ARS-APHIS Operational Status webpage for our current operational status, or see OPM’s website for a listing of observed federal holidays.

NAHLN Program Office

USDA/APHIS/VS/NVSL
1920 Dayton Avenue (packages)
P.O. Box 844 (letters)
Ames, IA 50010
NAHLN Phone: (515) 337-7731
Fax: (515) 337-7397

NAHLN Email address: nahln@aphis.usda.gov

Diagnostic Testing – NVSL:

If you have questions about submitting diagnostic samples or a particular type of testing, click here for a list of NVSL contact numbers sorted by test performed. This list is not exhaustive; for testing not listed, see the NVSL Diagnostic Catalog and call the main number for the responsible laboratory. NVSL’s main laboratory numbers can be found here.  

NAHLN Inquiries

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