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Send relevant correspondence to the Office of National Security by mail. If there is an emergency, call 9-1-1.

Office of National Security
U.S. Department of Health and Human Services
200 Independence Avenue, SW
Washington, DC 20201

Content last reviewed June 22, 2020
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HHS Headquarters

200 Independence Avenue, S.W.
Washington, D.C. 20201
Toll Free Call Center: 1-877-696-6775​