For general information about NNSA, please feel free to contact us:

By Mail: 
National Nuclear Security Administration
U.S. Department of Energy
1000 Independence Ave., S.W.
Washington, DC 20585
 
By Phone:
1 (800) DIAL-DOE (1-800-342-5363) or (202) 586-5000 (Main Switchboard)
Department of Energy Phone Directory
Hearing and/or Speech Impaired Telephone Communications

By E-mail:
For technical problems or questions regarding NNSA’s website, please e-mail: NNSA.Contact@nnsa.doe.gov