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U.S. Department of State - Great Seal

U.S. Department of State

Diplomacy in Action

Contact Us

A personnel security specialist responds to calls at the Customer Sevice Center.For more information on the State Department's security clearance process, or to inquire into the status of your security clearance, you may e-mail the Office of Personnel Security and Suitability at


Talk with a personnel security specialist at our Customer Service Center between the hours of 8:00 a.m. and 6:00 p.m., EST, by dialing toll free 1-866-643-4636 (1-866-643-INFO) or 571-345-3186.

Send correspondence to one of the addesses below:


Mailing Address:
Department of State


Washington , DC 20522-2008

Federal Express Address

U.S. Department of State

DS/SI/PSS, 10th Floor

1801 North Lynn Street

Arlington, VA   22209


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