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Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Contact Us

Let Us Know How We Can Help

Email Us

Have a question about registration? Email  or (en Español).

Have a general question? Email us at

Call Us

If you need to discuss matters that involve Personally Identifiable Information, call us Monday – Friday: 9:00 AM – 5:00 p.m. EST, except Federal holidays.

888-655-1825 Toll-free (para Español, oprima dos)

Mail Us

To respond to a letter and provide documentation, please mail to:

Selective Service System
Data Management Center
P.O. Box 94638
Palatine, IL 60094-4638

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Personally Identifiable Information Disclaimer

Personally Identifiable Information (PII) is your social security number, date of birth and address. For security reasons, we can only respond to questions that contain your PII over the phone. Do not email us your social security number.