Almost all male U.S. citizens aged 18 through 25, regardless of place of residence, must register with the Selective Service.
Dual nationals (American citizens who also hold a second nationality) also must register, regardless of place of residence.
U.S. embassies and consulates overseas assist the Selective Service System with its registration program abroad. At this time, the Selective Service System online registration site is temporarily unavailable for overseas registrants. For security reasons, overseas registrants should complete the SSS Registration Form (PDF 98 KB) and mail it to the Selective Service System at the following address:
Selective Service System
Registration Information Office
P.O. Box 94739
Palatine, IL 60094-4739