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 abroad assist the Selective Service System with its registration program abroad. Overseas registrants are encouraged to register with the Selective Service website On-Line Registration. Where online registration is not available, the nearest U.S. embassy or consulate can be of assistance. Current brochures and guidance are also available on the Selective Service website.