Under current law, all male US citizens, even those living abroad, are required to register with the US Selective Service System within 30 days of their 18th birthday or within 30 days of arriving in the US as an immigrant.
There are several ways to register including:
- Register online here
- Print out the registration form (PDF, Download Adobe Reader), complete it, and mail it to the address on the form
For more information on the Selective Service System, go to their website at https://www.usa.gov/selective-service