Originally Posted by arcane

Is mandatory, even if undocumented. Any guy applying for FAFSA, it automatically signs you up. But you dont have to after 25 yrs of age.

They talk about it in your senior year of high school and get a letter once you turn 18 years of age. Surprised you were not aware of it. You probably already signed up back in high school without even knowing. Verify if that is the case.

FYI "Men who have registered remain eligible for federal student aid, most federal jobs, and federal job training. Male non-citizens living in the U.S. who are 18 through 25 must register to remain eligible for citizenship"
https://www.sss.gov/RegVer/wfRegistration.aspx

so if you dont sign up, you won't be able to become a citizen in the future. My brother became a USC two years ago, and they asked for his Selective Service number.