Article Title: Who Must Register with Selective Service? Individuals who are born female and changed their gender to male are not required to register.
Article Excerpt: "...Almost all men ages 18-25 who are U.S. citizens or are immigrants living in the U.S. are required to register with Selective Service. Citizens must register within 30 days of turning 18. Immigrants must register within 30 days of arriving in the U.S. ...exemptions for transgender people: Individuals who are born female and changed their gender to male are not required to register. ..."
Reference Source: www.usa.gov