When must all men register for the Selective Service?

All men are required to register for the Selective Service when they reach the age of eighteen. This registration is a legal requirement in the United States and serves as a mechanism for the government to maintain a list of individuals eligible for military conscription in the event of a national emergency or war. The registration process is designed to be straightforward, and it is typically completed online or via mail.

Registering at this age ensures that the Selective Service has current information about potential service members. It is important to note that while individuals are encouraged to register before their eighteenth birthday, they must do so within thirty days of turning eighteen. Failing to register can have various repercussions, including ineligibility for federal student financial aid and certain government jobs.