the U.S. federal agency that facilitates the mobilization of military forces by requiring the registration of males between the ages of 18 and 26 years.
Abbreviation: SSS.
Selective Service System in Culture
Selective Service System definition
The system used in the United States to draft young people into armed service. Though the United States at present has no draft, young men are required by law to register with the Selective Service when they reach the age of eighteen.