To eliminate deferment abuses the Selective Service System adopted a lottery .
The Selective Service System is an independent agency of the United States government that has information about those who may be subject to military conscription. The Selective Service Act of 1948 was enacted in June of 1948.
All male-at birth U.S. citizens and male immigrant non-citizens, who are between the ages of 18 and 25 are compelled by law to have registered within 30 days of their 18th birthdays.