All male applicants must be registered with Selective Service, or have a qualified exemption, to receive federal student aid. This flag shows the results of a match conducted with the Selective Service database on all male applicants.

The ISIR codes and their meanings are as follows:

blank Record not sent to Selective Service.
Y Match conducted. Applicant is registered.
N Match conducted. Student is not in Selective Service database.
T Match conducted. Student is temporarily exempt since it is more than 30 days until his 18th birthday.