What is 13 S in the UFS?

In: College Applications and Entrance Requirements [Edit categories]

Answer:

13 stripe in the United States flag?

Related answers:

What is 13 s on a s s? Huh?
What is 13 s on s s? a race car
What is 13 s on the s s b? 13 Stripes on the Star Spangled Banner
What is 13 S on the U S F? 13 stripes on the United States flag

Can you answer these?