UT Austin admissions criteria

Hello,

Forgive me for posting this as a question that may have already been asked (I couldn’t find it), but from what I heard, the biggest factor that is considered for admissions by UT Austin is HS Class Rank. Is this true? And if it is, what if your HS doesn’t rank?

Thank you

https://sps.austin.utexas.edu/sites/ut/IRRIS/_layouts/15/WopiFrame.aspx?sourcedoc=/sites/ut/IRRIS/CDS/IMA_PUB_CDS_2015_AY.pdf&action=default

Section C7

If you are from OOS, UT is a high reach for even very well qualified applicants, your GPA and SAT from your other thread would mean a complete waste of the application fee. Rank applies to Texas schools for auto admission.

Thank You