"Fans can get involved by having student-athletes promote their business, engage in non-profit activities, or hire them for appearances"

Except not:

Tobacco, Alcohol, Controlled Substances (including marijuana), adult entertainment, casinos or gambling, beverages (other than Pepsi), and the following apparel companies: Nike (including Jordan Brand), Reebook, Adidas, New Balance, and Lululemon.

BYU Probably similar (except for the Pepsi and Nike clauses)