NCAA rules for college football appear to be similar to those used by the NFL. The physical characteristics of each are the same. The differences come in the markings on the surface. The most visible exceptions are that the NCAA requires two one-inch white stripes and prohibits professional football league logos.
Rule 2. Section 1. The Ball
The Ball must be a “Wilson,” hand selected, bearing the signature of the Commissioner of the League, Roger Goodell. The ball shall be made up of an inflated (12 1/2 to 13 1/2 pounds) urethane bladder enclosed in a pebble grained, leather case (natural tan color) without corrugations of any kind. It shall have the form of a prolate spheroid and the size and weight shall be: long axis, 11 to 11 1/4 inches; long circumference, 28 to 28 1/2 inches; short circumference, 21 to 21 1/4 inches; weight, 14 to 15 ounces.
The Referee shall be the sole judge as to whether all balls offered for play comply with these specifications. A pump is to be furnished by the home club, and the balls shall remain under the supervision of the Referee until they are delivered to the ball attendant just prior to the start of the game.
NCAA College Rules and Interpretations – www.dfoa.com/attachments/article/69/2013-14_Football_Rule_Book.pdf
Photo – http://www.komu.com/news/assault-on-mo-football-field-draws-probation/