NCAA 2-51 Interference
SECTION 51. The act of an offensive player, umpire or nongame person who interferes with; physically or verbally hinders; confuses; or impedes any fielder attempting to make a play.
See specific rule sections for action to be taken: batter (6-2-d, 6-3-b, 7-11-f, k, l and n, 8-2-e, 8-5-l and p); batter-runner (7-11-l, m, o, p and q, 8-2-g, 8-5-e, o, p and q); runner (6-2-e and g, 6-4-b, 7-11-r and s, 8-2-g, 8-3-f and g, 8-5-d and k); coach (6-2-c, 8-3-j, 8-5-f and g); nongame personnel (4-8, 6-4-a, 7-11-t, 8-3-n); offensive team (5-2-d, 8-5-h and q); umpire (6-2-f, 6-3-a).
Note 1: If the umpire declares the batter, batter-runner or a runner out for interference, all other runners shall return to the last base that was touched legally at the time of the interference, unless otherwise provided by these rules. The ball is dead.
Note 2: If the batter-runner has not touched first base at the time of interference, all runners shall return to the base last occupied at the time of the pitch. If there was an intervening play made on another runner, all runners shall return to the base last touched at the time of interference.
Note 3: If a fielder has a chance to field a batted ball, but misplays it and while attempting to recover it, the ball is in the fielder’s immediate reach and the fielder is contacted by the base runner attempting to reach a base, interference shall be called.
Note 4: If a fielder has a chance to field a batted ball, but misplays it and must chase after the ball, the fielder must avoid the runner. If contact occurs, obstruction shall be called.
Note 5: If a fielder chases after a deflected batted ball ahead of a runner’s arrival and is in the act of picking up the ball (fielding) when contact is made by an offensive player, interference is the call. If the fielder is chasing after the deflected batted ball and contact is made between the two players, obstruction should be the call.
Note 6 : No preceding or succeeding runner shall advance on an interference play and a runner is considered to occupy a base until he legally has attained the next succeeding base.