A turnover results when:

If the thrower accidentally drops a live disc or a disc in play without defensive interference and it contacts the ground before the thrower regains possession, it is considered a turnover. If the thrower regains possession of an accidentally dropped disc before it contacts the ground without another player touching the disc, that possession is considered continuous.

A pass is intercepted if a defensive player obtains possession of the disc, but if the defender accidentally loses possession of the disc before or during ground contact related to the catch, the pass is considered incomplete rather than intercepted.

The following actions result in a turnover and a stoppage of play: