Only the Rookies and Mini-Minors divisions need to keep track of "Outs Pitched". The lower divisions (T-Ball and Mini-Rookies) will NOT keep track of "Outs Pitched".
The reason we keep track of "Outs Pitched" is to give more of our older players a chance to develop as pitcher. Since the PQGSA rule for the Rookies and Mini-Minors divisions is that a pitcher may not pitch more than 21 out in a week, then the scorekeeper must keep track of the "Outs Pitched" in order to follow this rule.
Remember, an "Out Pitched" is only credited to a pitcher when an out occurs while that pitcher is pitching. Therefore, an inning could end with less than 3 outs credited to a pitcher. For example, the run limit may occur before 3 outs are made. This might occur because of a lot of walks, or in the Mini-Minors division because of a stolen base. In any event, in any case where an inning ends with less than 3 outs, the pitcher should only be credited with the number of outs that occurred while that pitcher was pitching, which will be less than 3.
Another example when a pitcher might be credited with less than 3 outs after an inning is when the pitchers are switched during the inning. In this case, be sure to record the correct number of outs for each pitcher during that inning.
One final thought, if the game is called when the home team is ahead and batting, all pitching outs up to that point are recorded and count -- even if the inning does not need to be completed.