Addition to softball rules - No leading, leaving the base early

This has been added to the section of the rules titled RUNNING:

7. Runners are not permitted to leave the base before a subsequent batter hits the softball.
a) Base runners are not permitted to leave the base they are on until the pitched ball makes contact with the batter’s bat.
b) If a base runner comes off their base prior to the batter making contact with the pitch, the base runner’s team will receive a warning as long as the batter did not put the ball in play at the time the runner left their base early.
c) If the team receiving a warning has a base runner leave their base a second time, then the runner who left the base early will be called out.
d) Any future base runners that leave their base early will also be called out.
e) If a base runner clearly leaves their base prior to contact being made with the bat and the ball is put in play, then play is live and will continue BAU, but the base runner who left early will be declared out upon completion of the batter’s turn at bat (ie. All other runners who did not leave early can still advance and the batter can still attempt to reach base safely unless the auto out for leaving the base early is the 3rd out of the inning).