The 2009 rule changes document outlines revisions made to the rules of softball. Some of the key changes include:
1) Clarifying the definition of a charged conference and modifying the maximum fence distance in modified pitch.
2) Specifying requirements for approved bats, identifying additional bat deficiencies, and expanding elements of bat construction.
3) Establishing home run limits for various divisions of slow pitch softball and changing the run ahead rule for men's fast pitch and slow pitch.
4) Allowing the use of courtesy runners for ADA players and removing the disqualification penalty for an unreported substitute.