Rules - NFHS - PIAA


Pennsylvania high school softball follows the rulebook established by the National Federation of State High School Associations (NFHS). Rule differences between NFHS and Amateur Softball Association (ASA) softball can be downloaded here.

The Pennsylvania Interscholastic Athletic Association (PIAA) directly oversees high school softball in the Commonwealth, including classifying schools by enrollment size, rules interpretation, and post-season (District and State Tournament) play.