From the PIAA website -

Sportsmanship is probably the clearest and most popular expression of morals. Sportsmanship is a thing of the spirit. It is timeless and endless, and we should strive to make it universal to all races, creeds, and walks of life.  - The Discovery of Morals

The following message is read by PIAA Officials to Team Coaches and Captains prior to each event:

"PIAA requires all registered sports' officials to enforce the sportsmanship rules for coaches and contestants. Actions meant to demean opposing players, team, spectators and officials are not in the highest ideals of interscholastic education and will not be tolerated. Let today's contest reflect mutual respect. Coaches please certify to the umpire that your players are legally equipped and uniformed according to NFHS rules. Good luck in today's contest."