Which organization is responsible for regulating high school sports in Indiana?

The Indiana High School Athletic Association (IHSAA) is the governing body responsible for regulating high school sports in Indiana. It establishes the rules, policies, and guidelines that schools must follow to ensure fair play and safety in athletic competitions. The IHSAA also organizes tournament events across various sports and coordinates the statewide schedule for high school athletics, making it the primary authority for high school sports in the state.

While the NCAA (National Collegiate Athletic Association) oversees college athletics and the NFHS (National Federation of State High School Associations) provides national rules and guidelines for high school sports, they do not specifically regulate high school athletics within individual states like Indiana. The NASSA does not pertain to high school sports and is not a recognized body in this context. Therefore, the IHSAA is the correct answer, as it is directly responsible for the administration of high school sports in Indiana.