National Federation of State High School Associations

The National Federation of State High School Associations (NFHS) is the body that writes the rules of competition for most high school sports and activities in the United States. Most high schools, whether public or private, belong to their state's high school association; in turn, each state association belongs to the NFHS. Over 17,000 high schools belong to associations that are members of the NFHS. NFHS's headquarters are located in White River State Park in Indianapolis, Indiana.