The authority that local school officials and state athletic and activity associations have over extracurricular activities is the subject of this survey of reported cases beginning in 1980. Legal developments are discussed in the areas of general transfer rules, transfers and private schools, ineligibility based on nonschool incidents, team and school penalties, participation by handicapped athletes, ineligibility based on age or length of attendance, and a number of unrelated miscellaneous cases. Although varying widely in facts and legal arguments, these cases illustrate that courts leave decisions to the vast discretion of schools and activity organizations. (MLF)