Three recent federal court decisions dealt with the use of public university and public school facilities by student groups for religious activities. In "Widmar v. Vincent," the United States Supreme Court decided that the University of Missouri at Kansas City was not justified in its denial of permission to a registered student religious group to use its facilities for meetings. However, in two other cases, which the Supreme Court chose not to hear, circuit courts of appeal decided that regulations preventing similar groups from using public high school facilities are justified. The courts' use of the concept of "impressionable youth" to distinguish a "public forum" in a university from an activity meeting in a public school is examined. A discussion of difficulties that university and school administrators may face in applying these decisions to their institutions concludes this chapter. (MLF)