The principal of the 1990s must have a substantial understanding of school law. This paper presents findings of a study that explored West Virginia public school principals' knowledge of school law. A questionnaire mailed to 136 secondary school principals in West Virginia during spring semester of the 1995-96 school year elicited an 88 percent response rate. Findings indicate that the principals had an average preparation in school law. Overall, respondents mastered 73 percent of the material. Principals in large countries scored above average (80 percent) on the Legal Knowledge Index. Finally, a positive relationship was found to exist between legal knowledge and selected independent variables. (Contains 4 tables and 13 references.) (LMI)