20-A M.R.S. §4503: Secondary school organizations

1. Two years. A secondary school shall include not fewer than 2 consecutive grades from grades 9 to 12.

2. Junior high school or middle school. A junior high school or middle school is a school that maintains a diversified program of studies of 2 or more consecutive grades from grades 6 to 9, which meets basic school approval and applicable curriculum requirements. A junior high school or middle school may be maintained in connection with or as part of an approved secondary school.