Review Chapter Structure

Chapter Divisions

Tri-M® is composed of Senior and Junior chapters — Senior Division is grade levels 10, 11, and 12 and Junior Division is grade levels 6, 7, and 8.

Ninth grade may be included in either a Senior or Junior chapter depending on the school structure.

Schools with grades 6-12 in one building may house both a Junior and Senior chapter, but both chapters must be registered in order to have all grade levels participate.

View the Student Membership Requirements.