MCS is a non-profit organization governed by a board of trustees whose members serve for renewable three-year terms. The MCS board generally follows the National Association of Independent Schools' Principles and Practices for Independent School Boards and is governed by by-laws that are periodically revised to meet changing needs.
Nominations for trustees may be submitted to the Committee on Trustees at any time by any member of the MCS community; volunteers with specific professional experience or expertise are also sought for standing committees, which include Finance, Development, Trustees, and Site. The head of school and two faculty representatives serve on the board as ex-officio members.








