The NPC Plan, first adopted in 1936, outlines the mission of the NPC to "procure the election of the Trustees of the Bronxville School District in a non-partisan manner .... In choosing such candidates, their party affiliations shall be disregarded and consideration given solely to their qualifications for the position."

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The NPC Rules of Procedure in Section IV, 14 describes the criteria to be applied in selecting Trustees as follows:​ "It is the policy of the Committee that a nominee for Trustee shall be an individual whose educational or professional background and/or volunteer experience will enhance the candidate’s effectiveness and who will make a substantial contribution to the deliberations of the Board. The candidate must be knowledgeable about the needs of the Bronxville School and community and must be a registered voter in the Bronxville, N.Y. election district. Candidates must be aware of the heavy time requirements for service on the Board of Trustees, and prepared to make allowances in their vocational and personal commitments so that they will be able to attend all meetings and fulfill committee assignments."