A school committee of any city, town, or regional school district may authorize the prepayment of tuition for a period not exceeding three months to any approved private school or approved program source which a student is attending under the provisions of chapter seventy-one B, and the city, town or regional school district treasurer shall be required to approve and pay such monies in accordance with the authorization of the school committee.
Mass. Gen. Laws ch. 71, § 71D