R.I. Gen. Laws § 16-23-1

A change may be made in the school books in the public schools of any city or town or regional school district by a vote of a majority of all the members of the school committee, notice of the proposed change having been given, in writing, at a previous regular meeting of the committee; provided, that no change is made in any textbook in the public schools of any city or town or regional school district more often than once in three (3) years, unless by the consent of the department of elementary and secondary education.