RI Gen. Laws §16-2-2
Town schools required School year Location Kindergartens.
(a) Except as herein otherwise specifically provided, every town shall establish and maintain for at least one hundred eighty (180) days annually exclusive of holidays a sufficient number of schools in convenient places under the control and management of the school committee and under the supervision of the board of regents for elementary and secondary education. In lieu of convenient location the school committee may provide transportation for pupils to and from school in accordance with the provisions of chapter 21 of this title.
(b) Beginning in September, 1969, school facilities shall include a sufficient number of kindergartens; provided that the requirement for kindergartens may be waived until September, 1970, in the public interest by the commissioner of elementary and secondary education as to any school system upon application of the school committee having control of the system.