(1) The question whether subdistricts should be established for the purpose of nominating or electing one or more board members may be submitted at an election called under ORS 198.866 and 198.867, or at an election on merger or consolidation called under ORS 198.903.
(2) The following provisions of ORS 478.225 (4) apply to an election on annexation, merger or consolidation when the question of establishing subdistricts is submitted at that election:
(a) The requirements applicable to the ballot title.
(b) The provision for a map of the proposed subdistrict boundaries.