(1) Except as provided in ORS 255.400 to 255.424, a district school board may increase the number of board members from five members to seven members on its own motion, or the district school board:
(a) May submit the question to the electors of the school district; or
(b) Shall submit the question to the electors of the school district when a petition is filed as provided in this section.
(2) Subject to ORS 332.118, a petition filed under this section shall be prepared, circulated and filed as provided for an initiative petition in ORS 255.135 to 255.205.