Oregon Revised Statutes Cities § 221.230

(1) Except as provided in subsection (3) of this section, no election on a city measure referred by the city governing body or for a city office shall be held on any date other than:

(2) Except as provided in subsection (3) of this section, no election on a city measure other than a city measure referred by the city governing body shall be held on any date other than:

(3) An emergency election may be held on a date other than those provided in subsection (1) or (2) of this section if the city governing body by resolution finds that an emergency exists that will require an election sooner than the next available election date to avoid extraordinary hardship to the community. A determination under this subsection as to whether an emergency exists is within the sole discretion of the city governing body.

(4) A city governing body, with adequate notice, shall hold a public hearing, on a date other than a regularly scheduled council meeting, for the purpose of making findings substantiating the fact that an emergency exists before scheduling an election on a date other than those specified in subsection (1) or (2) of this section.

(5) Notice of a city's intent to hold an emergency election shall be filed with the county elections authority no later than 47 days preceding the desired election date. At the time the notice of election is given to the county elections authority, the city shall also file with the elections authority a certified copy of the ballot title and a copy of the resolution and findings adopted by the city governing body to authorize the emergency election as required under subsection (4) of this section.