(1) Upon completion of the canvass of votes on a measure submitted pursuant to this chapter, the mayor shall issue a proclamation:
(a) Recapitulating the vote on the measure; and
(b) If the majority of votes cast on the measure were in favor of the measure, announcing the effective date of the legislation in accordance with section 2.987 of this code.
(2) The city recorder shall give public notice of the proclamation by release to the media or by posting a copy thereof at the city hall.
(3) The proclamation shall be retained with the measure in the office of the city recorder.