By this chapter the city council authorizes the mayor to execute any annexation agreement which has been approved by the city council. Such execution shall occur only upon completion of all necessary preparatory steps as evidenced by certification to that effect by the code administrator. No annexation ordinance shall be submitted to the official newspaper of the city for publication unless and until an annexation agreement has been executed and recorded in the office of the county recorder as provided by law or unless said annexation agreement requirement has been waived. In extraordinary circumstances the city council may waive the requirement that an annexation agreement be completed prior to ordinance adoption and publication by formal council action. (Ord. 133, 4-13-2005)