Any petition submitting a proposed ordinance to the Council as provided in this Article shall comply with the provisions of the Charter and the City Election Code. The following shall apply to all initiative petitions:
(a) Prior to the circulation of any initiative petition, the proponents of the petition shall submit a draft of the petition to the City Clerk, setting forth the proposed ordinance in full. In accordance with procedures contained in the City Election Code, the City Attorney shall prepare an official title and summary of the petition provisions of the proposed ordinance. The official title and summary shall be incorporated into and appear on all copies of the initiative petition circulated for signatures and filed with the City Clerk.
(b) All names signed to a petition must have been secured not more than 120 days prior to the date of filing. Any signature affixed outside of this time period shall not be counted in determining the sufficiency of the petition. To qualify for presentation to the Council, an initiative petition shall be signed by registered voters of the City in a number equal to 15% of the total number of votes cast for all candidates for the office of Mayor at the last general municipal election, or primary nominating election, at which a Mayor was elected prior to the filing of the petition. In order to be accepted for filing with the City Clerk, the petition must on its face purport to have the requisite number of signatures appended to it.
(c) The City Clerk shall examine the petition and determine whether it contains the requisite number of signatures of registered voters, in accordance with procedures contained in the City Election Code. When the City Clerk has completed the examination of the petition, the Clerk shall prepare a dated certificate showing the result of the examination, and shall notify the sponsors of the petition of either the sufficiency or insufficiency of the petition without delay.
(d) The City Election Code shall govern the process by which and circumstances under which an insufficient petition may be supplemented, the process by which a certificate of insufficiency may be contested, and the process by which and circumstances under which the signer of a petition may withdraw his or her name.
(e) If, by the certificate of the City Clerk, the petition is shown to be sufficient, the City Clerk shall present the petition to the Council without delay. The sufficiency or insufficiency of the petition shall not be subject to review by the Council.
(f) No amendments, changes, alterations or corrections of any kind, clerical or otherwise, shall be permitted to be made in any petition after it has been filed with and approved by the City Clerk.