a. Certificate of Clerk. Within twenty (20) days after the petition is filed, the City Clerk shall complete a certificate as to its sufficiency, specifying, if it is insufficient, the particulars wherein it is defective and shall promptly send a copy of the certificate to the petitioners' committee by certified mail. A petition certified insufficient for lack of the required number of valid signatures may be amended once, if the petitioners' committee files a notice of intention to amend it with the City Clerk within two (2) days after receiving the copy of the Clerk' certificate, excluding weekends and holidays, and files a supplementary petition upon additional papers within ten (10) days after receiving the copy of such certificate. Such supplementary petition shall comply with the requirements of subsections b and c of Section 6.3. Within five (5) days after it is filed, the City Clerk shall complete a certificate as to the sufficiency of the petition as amended and promptly send a copy of such certificate to the petitioners' committee by certified mail, as in the case of an original petition. If a petition or amended petition is certified sufficient, or if a petition or amended petition is certified insufficient and the petitioners' committee does not elect to amend or request Council review under subsection b of this Section within the time required, the Clerk shall promptly present the certificate to the Council and the certificate shall be a final determination as to the sufficiency or insufficiency of the petition.
b. Council Review. If a petition has been certified insufficient and the petitioners' committee does not file notice of intention to amend it or if an amended petition has been certified insufficient, the committee may, within two (2) days after receiving the copy of such certificate, excluding weekends and holidays, file a request that it be reviewed by the Council. The Council shall review the certificate at its next meeting following the filing of such request and approve or disapprove it. The Council's decision shall then be the final determination as to the sufficiency or insufficiency of the petition.
c. Court Review: New Petition. A Council determination as to the sufficiency of a petition shall be subject to court review. Council determination of insufficiency, even if sustained upon court review, shall not prejudice the filing of a new petition for the same purpose.