(a) CERTIFICATE OF CLERK; AMENDMENT. Within twenty days after the petition is filed, the City Clerk-Treasurer 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 Petitioner's Committee by registered mail. A petition certified insufficient for lack of the required number of valid signatures may be amended once if the Petitioner's Committee files a notice of intention to amend it with the City Clerk-Treasurer within two days after receiving the copy of his/her certificate and files a supplementary petition upon additional papers within ten 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, and within five (5) days after it is filed the City Clerk-Treasurer shall complete a certificate as to the sufficiency of the petition as amended and promptly send a copy of such certificate to the Petitioner's Committee by registered 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 Petitioner's Committee does not elect to amend or request City Council review under subsection (b) of this section within the time required, the City Clerk-Treasurer shall promptly present his/her certificate to the City Council and the certificate shall then be a final determination as to the sufficiency of the petition.
(b) COUNCIL REVIEW. If a petition has been certified insufficient and the Petitioner's Committee does not file notice of intention to amend it, or if an amended petition has been certified insufficient, the Committee may, within two days after receiving the copy of such certificate, file a request that it be reviewed by the City Council. The City Council shall review the certificate at its next meeting following the filing of such request and approve or disapprove it, and the City Council's determination shall then be a final determination as to the sufficiency of the petition.
(c) COURT REVIEW; NEW PETITION. A final determination as to the sufficiency of a petition shall be subject to court review. A final determination of insufficiency, even if sustained upon court review, shall not prejudice the filing of a new petition for the same purpose.