Columbia Petitions ordinance (Charter § 129)

All petition papers comprising an initiative or referendum petition shall be assembled and filed with the City Clerk as one instrument. Every petition paper shall contain the full text of the measure proposed or referred, but the signatures to the petition need not all be appended to one paper. In order for a signature to be valid, it must be accompanied by the following information, legibly written: the name of petitioner, the address of petitioner, and the date petitioner signed the petition. The circulator of each such paper shall make oath before an officer competent to administer oaths that the circulator believes each signature appended to the petition to be the genuine signature of the person whose name it purports to be, that the circulator believes each such signer to be a legal voter, and that all signatures were affixed in the presence of the circulator.