Columbia Effect of Vote ordinance (Charter § 135)

If a majority of the voters voting on a proposed initiative ordinance or referred ordinance shall vote in favor thereof, it shall thereupon be an ordinance of the city, and shall, unless otherwise specified, become effective as indicated in Section 15 of this charter. No such ordinance shall be amended or repealed for six (6) months, except by unanimous vote of the council. A referred ordinance which is not approved by a majority of the voters voting thereon shall thereupon be deemed repealed. If conflicting ordinances are approved by the voters at the same election, the one receiving the greatest number of affirmative votes shall prevail. No election under the initiative or referendum procedure shall be set aside because of any defect in the petitions.