Each ordinance shall have but one (1) subject, the nature of which is clearly expressed in the title. Whenever possible, each ordinance shall be introduced as an amendment to this Code or to an existing ordinance, and in such case, the title of the sections to be amended shall be included in the ordinance. (Ord. No. 2003-15, §§ 1, 2, 11-4-03. 1976 Code § 2-5-2)