Zoning map amendments may be initiated by the city or one or more property owners. Applications from property owners must include valid authorization from all of the subject property owners involved in the application. (Ord. 6779 § 1, 2020; Ord. 6532 § 30, 2014; Ord. 6287 § 2, 2010; Ord. 6198 § 3, 2008; Ord. 4840 § 1, 1996; Ord. 4304 § 1(46), 1988; Ord. 4229 § 2, 1987.)