Applications for Special Use Permits for those specific uses identified in Sections 4-1-2 and 4-1-3 shall be processed in the same manner as an application to amend the boundaries of a zoning district as set forth in Section 1-3-1 (Amendments) as supplemented by Section 1-3-4 (Special Use Permits). Amendments to the Special Use shall be processed in the same manner as the initial application.