The Zoning Administrator may allow a land use to be considered as a permitted or special use which, though not contained by name in a zoning district list of permitted or special uses, is deemed to be similar in nature and clearly compatible with the listed uses. The Zoning Administrator shall consult the Standard Industrial Classification (SIC) code to determine similarity or compatibility. However, such non-listed uses shall not be considered for review and approval until the application for such use has been reviewed by the City Attorney. All non-listed uses which are tentatively approved by the Zoning Administrator shall be added to the appropriate use list by ordinance at the time of periodic updating and revision.