Except as hereinafter added to, deleted, modified or amended, there is hereby adopted as the Property Maintenance Code of the City of Missouri Valley that certain code known as the International Property Maintenance Code, 2015 Edition, as published by the International Code Council, and the provisions of said Property Maintenance Code shall be controlling in maintaining minimum requirements and standards of structures and properties within the corporate limits of the City and shall be known as the Missouri Valley Property Maintenance Code.