All preliminary plats of subdivision submitted to the city of Spring Valley for approval must contain a certification by a licensed engineer indicating that the preliminary plat is in compliance with the provisions of the Spring Valley, Illinois, land development code. For resubdivisions of adjoining lots where no new roads, utilities or easements are required, the provision for engineering certification contained in this chapter can be waived by recommendation of the Spring Valley planning commission and approval of the recommendation by the Spring Valley city council. (Ord. 1370, 3-3-2008)