J110.1.1 Planting of Slopes. The Building Official may waive the planting of any slope less than 5 feet in vertical height. An automatic irrigation system shall be installed for planted slopes unless recommended otherwise in the preliminary soils report or waived by the Building Official. If required by the Building Official, a recommendation for types of planting materials shall be obtained from a Landscape Architect. The Landscape Architect shall, prior to final inspection, provide the Building Official with a statement that the planting has been done in accordance with his recommendations approved by the Building Official.