1. In absence of related SA standards and IFC, and according to the CBR values declared by IC, it is mandatory that IC meets or exceeds the manufacturers recommendations as follows;//a. A minimum Overlap of 300mm shall be maintained for geo textile between adjacent sheets or rolls. //b. A minimum overlap of 300mm shall be maintained for geo grid between adjacent sheets or rolls.// 2. Geogrid and geotextile shall not be subjected to vehicluar traffic at speeds more than 10kmph. //3. Only rubber tired vehciles are allowed to move directly on top of Geogrid and geotextile. Any abrupt starts and stops or turning on top of the grid or textile shall be avoided.//Tracted vehicles or compaction equipment can only be used after a lift thickness of 300mm has been achived on top of the geogrid or geotextile.// Any waving occuring in the textile or the grid shall be removed before or during backfil.