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the rock is determined not to be needed for support or stability of the concrete <br />floor slab. <br />4. For driveways, walks, patios and other flatwork which will not be enclosed at a <br />later date. <br />5. Where approved based on local site conditions. <br />In all slabs under habitable spaces, a minimum of 4 inches (102 mm) of crushed rock <br />capillary water barrier shall be provided under the minimum 10 mil vapor retarder. The <br />vapor barrier shall be protected by a minimum of 2 inches (51 mm) of sand, or <br />equivalent protection. <br />20 08 130 Table 2306 3 (3) amended — Allowable Shear for Wind or Seismic Forces <br />For Shear Walls of Lath and Plaster or Gypsum Board Wood Framed Wall Assemblies. <br />Table 2306.3.(3) is amended to read as follows: <br />