188.8.131.52 Foundations for and Anchoring of Aboveground Storage Tanks
Exception: Single wood timber supports (not cribbing), laid horizontally, shall be permitted to be used for outside aboveground tanks if not more than 12 in. (300 mm) high at their lowest point.
Exception No. 1: Steel saddles do not need to be protected if less than 12 in. (300 mm) high at their lowest point.
Exception No. 2: At the discretion of the AHJ, water spray protection in accordance with NFPA 15 or NFPA 13, is permitted to be used. [30:184.108.40.206]