Where practical, the storage place shall be at least 25 feet from any timbers. Where it is necessary to store oils or greases nearer than this distance to mine timbers, such timbers shall be made fire resistant.
Should the amount of oil or grease stored on any 1 level exceed 60 gallons, it shall be stored in a manner acceptable to the Division.
Cal. Code Regs. Tit. 8, § 7065