The quantities of unmixed plosophoric compounds commonly utilized in the field shall be stored in a suitable container which provides adequacy of security against theft or loss. Adequate security shall mean that which is equivalent to the security provided for explosive materials. Plosophoric compounds may be stored in a building, an igloo or army-type structure, a tunnel, a dugout, a bin, a box, a trailer, a semi-trailer or other mobile facility.
Cal. Code Regs. Tit. 19, § 1584.3