Section 1572.10 - StorageBlasting agents and oxidizers used for mixing of blasting agents shall be stored in the manner set forth in this Section.
(a) Blasting agents or ammonium nitrate, when stored in conjunction with explosives, shall be stored in the manner set forth in Article 4 for explosives. The mass of blasting agents and one-half the mass of ammonium nitrate shall be included when computing the total quantity of explosives for determining distance requirements.(b) Semi-trailer or full-trailer vans used for highway or on-site transportation of the blasting agents are satisfactory for temporarily storing these materials, provided they are located in accordance with the Table of Distances with respect to inhabited buildings, passenger railways, and public highways and according to the Table of Separation Distances of Ammonium Nitrate and Blasting Agents from Explosives or Blasting Agents with respect to one another. Trailers shall be provided with substantial means for locking, and the trailer doors shall be kept locked, except during time of placement and removal of stocks of blasting agents. Trailers shall be secured to prevent unauthorized movement.Cal. Code Regs. Tit. 19, § 1572.10