Every warehouse used for the storage of blasting agents shall be under the supervision of a competent person who shall be not less than 21 years of age.
Cal. Code Regs. Tit. 19, § 1572.70
Every warehouse used for the storage of blasting agents shall be under the supervision of a competent person who shall be not less than 21 years of age.
Cal. Code Regs. Tit. 19, § 1572.70