§ 33.192. Storage and handling.

 (a)  General requirement. The manner of storing and handling dynamite, electric blasting caps or detonators, or other explosives at or in a cavern shall be in accordance with the specifications contained in Chapter 5, Subchapter D (relating to explosives).

 (b)  Location of magazines. No dynamite, blasting caps, electric blasting caps or detonators, or other explosives shall be stored or kept inside a cavern except as provided for in this subchapter concerning Class B magazines. All other supplies of dynamite, electric blasting caps or detonators or other explosives shall be stored outside the cavern in Class A magazines constructed, located, and operated in accordance with the specifications of Chapter 5, Subchapter D. These magazines shall be so located that gases or fumes resulting from magazine explosions are not in any manner drawn into the air inlets of the cavern when the air current is reversed.

 (c)  Distributing magazines. Where Class B or distributing magazines are used, not more than a 24-hour supply of dynamite, electric blasting caps or detonators, or other explosives may be brought to or stored in such magazines. Class B magazines shall be located in the cavern and shall be constructed and operated in accordance with the specifications of Chapter 5, Subchapter D. When located in the cavern, they shall be placed in remote and unused sections of the cavern in the outlet airway.

 (d)  Transportation. No person may ride on any bucket or cage used for transporting explosives. No person other than the driver of a wagon, cart or motor truck may ride on the vehicle when the vehicle is being used to haul dynamite, electric blasting caps or detonators, or other explosives from Class A to Class B magazines. No person may carry his daily supply of explosives down any shaft. No person may ride down any shaft carrying his daily supply of explosives with him on the same trip. No person using dynamite in a cavern may put into open containers or transport it in any manner except in the original container unless such transportation is effected in a closed container.

 (e)  Class B magazines. When dynamite, detonators, or other explosives are removed from Class A or Class B magazines, they shall not be stored or kept at or near the mouth of any entry nor along the sides of any entry. When dynamite, electric blasting caps or detonators, or other explosives are removed from Class A magazines, they shall be immediately distributed to Class B magazines. Class B magazines shall be located not less than ten feet from any track or electric conductor. Not more than one Class B magazine shall be kept at any one place. Class B magazines shall not be located at any place within a cavern where accidental discharge of the explosive contained in such cavern would cut off the escape of persons. Nothing shall be stored in the same magazine with explosives. Nothing in this subchapter shall be construed to prohibit the opening of containers at Class B magazines for the purpose of distributing a day’s supply to any person whose day’s supply is less than 50 pounds of dynamite and 50 electric blasting caps or detonators. No person shall keep more than one day’s supply of explosives in a cavern at any one time.

 (f)  Electric blasting caps and detonators. Electric blasting caps or detonators which are used in a day’s work in a cavern shall be transported in the container in which originally packed by the manufacturer, except that a quantity less than one full container may be carried into a cavern in a suitable container. Each person using electric blasting caps or detonators in a cavern shall keep his daily supply in a safe and dry place, but it shall not be placed in any Class B magazine containing explosives.

 (g)  Responsibility for explosives. Complete responsibility for the distribution of dynamite, electric blasting caps or detonators, or other explosives in caverns shall be given to one competent person who shall be named by the contractor, operator or superintendent. This person shall keep a record of the amount of explosive used each day and the amounts sent in to replace the quantities used.