§ 33.62. Storage.

 (a)  No dynamite, black powder, fuse, blasting caps, electric blasting caps or detonators, electric squibs or other explosives shall be stored or kept inside a mine except as provided for in the case of Class B and Class C magazines as set out in this subchapter.

 (b)  All other supplies of dynamite, black powder, fuse, blasting caps, electric blasting caps or detonators, electric squibs or other explosives shall be stored outside the mine in Class A magazines constructed, located and operated in accordance with Chapter 5, Subchapter D (relating to explosives). These magazines shall be so located that gases or fumes resulting from magazine explosions cannot in any manner be drawn into the air inlets of the mine even when the air current is reversed.

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