§ 33.64. Daily supply.

 (a)  No person shall keep more than one 25-pound keg of black powder nor more than one 50-pound box of dynamite or other explosive at any one time in any one Class C magazine unless more is necessary to accomplish work for one day.

 (b)  Any person who keeps dynamite, black powder, fuse, blasting caps, electric blasting caps or detonators, electric squibs, or other explosives in a mine for use in a day’s work shall do so in a suitable closed container in a Class C magazine. The Class C magazine shall consist of a covered and hinged metal covered or wooden box. Class C magazines shall be located not less than 10 feet from any track or electric conductor in all cases where such distance is available and not less than 50 feet from the working face. Not more than one such Class C magazine shall be kept at any one place. Class B magazines shall not be located at any place within a mine if accidental discharge of the explosive contained in such mine would cut off the escape of persons. Matches, carbide, oil, or tools shall not be kept in the same magazine with explosives. Nothing in this Subchapter shall be construed to prohibit the opening of containers at Class B or Class C magazines for the purpose of distributing the daily supply to any person whose daily supply is less than 50 pounds of dynamite or 25 pounds of black powder and 50 electric blasting caps or detonators, or 100 blasting caps.

 (c)  Blasting caps, electric blasting caps or detonators, or electric squibs used in a day’s work in a mine shall be carried into the mine in the container in which originally packed by the manufacturer, except that a quantity less than one full container may be carried into a mine in a suitable container. Each person using blasting caps, electric blasting caps or detonators or electric squibs in a mine shall keep his daily supply in a safe and dry place if such supply is not placed in any Class B or Class C magazine containing explosives. Fuse shall be kept in a cool, dry place. If more than 25 pounds of black powder or 50 pounds of dynamite is kept at one spot in a mine, blasting caps, electric blastings caps, detonators or electric squibs, shall be kept not less than 10 feet away from the explosives.

 (d)  No person shall carry his daily supply of explosive down any shaft, and no person may ride down any shaft carrying his daily supply of explosive with him on the same trip.

 (e)  Nothing in this subchapter shall be construed to prohibit a person from walking into a mine carrying a day’s supply of explosive if the day’s supply does not exceed 50 pounds of dynamite or 25 pounds of black powder and 50 electric blasting caps or detonators or 100 blasting caps.

 (f)  Nothing in this subchapter shall be construed to require any contents of a Class B magazine remaining over from a day’s work to be transported back to Class A magazines. All explosives remaining over from work of one day shall be used first on the next succeeding working day.