[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR77]

[Page 654-655]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 77_MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK 
AREAS OF UNDERGROUND COAL MINES--Table of Contents
 
                    Subpart N_Explosives and Blasting
 
Sec.  77.1301  Explosives; magazines.

    (a) Detonators and explosives other than blasting agents shall be 
stored in magazines.
    (b) Detonators shall not be stored in the same magazine with 
explosives.
    (c) Magazines other than box type shall be:
    (1) Located in accordance with the current American Table of 
Distances for storage of explosives.
    (2) Detached structures located away from powerlines, fuel storage 
areas, and other possible sources of fire.
    (3) Constructed substantially of noncombustible material or covered 
with fire-resistant material.
    (4) Reasonably bullet resistant.

[[Page 655]]

    (5) Electrically bonded and grounded if constructed of metal.
    (6) Made of nonsparking materials on the inside, including floors.
    (7) Provided with adequate and effectively screened ventilation 
openings near the floor and ceiling.
    (8) Kept locked securely when unattended.
    (9) Posted with suitable danger signs so located that a bullet 
passing through the face of a sign will not strike the magazine.
    (10) Used exclusively for storage of explosives or detonators and 
kept free of all extraneous materials.
    (11) Kept clean and dry in the interior, and in good repair.
    (12) Unheated, unless heated in a manner that does not create a fire 
or explosion hazard.
    (d) Box-type magazines used to store explosives or detonators in 
work areas shall be constructed with only nonsparking material inside 
and equipped with covers or doors and shall be located out of the line 
of blasts.
    (e) Secondary and box-type magazines shall be suitably labeled.
    (f) Detonator-storage magazines shall be separated by at least 25 
feet from explosive-storage magazines.
    (g) Cases or boxes containing explosives shall not be stored in 
magazines on their ends or sides nor stacked more than 6 feet high.
    (h) Ammonium nitrate-fuel oil blasting agents shall be physically 
separated from other explosives, safety fuse, or detonating cord stored 
in the same magazine and in such a manner that oil does not contaminate 
the other explosives, safety fuse or detonating cord.