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The storage and display of small arms ammunition and primers, powder-actuated tool loads, black powder and smokeless propellants in Group M occupancies shall be in accordance with FC 3305.1 and 3306.5.2.
3306.5.1 Display
The display of small arms ammunition and primers, powder-actuated tool loads, black powder or smokeless propellants in Group M occupancies shall comply with the requirements of FC 3306.5.1.1 through 3306.5.1.4.
3306.5.1.1 Smokeless Propellant
It shall be unlawful to display smokeless propellant.
3306.5.1.2 Black Powder
It shall be unlawful to display black powder.
3306.5.1.3 Small Arms Ammunition and Primers
Where small arms ammunition and primers are displayed together in areas accessible to the public, a combined quantity of not more than 10,000 may be displayed, counting each round of ammunition and each primer separately. Such ammunition and primers shall be secured from direct access from the public.
3306.5.1.4 Powder-Actuated Tool Loads
A combined quantity of not more than ten thousand powder-actuated tool loads may be displayed. Powder-actuated tool loads shall be located in an area that is secured from direct access from the public, such as by placement in a locked glass showcase or metal cabinet.
3306.5.2 Storage
The storage of small arms ammunition and primers, powder-actuated tool loads, black powder and smokeless propellant shall comply with the requirements of FC 3306.5.2.1 through 3306.5.2.4.
3306.5.2.1 Smokeless Propellant
It shall be unlawful to store smokeless propellants in quantities exceeding 250 pounds (113 kg). Smokeless propellants in smaller amounts may be stored only if approved. Such storage shall be as follows:
  1. Smokeless propellant in quantities not exceeding 100 pounds (45 kg), shall be stored in a Type 2 or Type 4 magazine.
  2. Smokeless propellant in quantities exceeding 100 pounds (45 kg), shall be stored in a Type 1 magazine.
  3. Storage of any quantity indoors shall be in areas not accessible to the public.
3306.5.2.2 Black Powder
It shall be unlawful to store black powder in quantities exceeding 250 pounds (113 kg). Black powder may be stored in smaller amounts only if approved. Black powder in quantities less than 50 pounds (23 kg), when such storage is approved, shall be stored in a Type 2 or Type 4 indoor or outdoor magazine. Black powder in quantities of 50 pounds (23 kg) or greater, when such storage is approved, shall be stored in an outdoor Type 1 magazine. When black powder is stored with smokeless propellants in the same magazine, the total quantity shall not exceed that allowed for black powder.
3306.5.2.3 Small Arms Ammunition and Primers
Small arms ammunition and primers shall be stored as follows.
  1. Reserved.
  2. Where small arms ammunition and primers are stored in a building, a combined quantity of not more than 100,000 may be stored, counting each round of ammunition and each primer separately. Such storage shall be in compliance with the following requirements.
    1. The storage shall be in areas not accessible to the public.
    2. Small arms ammunition and primers shall be stored in nonportable storage cabinets having walls at least 1 inch (25 mm) nominal thickness.
    3. Shelves in cabinets shall have vertical separation of at least 2 feet (610 mm).
    4. Cabinets shall be located against a building exterior wall with not less than 40 feet (12 192 mm) between cabinets.
    5. The minimum required separation between cabinets may be reduced to 20 feet (6096 mm) provided that barricades twice the height of the cabinets are attached to the wall, midway between each cabinet. The barricades shall be firmly attached to the wall, and shall be constructed of steel not less than 0.25 inch thick (6.4 mm), 2-inch (51-mm) nominal thickness wood, brick, or concrete block.
3306.5.2.4 Powder-Actuated Tool Loads
A combined quantity of not more than 100,000 powder-actuated tool loads may be stored and displayed in a building. Quantities in excess of those authorized for display as set forth in FC3306.5.1.4 shall be stored in accordance with FC3306.5.2.3.

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