MN Law trumps NFPA
SECTION 3306
SMALL ARMS AMMUNITION
3306.1 General. Indoor storage and display of black powder,
smokeless propellants and small arms ammunition shall comply
with this section and NFPA 495.
3306.2 Prohibited storage. Small arms ammunition shall not
be stored together with Division 1.1, Division 1.2 or Division
1.3 explosives unless the storage facility is suitable for the storage
of explosive materials.
3306.3 Packages. Smokeless propellants shall be stored in approved
shipping containers conforming to DOTn 49 CFR, Part
173.
3306.3.1 Repackaging. The bulk repackaging of smokeless
propellants, black powder, and small arms primers shall not
be performed in retail establishments.
3306.3.2 Damaged packages. Damaged containers shall
not be repackaged.
Exception: Approved repackaging of damaged containers
of smokeless propellant into containers of the same
type and size as the original container.
3306.4 Storage in residences. The storage of small arms ammunition
shall comply with Sections 3306.4.1 and 3306.4.2.
3306.4.1 Black powder and smokeless propellants. Propellants
for personal use in quantities not exceeding 20
pounds (9 kg) of black powder or 20 pounds (9 kg) of
smokeless powder shall be stored in original containers in
occupancies limited to Group R-3. Smokeless powder in
quantities exceeding 20 pounds (9 kg) but not exceeding 50
pounds (23 kg) kept in awooden box or cabinet havingwalls
of at least 1 inch (25 mm) nominal thickness shall be
allowed to be stored in occupancies limited to Group R-3.
Quantities exceeding these amounts shall not be stored in
any Group R occupancy.
3306.4.2 Small arms primers. No more than 10,000 small
arms primers shall be stored in occupancies limited to
Group R-3.
3306.5 Display and storage in Group M occupancies. The
display and storage of small arms ammunition in GroupMoccupancies
shall comply with this section.
3306.5.1 Display. Display of small arms ammunition in
Group M occupancies shall comply with Sections
3306.5.1.1 through 3306.5.1.3.
3306.5.1.1 Smokeless propellant. No more than 20
pounds (9 kg) of smokeless propellants, each in containers
of 1 pound (0.454 kg) or less capacity, shall be displayed
in Group M occupancies.
3306.5.1.2 Black powder. No more than 1 pound (0.454
kg) of black powder shall be displayed in GroupMoccupancies.
3306.5.1.3 Small arms primers. No more than 10,000
small arms primers shall be displayed in GroupMoccupancies.
3306.5.2 Storage. Storage of small arms ammunition shall
comply with Sections 3306.5.2.1 through 3306.5.2.3.
3306.5.2.1 Smokeless propellant. Commercial stocks
of smokeless propellants shall be stored as follows:
1. Quantities exceeding 20 pounds (9 kg), but not exceeding
100 pounds (45 kg) shall be stored in portable
wooden boxes having walls of at least 1 inch
(25 mm) nominal thickness.
2. Quantities exceeding 100 pounds (45 kg), but not
exceeding 800 pounds (363 kg), shall be stored in
nonportable storage cabinets having walls at least
1 inch (25 mm) nominal thickness. Not more than
400 pounds (182 kg) shall be stored in any one cabinet,
and cabinets shall be separated by a distance
of at least 25 feet (7620 mm) or by a fire partition
having a fire-resistance rating of at least 1 hour.
3. Storage of quantities exceeding 800 pounds (363
kg), but not exceeding 5,000 pounds (2270 kg) in a
building shall comply with all of the following:
3.1. The warehouse or storage room is
unaccessible to unauthorized personnel.
3.2. Smokeless propellant shall be stored in
nonportable storage cabinets having wood
walls at least 1 inch (25 mm) nominal
thickness and having shelves with no more
than 3 feet (914mm)of separation between
shelves.
3.3. No more than 400 pounds (182 kg) is
stored in any one cabinet.
3.4. Cabinets shall be located against walls of
the storage room orwarehouse with at least
40 feet (12 192 mm) between cabinets.
3.5. The minimum required separation between
cabinets shall be 20 feet (6096 mm)
provided that barricades twice the height of
the cabinets are attached to the wall, midway
between each cabinet. The barricades
must extend a minimum of 10 feet (3048
mm) outward, be firmly attached to the
wall, and 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.
3.6. Smokeless propellant shall be separated
from materials classified as combustible
liquids, flammable liquids, flammable solids,
or oxidizing materials by a distance of
25 feet (7620 mm) by a fire partition having
a fire-resistance rating of 1 hour.
3.7. The building shall be equipped throughout
with an automatic sprinkler system installed
in accordance with Section
903.3.1.1.
4. Smokeless propellants not stored according to
Item 1, 2, or 3 above shall be stored in a Type 2 or 4
magazine in accordance with Section 3304 and
NFPA 495.
3306.5.2.2 Black powder. Commercial stocks of black
powder in quantities less than 50 pounds (23 kg) shall be
allowed to be stored in Type 2 or 4 indoor or outdoor
magazines. Quantities greater than 50 pounds (23 kg)
shall be stored in outdoor Type 2 or 4 magazines. When
black powder and smokeless propellants are stored together
in the same magazine, the total quantity shall not
exceed that permitted for black powder.
3306.5.2.3 Small arms primers. Commercial stocks of
small arms primers shall be stored as follows.
1. Quantities not to exceed 750,000 small arms primers
stored in a building shall be arranged such that
not more than 100,000 small arms primers are
stored in any one pile and piles are at least 15 feet
(4572 mm) apart.
2. Quantities exceeding 750,000 small arms primers
stored in a building shall comply with all of the following:
2.1. The warehouse or storage building shall
not be accessible to unauthorized personnel.
2.2. Small arms primers shall be stored in cabinets.
No more than 200,000 small arms
primers shall be stored in any one cabinet.
2.3. Shelves in cabinets shall have vertical separation
of at least 2 feet (610 mm).
2.4. Cabinets shall be located against walls of
thewarehouse or storage room with at least
40 feet (12 192 mm) between cabinets.
2.5. The minimum required separation between
cabinets shall be 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 thicknesswood, brick, or concrete
block.
2.6. Small arms primers shall be separated
from materials classified as combustible
liquids, flammable liquids, flammable solids,
or oxidizing materials by a distance of
25 feet (7620 mm) by a fire partition having
a fire-resistance rating of 1 hour.
2.7. The building shall be protected throughout
with an automatic sprinkler system installed
in accordance with Section
903.3.1.1.
3. Small arms primers not stored in accordance with
Item 1 or 2 of this section shall be stored in a magazine
meeting the requirements of Section 3304 and
NFPA 495.