# 7 CCR 1101-9: EXPLOSIVES REGULATIONS

> Colorado · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_7_CCR_1101_9

## Section

- **Citation:** 7 CCR 1101-9
- **Heading:** EXPLOSIVES REGULATIONS
- **Jurisdiction:** Colorado
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Code of Colorado Regulations / 1100 Department of Labor and Employment / 1101 Division of Oil and Public Safety / 7 CCR 1101-9

## Text

1
DEPARTMENT OF LABOR AND EMPLOYMENT
Division of Oil and Public Safety
EXPLOSIVES REGULATIONS
7 CCR 1101-9
[Editor’s Notes follow the text of the rules at the end of this CCR Document.]
_________________________________________________________________________
ARTICLE 1
GENERAL PROVISIONS
Section 1-1
Basis and Purpose
These regulations are promulgated to establish rules for the use, manufacture, possession, sale, storage,
transport, or disposal of explosives materials or blasting agents in the interest of the life, health, and
safety of employees and the general public, as well as the protection of property.
To this end, a procedure for the granting of explosives permits is contained herein whereby the
opportunity to use, manufacture, possess, sell, store, transport, or dispose of explosives materials is
restricted to such permittees and conditioned upon satisfactory continued compliance with these rules
and regulations. Failure to comply with these rules and regulations subjects the permittee to suspension,
denial, or revocation of the permit.
Adoption of these rules and regulations is intended to greatly clarify the Division of Oil and Public Safety
requirements pertaining to the use of explosive materials, to ease the burden on the permittee where
interpretation has been necessary, and to better incorporate the numerous requirements from other
governmental agencies. These rules and regulations provide for uniformity of compliance and elimination
of numerous areas of confusion and duplication in an effort to better serve and protect the public.
Section 1-2
Statutory Authority
The amendments to these regulations are created pursuant to Section 9-7-105, C.R.S. (2004) of the
Colorado Revised Statutes. All prior rules for explosive materials are hereby repealed.
Section 1-3
Effective Date
These amended regulations shall be effective on May 1, 2019. The previous versions of these regulations
were effective on December 1, 2018, March 10, 2015, and January 1, 2009
y Authority
The amendments to these regulations are created pursuant to Section 9-7-105, C.R.S. (2004) of the
Colorado Revised Statutes. All prior rules for explosive materials are hereby repealed.
Section 1-3
Effective Date
These amended regulations shall be effective on May 1, 2019. The previous versions of these regulations
were effective on December 1, 2018, March 10, 2015, and January 1, 2009.
Section 1-4
Scope
These rules and regulations shall apply to the use, manufacture, purchase, possession, sale, storage,
transportation, and disposal of explosive materials in the State of Colorado by any individual, corporation,
company, firm, partnership, association, or state or local government agency.
These rules and regulations shall not apply to:
(A)
The shipment, transportation, and handling of military explosives by the Armed Forces of the
United States or the State Militia.
Code of Colorado Regulations
Secretary of State
State of Colorado

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(B)
The normal and emergency operations of any government law enforcement agency including all
departments, and divisions thereof, provided they are acting in their official capacity and in the
proper performance of their duties and functions.
(C)
Explosives in the forms prescribed by the official United States Pharmacopoeia or the National
Formulary and used in medicines and medicinal agents.
(D)
Explosive materials while in the course of transportation by for-hire commercial carriers via
railroad, water, highway, or air when the explosive materials are moving under the jurisdiction of,
and in conformity with, regulations adopted by any Federal Department or Agency.
(E)
The components for hand loading rifle, pistol, and shotgun ammunition and/or rifle, pistol, and
shotgun ammunition.
(F)
The manufacture, sale and use (public display) of pyrotechnics commonly known as fireworks,
including signaling devices such as flares, fuses, and torpedoes
are moving under the jurisdiction of,
and in conformity with, regulations adopted by any Federal Department or Agency.
(E)
The components for hand loading rifle, pistol, and shotgun ammunition and/or rifle, pistol, and
shotgun ammunition.
(F)
The manufacture, sale and use (public display) of pyrotechnics commonly known as fireworks,
including signaling devices such as flares, fuses, and torpedoes.
(G)
Gasoline, fertilizers, installed propellant/powder-actuated safety devices or propellant/powder-
actuated power tools.
(H)
The use and storage of model rocket motors containing a propellant weight of 62.5 grams or less
and which produce less than 17.92 pound seconds of total impulse.
No permit shall be required for the occasional purchase of explosives by a person for normal agricultural
purposes where such person is known by the seller of such explosives, and a record is kept of such
transactions by the seller, including the specific purpose for which such explosives will be used, the
location of the purposed use, the signature of the purchaser, and the certification of the seller as to his
personal knowledge of the purchaser. Violation of this record requirement shall cause the seller’s permit
to be canceled. A permit is required for any manufacturing, storage, dealing, or non-agricultural use of
explosives as outlined in Article 3 of this regulation.
No person, firm, partnership, or corporation whose possession of explosive materials is for the purpose of
underground mining, surface or underground metal mining, or surface or underground coal mining and
whose use and storage is subject to regulation by the provisions of 30 Code of Federal Regulations
(CFR) - Parts 56, 57, 75 or 77 shall be subject to the provisions of the Explosives Act, Sections 9-7-101,
et seq., Colorado Revised Statutes (C.R.S.).
No person, firm, partnership, or corporation whose possession, use, or storage of explosive materials is
subject to regulation by the provisions of Colorado Mining Law, Sections 34-21-104 and 34-21-110,
C.R.S
sions of 30 Code of Federal Regulations
(CFR) - Parts 56, 57, 75 or 77 shall be subject to the provisions of the Explosives Act, Sections 9-7-101,
et seq., Colorado Revised Statutes (C.R.S.).
No person, firm, partnership, or corporation whose possession, use, or storage of explosive materials is
subject to regulation by the provisions of Colorado Mining Law, Sections 34-21-104 and 34-21-110,
C.R.S. shall be subject to the provisions of the Explosives Act, Sections 9-7-101, et seq., C.R.S.
A permit issued by the Division of Oil and Public Safety shall be required for the possession, use, or
storage of explosives in mining operations whose use and storage is not subject to the provisions of 30
CFR - Parts 56, 57, 75 or 77 or Colorado Mining Law, Sections 34-21-104 and 34-21-110, C.R.S.
Except as noted in the foregoing, the Division of Oil and Public Safety may approve or disapprove the
location for, and limit the quantity of, explosives or blasting agents which may be loaded, unloaded,
reloaded, stored, or temporarily retained at any facility within the State of Colorado.
The Division of Oil and Public Safety may issue an explosive permit for continued use for a period of time
not to exceed 36 months.

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Section 1-5
Definitions
The following publications and codes are hereby incorporated by this reference:
•
Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), U.S. Department of Justice,
Publication ATF P 5400.7, ATF- Explosives Law and Regulations (2012) – Bureau of Alcohol,
Tobacco, Firearms and Explosives (ATF), 99 New York Avenue, NE; Washington, DC 20226.
https://www.atf.gov
•
Title 49 CFR - Parts 100-177 (inclusive) https://www.govinfo.gov Parts 390-397 U.S. Department
of Transportation (Revised September 27, 2012) – US DOT FMCSA, 1200 New Jersey Avenue,
SE; Washington, DC 80590
ication ATF P 5400.7, ATF- Explosives Law and Regulations (2012) – Bureau of Alcohol,
Tobacco, Firearms and Explosives (ATF), 99 New York Avenue, NE; Washington, DC 20226.
https://www.atf.gov
•
Title 49 CFR - Parts 100-177 (inclusive) https://www.govinfo.gov Parts 390-397 U.S. Department
of Transportation (Revised September 27, 2012) – US DOT FMCSA, 1200 New Jersey Avenue,
SE; Washington, DC 80590. https://www.fmcsa.dot.gov
•
National Electric Code (NEC), 2017 Edition, National Fire Protection Association (NFPA) – NFPA
(NEC), 1 Batterymarch Park, Quincy, MA 02169. https://catalog.nfpa.org
•
Institute of Makers of Explosives (IME) Safety Library Publication No. 22 (February 2007) – IME,
1212 New York Avenue, NW, Suite 650; Washington, DC 20005. https://www.ime.org
•
Institute Of Makers Of Explosives (IME) Safety Library Publication No. 20 (December 2011) -
IME, 1212 New York Avenue, NW, Suite 650; Washington, DC 20005. https://www.ime.org
•
The Avalanche Artillery Users of North America Committee (AAUNAC) Training Standard
(Revised May 16, 2012) – AAUNAC, PO Box 8095, 8920 South Collins Road; Alta, UT 84092
These rules incorporate the editions and revisions specified. Subsequent editions and revisions have not
been incorporated by this reference. The publications incorporated by this reference may be examined
and a copy of them may be obtained upon request and payment of the cost of reproduction during regular
business hours from the Colorado Department of Labor and Employment, Division of Oil and Public
Safety, 633 17th Street, Suite 500, Denver, CO 80202, and may also be inspected at the state depository
libraries.
The following words when used in these rules and regulations shall mean:
AIR OVERPRESSURE, OVERPRESSURE: The airborne shock wave or acoustic transient generated by
an explosive
ring regular
business hours from the Colorado Department of Labor and Employment, Division of Oil and Public
Safety, 633 17th Street, Suite 500, Denver, CO 80202, and may also be inspected at the state depository
libraries.
The following words when used in these rules and regulations shall mean:
AIR OVERPRESSURE, OVERPRESSURE: The airborne shock wave or acoustic transient generated by
an explosive.
AMERICAN TABLE OF DISTANCES: A quantity-distance table prepared and approved by the Institute of
the Makers of Explosives, for storage of explosive materials to determine safe distances from
inhabited buildings, public highways, passenger railways, and other stored explosive materials.
See Section 4.6 of these regulations.
AMMONIUM NITRATE: The ammonium salt of nitric acid represented by the formula NH4NO3.
APPROVED STORAGE FACILITY (APPROVED MAGAZINE): A facility for the storage of explosives
materials conforming to the requirements of these rules and regulations.
ATTEND(ED): The physical presence of an authorized person within the field of vision of explosives or
the use of explosives.
AUTHORIZED, APPROVED, OR APPROVAL: Terms which mean approved, approval, or authorized by
the Division.
AUTHORIZED PERSON: A person approved or assigned by the management to perform a specific type
of duty or duties or to be at a specific location or locations at the job site.

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vision of explosives or
the use of explosives.
AUTHORIZED, APPROVED, OR APPROVAL: Terms which mean approved, approval, or authorized by
the Division.
AUTHORIZED PERSON: A person approved or assigned by the management to perform a specific type
of duty or duties or to be at a specific location or locations at the job site.

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ARMED CHARGE: An explosive cartridge that contains a detonator.
ARTIFICIAL BARRICADE: An artificial mound, berm, or wall of earth of a minimum thickness of 3 feet, or
any other approved barricade that offers equivalent protection.
AVALAUNCHER: A compressed gas explosives delivery system designed for avalanche hazard
mitigation.
BARRICADED: The effective screening of a building or magazine containing explosive materials from
another magazine or building, railway, or highway by a natural or artificial barrier. A straight line
from the top of any sidewall of the building or magazine containing explosives materials to the
eave line of any magazine or building or to a point 12 feet above the center of a railway or
highway shall pass through the barrier.
BINARY (TWO-COMPONENT) EXPLOSIVE: A blasting explosive formed by the mixing or combining of
two precursor chemicals, (e.g., ammonium nitrate and nitromethane).
BLACK POWDER: A deflagrating or low explosive compound of an intimate mixture of sulfur, charcoal
and an alkali nitrate (usually potassium or sodium nitrate).
BLAST AREA: Area of the blast within the influence of flying rock missiles, gases, vibration, and
concussion.
BLASTER: A Type I permitted individual who is permitted by the Division to possess and control the use
of explosives.
BLASTER IN CHARGE: A Type I permittee who is in charge of and responsible for the loading or
preparing of the explosives charges, and either physically initiates the charge or is physically
present when the charge is initiated at a specific job site
ases, vibration, and
concussion.
BLASTER: A Type I permitted individual who is permitted by the Division to possess and control the use
of explosives.
BLASTER IN CHARGE: A Type I permittee who is in charge of and responsible for the loading or
preparing of the explosives charges, and either physically initiates the charge or is physically
present when the charge is initiated at a specific job site. This individual is in charge of the
planning of the blast at a specific job site, the supervision of all persons assisting on the blast and
all persons in training, and is responsible for the inventory, inventory records, and blast records
for the blast.
BLASTING AGENT: An explosive material which meets prescribed criteria for insensitivity to initiation.
For storage, Title 27, CFR, Section 55.11, defines a blasting agent as any material or mixture
consisting of fuel and oxidizer intended for blasting, not otherwise defined as an explosive
provided that the finished product, as mixed for use or shipment, cannot be detonated by means
of a No. 8 Blasting Cap when unconfined (Bureau of Alcohol, Tobacco, Firearms, and Explosives
Regulation).
For transportation, Title 49 CFR defines a blasting agent as a material designed for blasting
which has been tested and found to be so insensitive that there is very little probability of
accidental initiation to explosion or transition from deflagration to detonation (US Department of
Transportation Regulation).
BLASTING MAT: A mat of woven steel, wire, rope, scrap tires, or other suitable material or construction
to cover blast holes for the purpose of preventing flying rock missiles.
BLAST PATTERN, DRILL PATTERN: The plan of the drill holes laid out for blasting; an expression of the
burden distance, the spacing distance and their relationship to each other
(US Department of
Transportation Regulation).
BLASTING MAT: A mat of woven steel, wire, rope, scrap tires, or other suitable material or construction
to cover blast holes for the purpose of preventing flying rock missiles.
BLAST PATTERN, DRILL PATTERN: The plan of the drill holes laid out for blasting; an expression of the
burden distance, the spacing distance and their relationship to each other.
BLAST SITE: Area where explosive material is handled during blasting operations, including the
perimeter of blast holes and a distance of 50 feet in all directions from explosive charges, loaded
boreholes or boreholes to be loaded.

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BOOSTER: An explosive charge, usually of high detonation velocity and detonation pressure, designed
to be used in the initiation sequence between an initiator or primer and the main charge.
BOREHOLE, BLAST HOLE, DRILL HOLE: A hole drilled in the material to be blasted, for the purpose of
containing an explosive charge.
BULK MIX: A mass of explosive material prepared for use in bulk form without packaging.
BULK MIX DELIVERY EQUIPMENT: Equipment (usually a motor vehicle with or without a mechanical
delivery device) which transports explosive material in bulk form for mixing and/or loading directly
into blast holes.
BULLET-RESISTANT: Magazine walls or doors of construction resistant to penetration of a bullet of 150-
grain M2 ball ammunition having a nominal muzzle velocity of 2,700 feet per second fired from a
.30 caliber rifle from a distance of 100 feet perpendicular to the wall or door.
When a magazine ceiling or roof is required to be bullet-resistant, the ceiling or roof shall be
constructed of materials comparable to the side walls or of other materials which will withstand
penetration of the bullet described above when fired at an angle of 45 degrees from
perpendicular
eet per second fired from a
.30 caliber rifle from a distance of 100 feet perpendicular to the wall or door.
When a magazine ceiling or roof is required to be bullet-resistant, the ceiling or roof shall be
constructed of materials comparable to the side walls or of other materials which will withstand
penetration of the bullet described above when fired at an angle of 45 degrees from
perpendicular.
Tests to determine bullet resistance shall be conducted on test panels or empty magazines which
shall resist penetration of 5 out of 5 shots placed independently of each other in an area of at
least 3 feet by 3 feet. Examples of construction that meet this definition are given in Article 4 as
alternate construction standards for Type 1 and Type 2 magazines.
BULLET-SENSITIVE EXPLOSIVE MATERIAL: Explosive material that can be detonated by 150 grain
M2 ball ammunition having a nominal muzzle velocity of 2,700 feet per second when the bullet is
fired from a .30 caliber rifle at a distance of not more than 100 feet and the test material, at a
temperature of 70-75 degrees Fahrenheit, is placed against a backing material of 2 inch steel
plate.
BURDEN: The distance from the borehole and the nearest free face, or the distance between boreholes
measured perpendicular to the spacing. Also, the total amount to be blasted by a given hole,
which is usually measured in cubic yards or tons.
BUS WIRE: Expendable heavy gauge bare copper wire used to connect detonators or series of
detonators in parallel.
CHARGE-PER-DELAY: Any charges firing within any 8-millisecond time period are considered to have a
cumulative effect on vibration and air over-pressure effects. Therefore, the maximum charge-per-
delay (w) is the maximum weight of all charges firing within any 8-millisecond (ms) time period
from the time a blast starts until the time it ends. For example, if two 10-lb charges fire at 100 ms
and one 15-lb charge fires at 105 ms, the maximum charge-per-delay (w) for this time period
would be 35 lbs
mulative effect on vibration and air over-pressure effects. Therefore, the maximum charge-per-
delay (w) is the maximum weight of all charges firing within any 8-millisecond (ms) time period
from the time a blast starts until the time it ends. For example, if two 10-lb charges fire at 100 ms
and one 15-lb charge fires at 105 ms, the maximum charge-per-delay (w) for this time period
would be 35 lbs.
COLLAR: The mouth or opening of a borehole.
CONNECTING WIRE: Wire used to extend the firing line or leg wires in the electric blasting circuit.
CONTROL: To directly exercise authority or dominating influence over the use, manufacture, acquisition,
purchase, sale, distribution, storage, transportation, or disposal of explosive materials.
CORNICE: An overhanging mass of windblown snow or ice, usually located near a sharp terrain break.

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DATE-SHIFT CODE: A code, required by federal regulation (ATF), applied by manufacturers to the
outside shipping containers, and, in many instances, to the immediate containers of explosive
materials to aid in their identification and tracing. The code indicates the date, work shift and plant
of manufacture.
DAY BOX: A portable magazine for the temporary and attended storage of explosives. Day boxes shall
meet construction requirements of a Type 3 magazine.
DEALER: Any person engaged in the business of distributing explosive material at wholesale or retail.
DECK: An explosive charge that is separated from other charges in the blast hole by stemming or an air
cushion.
DEFLAGRATION: An explosive reaction, such as rapid combustion, that moves through an explosive
material at a velocity less than the speed of sound in the material.
DENSITY: The mass of an explosive per unit volume, usually expressed in grams per cubic centimeter or
pounds per cubic foot.
DETONATING CORD: A flexible cord containing a center core of high explosives, which may be used to
initiate other high explosives
xplosive reaction, such as rapid combustion, that moves through an explosive
material at a velocity less than the speed of sound in the material.
DENSITY: The mass of an explosive per unit volume, usually expressed in grams per cubic centimeter or
pounds per cubic foot.
DETONATING CORD: A flexible cord containing a center core of high explosives, which may be used to
initiate other high explosives.
DETONATION: An explosive reaction that moves through an explosive material at a velocity greater than
the speed of sound in the material.
DETONATOR: Any device containing any initiating or primary explosive that is used for initiating
detonation. A detonator may not contain more than 10 grams of total explosives by weight,
excluding ignition or delay charges. The term includes, but is not limited to, electric blasting caps
of instantaneous and delay types, electronic detonators, blasting caps for use with safety fuses,
detonating cord delay connectors, and non-electric instantaneous and delay blasting caps which
use detonating cord, shock tube, or any other replacement for electric leg wires.
DIVISION: The Director of the Division of Oil and Public Safety of the Department of Labor and
Employment or any designees thereof which may include certain employees of the Division of Oil
and Public Safety or other persons.
DOWN LINE: A line of detonating cord or plastic tubing in a blast hole which transmits detonation from
the trunkline or surface delay system down the hole to the primer.
ELECTRIC DETONATOR: A detonator designed for and capable of initiation by means of an electric
current.
ELECTRONIC DETONATORS: A detonator that utilizes stored electrical energy as a means of powering
an electronic timing delay element/module and that provides initiation energy for firing the base
charge.
EMULSION: An explosive material containing substantial amounts of oxidizers dissolved in water droplets
surrounded by an immiscible fuel, or droplets of an immiscible fuel surrounded by water
containing substantial amounts of oxidizer
at utilizes stored electrical energy as a means of powering
an electronic timing delay element/module and that provides initiation energy for firing the base
charge.
EMULSION: An explosive material containing substantial amounts of oxidizers dissolved in water droplets
surrounded by an immiscible fuel, or droplets of an immiscible fuel surrounded by water
containing substantial amounts of oxidizer.
EXPLOSIVE: Any chemical compound, mixture or device, the primary or common purpose of which is to
function by explosion; the term includes, but is not limited to, dynamite and other high explosives,
black powder, pellet powder, initiating explosives, detonators, safety fuses, squibs, detonating
cord, igniter cord and igniters.

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EXPLOSIVE MATERIALS: These include explosives, blasting agents, and detonators. The term includes
but is not limited to dynamite and other high explosives; slurries, emulsions, and water gels, black
powder, initiating explosives, propellant rockbreaking cartridges (such as Rockrackers™),
detonators (blasting caps), safety fuses, squibs, detonating cord, igniter cord, and igniters. Binary
explosives (such as Kinepak™ or Execon™), sold in two or more components, are considered an
explosive material requiring a Division explosives permit.
EXPLOSIVE OILS: Liquid explosive sensitizers for explosive materials (.e.g., nitroglycerin, ethylene
glycol dinitrate and metriol trinitrate).
EXTRANEOUS ELECTRICITY: Electrical energy, other than actual firing current or the test current from a
blasting galvanometer, that is present at a blast site and that could enter a blasting circuit. It
includes stray current, static electricity, electromagnetic waves, and time varying electric and
magnetic fields
e materials (.e.g., nitroglycerin, ethylene
glycol dinitrate and metriol trinitrate).
EXTRANEOUS ELECTRICITY: Electrical energy, other than actual firing current or the test current from a
blasting galvanometer, that is present at a blast site and that could enter a blasting circuit. It
includes stray current, static electricity, electromagnetic waves, and time varying electric and
magnetic fields.
FIRE EXTINGUISHER RATING: A rating set forth in the National Fire Code which may be identified on
an extinguisher by a number (5, 20, 70, etc.) indicating the extinguisher’s relative effectiveness,
followed by a letter (A, B, C, etc.) indicating the class or classes of fires for which the extinguisher
has been found to be effective.
FIRE-RESISTANT: Construction designed to provide reasonable protection against fire. For exterior walls
or magazine constructed of wood, this shall mean fire resistance equivalency provided by sheet
metal of not less than #26 gauge.
FIRING LINE: The wire(s) connecting the electrical power source with the electric or electronic blasting
circuit.
FLYROCK: Dirt, mud, stone, fragmented rock or other material that is propelled from the blast site by the
force of an explosion.
FREE FACE: A rock surface exposed to air or water which provides room for expansion upon
fragmentation.
FUSE (SAFETY): A flexible cord containing an internal burning medium by which fire or flame is
conveyed at a continuous and uniform rate from the point of ignition to a cut end. A fuse
detonator is usually attached to that end, although safety fuse may be used without a detonator to
ignite material such as deflagrating explosives.
FUSE DETONATOR, BLASTING CAP: A detonator which is initiated by a safety fuse or used in an
avalauncher round; also referred to as an ordinary blasting cap. Also see detonator.
FUSE LIGHTERS: Pyrotechnic devices for the rapid and certain lighting of safety fuse.
FUEL: A substance which may react with oxygen to produce combustion
thout a detonator to
ignite material such as deflagrating explosives.
FUSE DETONATOR, BLASTING CAP: A detonator which is initiated by a safety fuse or used in an
avalauncher round; also referred to as an ordinary blasting cap. Also see detonator.
FUSE LIGHTERS: Pyrotechnic devices for the rapid and certain lighting of safety fuse.
FUEL: A substance which may react with oxygen to produce combustion.
GRAINS: In the avoirdupois system of weight measurement, 7,000 7000 grains are equivalent to one
standard, 16-ounce pound (0.45 kg). A grain is 0.0648 grams in both the avoirdupois and troy
systems.
GROUND VIBRATION: Shaking the ground by elastic waves emanating from a blast; usually measured
in inches per second of particle velocity.
HARDWOOD: Red Oak, White Oak, Hard Maple, Ash, or Hickory, free from loose knots, wind shakes, or
similar defects.

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HIGH EXPLOSIVES: Explosives which are characterized by a very high rate of reaction, high pressure
development and the presence of a detonation wave, including, but not limited to, dynamite,
detonating cord, cast boosters, detonators, cap-sensitive slurry, emulsion, or water gels, and
mixed binaries.
HOWITZER: A military cannon that delivers projectiles at medium muzzle velocity at low or high
trajectories.
INHABITED AREA OR BUILDING: A building regularly occupied in whole or in part as a habitation for
human beings, or any church, schoolhouse, railroad station, store, or other structure where
people are accustomed to assemble, except any building or structure occupied in connection with
the manufacture, transportation, storage, and use of explosive materials.
INSPECTOR: An Inspector of the Division.
INITIATION: The start of deflagration or detonation in an explosive material.
INITIATION SYSTEM: Combination of explosive devices and accessories (detonators, wire, cord, etc.)
designed to convey a signal and initiate an explosive charge
ilding or structure occupied in connection with
the manufacture, transportation, storage, and use of explosive materials.
INSPECTOR: An Inspector of the Division.
INITIATION: The start of deflagration or detonation in an explosive material.
INITIATION SYSTEM: Combination of explosive devices and accessories (detonators, wire, cord, etc.)
designed to convey a signal and initiate an explosive charge.
LAWFUL POSSESSOR: A Type II permittee who has legally purchased or acquired explosive materials.
LOADING DENSITY: The weight of explosive, expressed as pounds per foot or kilograms per meter of
borehole.
LOW EXPLOSIVES: Explosives which are characterized by deflagration or a low rate of reaction and the
development of low pressure.
MAGAZINE: Any building, structure, or container, other than an explosives manufacturing building,
approved for the storage of explosive materials.
MAGAZINE DISTANCE: Shall mean the minimum distance permitted between any two storage
magazines which is expected to prevent propagation of an explosion from one magazine to
another from a blast.
MAKE-UP ROOM: A room located inside an uninhabited building which shall be used for the assembly of
cap and fuse or for the arming of explosive charges used in avalanche mitigation work.
MANUFACTURER: Any individual, corporation, company, firm, partnership, association, or state or local
government agency engaged in the business of manufacturing explosive materials for the
purpose of sale, distribution or for his own use.
MASS DETONATION: When a unit or any part or quantity of explosive material detonates and causes all
or a substantial part of the remaining material to detonate.
MISFIRE: A blast that fails to detonate completely after an attempt at initiation. This term is also used to
describe the explosive material itself that has failed to detonate as planned.
MOTOR VEHICLE: A vehicle, machine, tractor, semi-trailer or other conveyance propelled or drawn by
mechanical power. Does not include vehicles operated exclusively on rail
t of the remaining material to detonate.
MISFIRE: A blast that fails to detonate completely after an attempt at initiation. This term is also used to
describe the explosive material itself that has failed to detonate as planned.
MOTOR VEHICLE: A vehicle, machine, tractor, semi-trailer or other conveyance propelled or drawn by
mechanical power. Does not include vehicles operated exclusively on rail.
NATURAL BARRICADE: Natural features of the ground, such as hills, or timber of sufficient density that
the surrounding exposures which require protection cannot be seen from the magazine when the
trees are bare of leaves.

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NON-ELECTRIC DETONATOR: A detonator that does not require the use of electric energy to function.
OXIDIZER OR OXIDIZING MATERIAL: A substance, such as nitrite, that readily yields oxygen or other
oxidizing substances to promote the combustion of organic matter or other fuel.
PERMANENT STORAGE MAGAZINE: Type 1 magazines or Type 2, Type 4, or Type 5 magazines that
have been at the same location for longer than 90 days.
PARTICLE BOARD: A composition board made of small pieces of wood that have been bonded
together.
PARTICLE VELOCITY: A measure of the intensity of ground vibration, specifically the velocity of motion
of the ground particles as they are excited by the wave energy.
PERMITTEE: Any user, purchaser, manufacturer, dealer, storer, disposer, or transporter of explosives for
a lawful purpose, who has obtained a permit from the Division.
PERSON: Any individual, corporation, company, firm, partnership, association, or state or local
government agency.
PETN: Pentaerythritol tetranitrate.
PLACARDS: Division of Transportation Approved Title 49 CFR signs placed on vehicles transporting
hazardous materials (including explosive materials) indicating the nature of the cargo.
PLYWOOD: Exterior construction-grade plywood
from the Division.
PERSON: Any individual, corporation, company, firm, partnership, association, or state or local
government agency.
PETN: Pentaerythritol tetranitrate.
PLACARDS: Division of Transportation Approved Title 49 CFR signs placed on vehicles transporting
hazardous materials (including explosive materials) indicating the nature of the cargo.
PLYWOOD: Exterior construction-grade plywood.
POSSESS: The physical possession of explosives on one’s person, or in the person’s vehicle, magazine
or building.
POWDER: A common synonym for explosive materials.
POWDER FACTOR: The amount of explosives used per unit of blasted material (see Loading Density).
PRIMER: A unit, package, or cartridge of explosives used to initiate other explosives or blasting agents,
which contains either a detonator or a detonating cord to which a detonator designed to initiate
the detonating cord is attached.
PROPELLANT/POWDER-ACTUATED POWER DEVICE: Any tool or special mechanized device or gas
generator system which is actuated by a propellant or which releases and directs work through a
propellant charge.
PUBLIC CONVEYANCE: Any railroad car, streetcar, ferry, cab, bus, aircraft, or other vehicle carrying
passengers for hire.
PUBLIC HIGHWAY: Shall mean any public street, alley, or road.
PUBLIC HIGHWAY DISTANCE: Shall mean the minimum distance permitted between a public highway
and an explosives magazine.
PUBLIC PLACE: A place which the public or a substantial number of the public has access, and includes
but is not limited to, highways, transportation facilities, schools, places of amusement, parks,
playgrounds, and the common areas of public and private buildings and facilities.
PURCHASER: A Type II permittee who acquires explosives.

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A place which the public or a substantial number of the public has access, and includes
but is not limited to, highways, transportation facilities, schools, places of amusement, parks,
playgrounds, and the common areas of public and private buildings and facilities.
PURCHASER: A Type II permittee who acquires explosives.

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PYROTECHNICS, FIREWORKS: Any combustible or explosive compositions or manufactured articles
designed and prepared for the purpose of producing audible or visible effects.
RAILWAY: Any steam, electric, or other type of railroad or railway.
RESPONSIBLE PERSON: A Type I permitted individual who is directly responsible for a Type II
permittee’s compliance with the provisions of the Explosives Act, 9-7, C.R.S., and any rules and
regulations promulgated thereunder.
SAFETY FUSE: A flexible cord containing an internal burning medium by which fire or flame is conveyed
at a continuous and uniform rate from the point of ignition to a cut end. A fuse detonator is usually
attached to that end, although safety fuse may be used without a detonator to ignite material such
as deflagrating explosives.
SCALED DISTANCE (DS): A factor relating similar blast effects from various weight charges of explosive
material at various distances. Scaled Distances referring to blasting effects are obtained by
dividing the distance of concern by a fractional power of the charge weight per delay of the
explosive materials.
SECURED STORAGE: An area which is protected from weather and is theft-resistant and in compliance
with the uniform fire code.
SEISMOGRAPH: An instrument that is useful in monitoring blasting operations for recording records
ground vibration. Particle velocity, displacement or acceleration is generally measured and
recorded in three mutually-perpendicular directions
elay of the
explosive materials.
SECURED STORAGE: An area which is protected from weather and is theft-resistant and in compliance
with the uniform fire code.
SEISMOGRAPH: An instrument that is useful in monitoring blasting operations for recording records
ground vibration. Particle velocity, displacement or acceleration is generally measured and
recorded in three mutually-perpendicular directions.
SEMI-CONDUCTIVE HOSE: A hose used for pneumatic conveying of explosive materials, having an
electrical resistance high enough to limit flow of stray electric currents to safe levels yet not so
high as to prevent drainage of static electric charges to ground. A hose of not more than 2
megohms resistance over its entire length and of not less than 1,000 ohms per foot (3280 ohms
per meter) meets this requirement.
SENSITIVITY: A physical characteristic of an explosive material classifying its ability to be initiated upon
receiving an external impulse, such as heat impact, shock, friction, static electricity, stray current
or other influence which can cause explosive decomposition.
SHALL: Means that the rule establishes a minimum standard which is mandatory.
SHOCK TUBE: A small diameter plastic tube containing reactive material used for initiating detonators. It
contains only a limited amount of reactive material such that the energy that is transmitted
through the tube by means of a detonation wave is guided through and confined within the walls
of the tube.
SITE: Area where active blasting is taking place or the location of explosives storage magazines.
SLURRY/WATER GEL: An explosive material containing substantial portions of a liquid, oxidizers, and
fuel, plus a thickener.
SMALL ARMS AMMUNITION: Any cartridge for a shotgun, rifle, pistol, or revolver, and cartridges for
propellant-actuated power device and industrial guns. Military-type ammunition containing
explosive bursting charges, or any incendiary, tracer, spotting, or pyrotechnic projectile is
excluded from this definition
ial containing substantial portions of a liquid, oxidizers, and
fuel, plus a thickener.
SMALL ARMS AMMUNITION: Any cartridge for a shotgun, rifle, pistol, or revolver, and cartridges for
propellant-actuated power device and industrial guns. Military-type ammunition containing
explosive bursting charges, or any incendiary, tracer, spotting, or pyrotechnic projectile is
excluded from this definition.
SOFTWOOD: Douglas Fir, or other wood of equal bullet-resistance, free of loose knots, wind shakes, or
similar defects.

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SPACING: The distance between boreholes. In bench blasting, the distance is measured parallel to the
free face and perpendicular to the burden.
STATIC ELECTRICITY: Electric charge at rest on a person or object. It is most often produced by the
contact and separation of dissimilar insulating materials.
STEMMING: Inert material placed in a borehole on top of or between separate charges of explosive
material, used for the purpose of confining explosive materials or to separate charges of
explosive material in the same borehole.
STEEL: General purpose (hot or cold rolled) low carbon steel, such as specification ASTM A366 or
equivalent.
STORAGE: The safekeeping of explosives in unattended magazines.
TEMPORARY STORAGE MAGAZINE: A Type 1, Type 2, Type 4, or Type 5 magazine that is at a
location for a period not to exceed 90 days.
THEFT-RESISTANT: Construction designed to deter illegal entry into facilities used for the storage of
explosive material.
TWO-COMPONENT: See binary explosive.
TRANSPORTATION: The conveyance or carrying of explosives from one place to another by means of a
motorized vehicle or device.
TYPE I EXPLOSIVES PERMIT: A permit issued by the Division to individuals who possess and control
explosive materials during the use, manufacture, acquisition, purchase, sale, distribution, storage,
transportation, or disposal of explosives materials
T: See binary explosive.
TRANSPORTATION: The conveyance or carrying of explosives from one place to another by means of a
motorized vehicle or device.
TYPE I EXPLOSIVES PERMIT: A permit issued by the Division to individuals who possess and control
explosive materials during the use, manufacture, acquisition, purchase, sale, distribution, storage,
transportation, or disposal of explosives materials.
TYPE II EXPLOSIVES PERMIT: A permit issued by the Division to corporations, companies,
partnerships, firms, individuals operating a business, associations, or state or local government
agencies involved in the use, purchase, sale, manufacture, transportation, acquisition, distribution
or disposal of explosives materials.
TYPE III EXPLOSIVES PERMIT: A permit issued by the Division to corporations, companies,
partnerships, firms, individuals operating a business, associations, or state or local government
agencies for the storage of explosives in approved magazines.
WEATHER-RESISTANT: Construction designed to offer reasonable protection against weather.
U.S. DEPARTMENT OF TRANSPORTATION EXPLOSIVE CLASSIFICATIONS FOR THE
TRANSPORTATION OF EXPLOSIVES:
Division 1.1:
Explosives that have a mass explosion hazard
Division 1.2:
Explosives that have a projection hazard but not a mass explosion hazard
Division 1.3:
Explosives that have a fire hazard and either a minor blast hazard or minor
projection hazard or both, but not a mass explosion hazard
Division 1.4:
Explosives that present minor explosion hazard

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ve a mass explosion hazard
Division 1.2:
Explosives that have a projection hazard but not a mass explosion hazard
Division 1.3:
Explosives that have a fire hazard and either a minor blast hazard or minor
projection hazard or both, but not a mass explosion hazard
Division 1.4:
Explosives that present minor explosion hazard

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Division 1.5:
Very insensitive explosives that have a mass explosion hazard, but are so
insensitive that there is little probability of initiation or of transition from burning to
detonation under normal conditions of transport (Blasting Agents)
ARTICLE 2
GENERAL REQUIREMENTS
Section 2-1
Miscellaneous Requirements
(A)
No person shall sell, display, or expose for sale an explosive or blasting agent on any public way
or public place.
(B)
No person shall sell, deliver, or give possession and control of explosives materials to any person
not in possession of a valid permit except an authorized for-hire commercial carrier transporting
between two valid permittees.
(C)
No person shall sell, purchase, store, transport, use or otherwise possess or control any
explosive material without the authorization of the lawful possessor of the explosive material. The
lawful possessor shall file a written list of authorized Type I permittees with the Division and shall
notify the Division of any changes in writing.
(D)
Any theft or loss of explosives or blasting agents, whether from a storage magazine or area, a
vehicle in which they are being transported, or from a site where they are being used, or from any
other location, shall immediately (but in no event later than 24 hours) be reported by the person
having control of such explosives or blasting agents to the local sheriff or local police, the Bureau
of Alcohol, Tobacco, Firearms, and Explosives (ATF), and the Division
m a storage magazine or area, a
vehicle in which they are being transported, or from a site where they are being used, or from any
other location, shall immediately (but in no event later than 24 hours) be reported by the person
having control of such explosives or blasting agents to the local sheriff or local police, the Bureau
of Alcohol, Tobacco, Firearms, and Explosives (ATF), and the Division.
(E)
All individuals, corporations, companies, firms, partnerships, associations, or state or local
government agencies conducting an operation or activity requiring the use, possession,
purchase, sale, manufacturing, storage, acquisition, distribution, transportation or disposal of any
explosive materials shall:
(1)
Obtain a permit from the Division prior to conducting such operation or activity and shall
be responsible for the results and any other consequences of any loading and firing of
the explosive materials; and
(2)
NOT delegate either performance of the blast or accountability for such performance to
another person(s).
(F)
The Division, Public Safety Section and local law enforcement authority shall be notified
immediately by the permittee of any accident, explosion, fire, or misuse of explosives which
occurs in connection with the use, manufacture, possession, sale, transportation, storage or
disposal of explosives that results in the loss of life, personal injury, or damage to any property.
(G)
The Division may inspect the site where any accident, explosion, fire, misuse, theft or loss of
explosives occurred.
(H)
A Division representative may enter during normal business hours, without advance notice, the
premises of any permittee, including places of storage or use, for the purpose of inspecting or
examining any records or documents required under these regulations and any explosives
material used or stored at the premises.

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.
(H)
A Division representative may enter during normal business hours, without advance notice, the
premises of any permittee, including places of storage or use, for the purpose of inspecting or
examining any records or documents required under these regulations and any explosives
material used or stored at the premises.

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(I)
All corporations, companies, partnerships, firms, individuals operating a business, associations,
or state or local government agencies conducting blasting operations shall have a certificate of
liability insurance, be named as an also insured on another liability insurance policy, or shall have
obtained a signed release of liability for damages from blasting operations from all parties who
may be potentially affected by blasting operations. The U.S. Forest Service (USFS) should be
notified prior to all blasting activities that occur on USFS land.
ARTICLE 3
EXPLOSIVES PERMIT
Section 3-1
Basic Legal Obligations
(A)
Except as specifically allowed by these regulations, it is unlawful for any person to use, possess
and control, manufacture, purchase, sell, store, transport, or dispose of any explosive material
without possessing a valid permit from the Division (18-12-109 (2) and 9-7-101, et seq., C.R.S.).
Section 3-2
General Requirements
(A)
Permits issued under these rules and regulations shall be dated and numbered. Each permit will
indicate class of permit, and shall be valid for up to 36 months after the date of issue unless
revoked or suspended by the Division, and shall be renewed on or before the expiration date. The
application for renewal of permits shall be made to the Division prior to the renewal date to avoid
possible lapse of said permit. The Division shall send a notice a minimum of 60 days prior to the
expiration date
te class of permit, and shall be valid for up to 36 months after the date of issue unless
revoked or suspended by the Division, and shall be renewed on or before the expiration date. The
application for renewal of permits shall be made to the Division prior to the renewal date to avoid
possible lapse of said permit. The Division shall send a notice a minimum of 60 days prior to the
expiration date. The failure of the permittee to receive timely notice from the Division shall not
excuse the permittee’s requirement to submit a renewal application not less than 30 days prior to
the expiration date.
(B)
Upon notice from the Division or any law enforcement agency having jurisdiction, a person using,
manufacturing, purchasing, selling, storing, transporting, disposing, or otherwise in possession
and control of any explosives without a permit shall immediately surrender any and all such
explosives to the Division or to the law enforcement agency designated by the Division.
(C)
The Division shall require, as a condition precedent to the original issuance of any explosives
permit, fingerprinting and criminal history record checks for every individual applicant.
Fingerprints shall be submitted on forms provided to the applicant by the Division. If a Type I
permit holder submits a complete application for renewal, fingerprint cards are not required
unless requested by the Division. As a condition precedent to renewal of any explosives permit
for an individual, a criminal background check is required.
(D)
No person shall withhold information or make any false statement or fictitious oral or written
statement or furnish or exhibit any false, fictitious, or misrepresented identification, intended or
likely to deceive for the purpose of obtaining or retaining an explosives permit.
(E)
No person shall knowingly make any false entry in any record that a permittee is required to keep
pursuant to these regulations
shall withhold information or make any false statement or fictitious oral or written
statement or furnish or exhibit any false, fictitious, or misrepresented identification, intended or
likely to deceive for the purpose of obtaining or retaining an explosives permit.
(E)
No person shall knowingly make any false entry in any record that a permittee is required to keep
pursuant to these regulations.
(F)
When a permit has expired and has not been renewed, the applicable County Sheriff’s
Department shall be notified by the Division, and the Type II permittee must turn over any
remaining explosives which the permittee is in possession of directly to the Division or the law
enforcement agency designated by the Division, or in the presence of the Division or the law
enforcement agency designated by the Division, surrender control of all remaining explosives
which the permittee is in possession of to a valid Type II permittee.
(G)
All permittees shall take every reasonable precaution to protect their permits from loss, theft,
defacement, destruction, or unauthorized duplication. The loss or theft of any permit shall be
reported immediately to the local law enforcement agency and to the Division.

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Section 3-3
Revocation, Suspension, or Denial of Explosives Permits
(A)
The Division shall not issue a permit to any person who:
(1)
Is under 21 years of age;
(2)
Has been convicted in any court of a crime punishable by imprisonment for a term
exceeding 1 year;
(3)
Is currently charged with, or has a charge pending for a crime punishable by
imprisonment for a term exceeding 1 year;
(4)
Is a fugitive from justice;
(5)
Has been convicted of a crime involving the illegal distribution of marijuana, any
depressant or stimulant drug, or narcotic drug, perjury, fraud, false swearing, or bomb
threats;
crime punishable by imprisonment for a term
exceeding 1 year;
(3)
Is currently charged with, or has a charge pending for a crime punishable by
imprisonment for a term exceeding 1 year;
(4)
Is a fugitive from justice;
(5)
Has been convicted of a crime involving the illegal distribution of marijuana, any
depressant or stimulant drug, or narcotic drug, perjury, fraud, false swearing, or bomb
threats;
(6)
Has been adjudicated developmentally disabled, mentally unstable, mentally ill or insane,
or to be incompetent due to any mental disability or disease;
(7)
Has been discharged from the armed forces under dishonorable conditions;
(8)
Is an alien, other than an alien who is lawfully admitted for permanent residence or an
alien who has obtained either a letter of clearance or letter of restoration of explosives
privileges from the ATF; or
(9)
Having been a citizen of the United States, has renounced citizenship.
(B)
The Division shall deny or revoke and not renew the permit of any person who is currently
charged with, has a charge pending or has been convicted of any of the following offenses:
(1)
A crime punishable by imprisonment for a term exceeding 1 year;
(2)
A crime involving the illegal distribution of marijuana, any depressant or stimulant drug, or
narcotic drug, bomb threats, perjury, fraud, or false swearing, including making a false
affidavit or statement under oath to the Division in an application or report; or
(3)
A crime relating to use, manufacturing, sale, transportation, possession, or disposal of
explosives.
(C)
The Division may revoke and not renew the permit of any person when the violation of any law or
regulation relating to explosive material or the misuse of explosive materials results in loss of life
or serious injury to any person.
(D)
A permit may be denied, suspended, or revoked by the Division because of, but not limited to the
following:
(1)
Unlawful use of, or addiction to, alcohol, narcotics or illegal drugs;
evoke and not renew the permit of any person when the violation of any law or
regulation relating to explosive material or the misuse of explosive materials results in loss of life
or serious injury to any person.
(D)
A permit may be denied, suspended, or revoked by the Division because of, but not limited to the
following:
(1)
Unlawful use of, or addiction to, alcohol, narcotics or illegal drugs;
(2)
Failure to exercise reasonable safeguards resulting in hazard to life, health, or property;
(3)
Failure to show legitimate use for a permit;
(4)
Failure to show sufficient proof of training or prior experience with explosives;

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(5)
Non-compliance with an order issued by the Division within the time specified in such
order;
(6)
Proof that the permittee or applicant advocates, or knowingly belongs to any organization
or group that advocates the violent overthrow of, or violent action against any federal,
state, or local government or institution;
(7)
Failure to comply with the Colorado Explosives Act, these regulations and Bureau of
Alcohol, Tobacco, Firearms and Explosives (ATF), U.S. Department of Justice,
Publication ATF P 5400.7, ATF- Explosives Law and Regulations (2012);
(8)
Giving false information or a misrepresentation being willfully made to the Division and its
investigators or inspectors to obtain or maintain a permit;
(9)
Making a false affidavit or statement under oath to the Division in an application or report;
or
hol, Tobacco, Firearms and Explosives (ATF), U.S. Department of Justice,
Publication ATF P 5400.7, ATF- Explosives Law and Regulations (2012);
(8)
Giving false information or a misrepresentation being willfully made to the Division and its
investigators or inspectors to obtain or maintain a permit;
(9)
Making a false affidavit or statement under oath to the Division in an application or report;
or
(10)
Other factors which, at the discretion of the Division, indicate an unfitness to hold an
explosive permit in compliance with state and federal law and these regulations.
(E)
The Division shall revoke the permit of any person adjudicated to be mentally unstable, mentally
ill or insane, or to be incompetent due to any mental disability or disease. The Division shall not
renew the permit until the person has been legally restored to competency.
Section 3-4
Procedure on Revocation, Suspension, or Denial of Explosives Permit
(A)
[Expired 05/15/2020 per House Bill 20-1179]
(B)
[Expired 05/15/2019 per Senate Bill 19-168]
(C)
The period of denial, suspension, or revocation shall be within the sound discretion of the
Division.
(D)
[Expired 05/15/2020 per House Bill 20-1179]
(E)
Any person aggrieved by a decision after a hearing may seek judicial review pursuant to the
provisions of 24-4-106 C.R.S.
(F)
Any person who has been denied a permit may not reapply to the Division for an explosives
permit within one year of the decision, unless exception is made by the Division and the applicant
establishes a substantial change in circumstances to indicate fitness to hold an explosive permit
in accordance with the requirements of these regulations, State and Federal law.
(G)
In case of revocation or suspension of a permit, the Division shall notify all vendors of explosives
of such revocation or suspension.
Section 3-5
Permit Types and Classifications
Permits are separated according to type
tablishes a substantial change in circumstances to indicate fitness to hold an explosive permit
in accordance with the requirements of these regulations, State and Federal law.
(G)
In case of revocation or suspension of a permit, the Division shall notify all vendors of explosives
of such revocation or suspension.
Section 3-5
Permit Types and Classifications
Permits are separated according to type. A permit may have more than one designated classification;
however, for each and every classification requested, the applicant must show legitimate use and
qualifications.

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3-5-1
Type I Explosives Permit
(A)
All individuals who possess and control explosive materials shall have a valid Type I Explosives
Permit issued by the Division.
(B)
The requirements of permitting a Type I permittee shall be:
(1)
An individual who possesses and controls explosive materials during the use,
transportation, storage, distribution, manufacturing, sale, acquisition, or purchase of
explosive materials.
(2)
An individual who makes any or all of the following decisions:
(i)
Decides total quantity of explosives used;
(ii)
Decides borehole size, spacing, or depth;
(iii)
Decides quantity of explosives in each borehole or charge;
(iv)
Decides initiation system to be used;
(v)
Decides timing delays to be used.
(3)
An individual who directly supervises all personnel assisting in the use of explosives and
supervises all personnel in training.
(4)
An individual who shall also be physically present during the use of explosives, at the
point of initiation when a charge is detonated and either initiates the detonation or gives
the order to initiate the detonation of the charge.
(C)
The classification of permits the applicant may apply for shall be:
(1)
Construction
ssisting in the use of explosives and
supervises all personnel in training.
(4)
An individual who shall also be physically present during the use of explosives, at the
point of initiation when a charge is detonated and either initiates the detonation or gives
the order to initiate the detonation of the charge.
(C)
The classification of permits the applicant may apply for shall be:
(1)
Construction
(i)
Applicant must also apply for a Type I transporter permit, or provide to the
Division a written plan documenting the manner in which explosives shall be
legally transported to and from construction sites.
(2)
Construction Limited
(i)
Applicant may use or possess class 1.4 or 1.5 explosives or binary products only.
(3)
Possession
(i)
An individual who possesses explosive materials during the storage, distribution,
component assembly, manufacturing, sale, acquisition or purchase of explosive
materials. This endorsement does not allow an individual to exercise
responsibilities as described in 3-5-1 (B) (2) through (4).
(ii)
The requirement listed in 3-5-1(D)(3) does not apply to this classification.
(4)
Quarry Operations
(5)
Avalanche Mitigation

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(6)
Geophysical Research
(7)
Transporter
(i)
Applicant must submit a copy of his/her Commercial Driver’s License with the
Hazardous Material Endorsement included on it.
(ii)
Required for the transportation of explosive materials and blasting agents in
quantities required to be placarded across or over roads within the state.
(8)
Well Perforation
(9)
Manufacturer
(10)
Special (special use or possession and control as described on the permit, including but
not limited to fabrication, research and development, rock-breaker cartridges, demolition,
law enforcement, unexploded ordnance disposal, purchasing agent, sales agent,.)
(D)
Type I permittee qualifications
(1)
The Type I permittee shall be able to understand and give written and oral orders.
Manufacturer
(10)
Special (special use or possession and control as described on the permit, including but
not limited to fabrication, research and development, rock-breaker cartridges, demolition,
law enforcement, unexploded ordnance disposal, purchasing agent, sales agent,.)
(D)
Type I permittee qualifications
(1)
The Type I permittee shall be able to understand and give written and oral orders.
(2)
The Type I permittee shall be qualified by reason of training, knowledge, and experience
in the field of using, transporting, possessing, storing and handling of explosives, and
have a working knowledge of state, federal and local laws and regulations which pertain
to explosives.
(3)
The Type I permit applicant shall be required to submit proof of not less than one year of
explosives experience or on the job training in explosives specific to at least one
classification of permit. Avalanche mitigation applicants must meet training requirements
as defined in Section 7-2.
(4)
The Type I permit applicant shall be required to submit proof of not less than six months
of explosive experience or on-the-job training in explosives specific to each additional
classification of permit applied for.
(5)
The Type I permittee shall be knowledgeable and competent in the use of each type of
blasting method and initiation system used.
(6)
A Type I permit applicant for a transportation classification permit only shall have a valid
commercial driver’s license with a hazardous materials endorsement and experience in
the transportation of explosive materials for a period of not less than ninety days.
(E)
Type I permit limitations
(1)
A Type I permit shall be limited to possession and control of explosives while authorized
by the Type II permittee(s) for whom the Type I permittee is employed or otherwise
associated.
ave a valid
commercial driver’s license with a hazardous materials endorsement and experience in
the transportation of explosive materials for a period of not less than ninety days.
(E)
Type I permit limitations
(1)
A Type I permit shall be limited to possession and control of explosives while authorized
by the Type II permittee(s) for whom the Type I permittee is employed or otherwise
associated.
(2)
The Type I permit shall be placed on inactive status by the Division upon notification in
accordance with Section 3-9(D) that the Type I permittee is no longer authorized to
possess and control explosives for a Type II permittee.

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(3)
Upon receipt of written notification by a Type II permittee of authorization and the return
of the original Type I permit card, the Division shall return the Type I permit to active
status and issue an updated permit card reflecting the change in employment or
association.
(4)
An active status Type I permit card shall be carried by the Type I permittee at all times
when using, transporting, or possessing explosives.
3-5-2
Type II Explosives Permit
(A)
Corporations, companies, partnerships, firms, individuals operating a business, associations, or
state or local government agencies involved in the use, purchase, sale, manufacture,
transportation, or disposal of explosives shall have a valid Type II Explosives Permit.
(B)
Only one Type II permit shall be required of any corporation, company, partnership, firm,
individual operating a business, association, or state or local government agency, and may be
issued for all or any of the following classifications:
overnment agencies involved in the use, purchase, sale, manufacture,
transportation, or disposal of explosives shall have a valid Type II Explosives Permit.
(B)
Only one Type II permit shall be required of any corporation, company, partnership, firm,
individual operating a business, association, or state or local government agency, and may be
issued for all or any of the following classifications:
(1)
CLASSIFICATION AS A MANUFACTURER OF EXPLOSIVES authorizes the
possession, manufacture, and purchase of materials required in the process of
manufacturing the finished product. A corporation, company, partnership, firm, individual
operating a business, association, or state or local government agency that combines
compounds to manufacture an explosive is engaged in the business of manufacturing
explosives and shall be responsible for compliance with the provisions of 9-6-105 C.R.S.,
the Explosives Act, 9-7-101, et seq. C.R.S., and any rules and regulations promulgated
thereunder.
(2)
CLASSIFICATION AS A DEALER OF EXPLOSIVES authorizes the purchase,
possession, and resale of explosives or blasting agents. A dealer permit is required of
jobbers, wholesalers, distributors, dealers, and retailers, whether or not they physically
handle, store, or have possession of the explosives or blasting agents. This permit is also
required for all nonresidents who desire to sell explosives within the State of Colorado.
(3)
CLASSIFICATION AS A PURCHASER OF EXPLOSIVES authorizes the purchase or
acquisition and possession of explosives and blasting agents.
(4)
CLASSIFICATION AS A PURCHASER LIMITED authorizes the purchase or acquisition
and possession of 1.4 and 1.5 classes of explosives and binary products.
This permit is also
required for all nonresidents who desire to sell explosives within the State of Colorado.
(3)
CLASSIFICATION AS A PURCHASER OF EXPLOSIVES authorizes the purchase or
acquisition and possession of explosives and blasting agents.
(4)
CLASSIFICATION AS A PURCHASER LIMITED authorizes the purchase or acquisition
and possession of 1.4 and 1.5 classes of explosives and binary products.
(5)
CLASSIFICATION AS A USER OF EXPLOSIVES authorizes the possession and use of
explosives and blasting agents by a corporation, company, partnership, firm, individual
operating a business, association, or state or local government agency conducting an
operation or activity which requires the use of such materials. User permits shall be
issued for the following types of operations:
(i)
Construction
(a)
Applicant must also apply for a Type II transportation permit, or provide
to the Division a written plan documenting the manner in which
explosives shall be legally transported to and from construction sites.
(ii)
Construction Limited
(a)
Applicant’s use and possession of explosives is limited to 1.4 and 1.5
classes of explosives and binary products.

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(iii)
Quarry Operations
(iv)
Avalanche Mitigation
(v)
Geophysical Research
(vi)
Well Perforation
(vii)
Manufacturer
(viii)
Special (special use or possession and control as described on the permit,
including but not limited to fabrication, research and development, rock-breaker
cartridges, demolition, law enforcement, unexploded ordnance disposal,
purchasing agent, , sales agent, etc.)
(6)
A TRANSPORTATION permit authorizes the transportation of explosive materials and
blasting agents in quantities that are required to be placarded across or over roads within
the state when such transportation is in compliance with federal, state and local
transportation laws and regulations.
idges, demolition, law enforcement, unexploded ordnance disposal,
purchasing agent, , sales agent, etc.)
(6)
A TRANSPORTATION permit authorizes the transportation of explosive materials and
blasting agents in quantities that are required to be placarded across or over roads within
the state when such transportation is in compliance with federal, state and local
transportation laws and regulations.
(i)
A copy of a Hazardous Materials Transport Permit issued by the Public Utilities
Commission (PUC) shall be submitted with the application.
3-5-3
Type III Storage Permit
(A)
Corporations, companies, partnerships, firms, individuals operating a business, associations, or
state or local government agencies that store explosives shall have a valid Type III permit.
(B)
Storage permits shall be issued to those persons who have approved storage magazine sites.
(C)
Approval by the Division of a permanent storage magazine site shall include a site inspection by a
Division representative. Written notification of the location of the permanent storage magazine
site shall be made to the applicable fire district or department.
(D)
Approval by the Division of temporary magazine sites shall be made for a period not to exceed 90
days upon written notification to the Division as to the location of the magazine site, the type(s)
and supplier of the magazines being utilized, the type and quantity of explosives being stored and
proof of written notification of the location of the storage magazine to the applicable fire district or
department and county sheriff.
(E)
An inspection shall be required at each permanent storage magazine site, including any added
permanent storage magazine sites, prior to the renewal of the Type III permit.
Section 3-6
Permit Application
(A)
Application for each type of original permit or renewal shall be made on forms available from the
Division and shall provide the following information:
(1)
The name and address of the applicant
(2)
Front and reverse side copies of applicant’s driver’s license
site, including any added
permanent storage magazine sites, prior to the renewal of the Type III permit.
Section 3-6
Permit Application
(A)
Application for each type of original permit or renewal shall be made on forms available from the
Division and shall provide the following information:
(1)
The name and address of the applicant
(2)
Front and reverse side copies of applicant’s driver’s license
(3)
The reason for desiring to use, purchase, sell, store, manufacture, transport or dispose
of explosives

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(4)
The applicant’s citizenship, if the applicant is an individual
(5)
If the Type II applicant is a partnership, the names and addresses of the Type I permitted
partners and their citizenship
(6)
If the Type II or Type III permit applicant is a corporation, company, firm, association or
state or local government agency, the names and addresses of the Type I permitted
owner(s), manager(s) or other designated individual thereof, and their citizenship
(7)
Where application for a Type II explosives permit is made in the name of a corporation,
company, partnership, association, state or local government agency or firm, the
application shall be signed by the permitted owner(s), partner(s), manager(s) or other
designated individual(s) who will have access to explosive materials and be directly
responsible for compliance with the provisions of the Explosives Act, 9-7-101, et seq.
C.R.S., and any rules and regulations promulgated thereunder
(8)
The name(s) of the valid Type II permittee the Type I permit applicant is employed by or
associated with, and for whom the applicant will possess and control explosive materials
(9)
Evidence that the Type I applicant is sufficiently trained and experienced in the use,
transportation, storage, purchase, sale, disposal or manufacturing of explosives
y rules and regulations promulgated thereunder
(8)
The name(s) of the valid Type II permittee the Type I permit applicant is employed by or
associated with, and for whom the applicant will possess and control explosive materials
(9)
Evidence that the Type I applicant is sufficiently trained and experienced in the use,
transportation, storage, purchase, sale, disposal or manufacturing of explosives
(10)
Such other pertinent information as the Division shall require to effectuate the purpose of
these regulations
(B)
Application forms may be obtained from the Division.
(C)
The submission of an application shall be a certification by the Type I permit applicant that the
applicant, or Type I permittee acting as the responsible person for the Type II or Type III permit
applicant, has read, understands and accepts these regulations and shall comply with all
requirements of these regulations.
(D)
Payment of the application fee for a period of 36 months, according to the following list, must
accompany each application for a permit.
Type I Explosives Permit:
$110.00
Type II Explosives Permit:
$225.00
Type III Explosives Permit:
$375.00
(E)
A check or money order for the fee shall be made payable to the Division and submitted to the
address provided on the application.
(F)
The applicant may be asked to supply additional information requested by the Division in order to
verify statements in an application or in order to facilitate a Division inquiry prior to the issuance
or renewal of a permit.
(G)
Each Type II application for a manufacturer or dealer permit shall be accompanied by a copy of
the applicant’s current federal license issued by The Bureau of Alcohol, Tobacco, Firearms and
Explosives.
(H)
The Type II application for a manufacturer or dealer permit shall list the location(s) in Colorado
where explosives will be manufactured or from where explosives will be sold. This shall not be
required for the manufacturers of binary explosives.

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cense issued by The Bureau of Alcohol, Tobacco, Firearms and
Explosives.
(H)
The Type II application for a manufacturer or dealer permit shall list the location(s) in Colorado
where explosives will be manufactured or from where explosives will be sold. This shall not be
required for the manufacturers of binary explosives.

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(I)
A valid Type I permit shall be held by at least one of the individual owners, partners, managers or
other designated individual for each classification of use requested on the Type II Explosives
Permit application.
(J)
Each application for an original Type II permit or a renewal permit shall be accompanied by a list
of valid Type I permittees authorized to possess and control explosives on behalf of the Type II
permittee. The Division shall be notified of any changes of such Type I permittees.
(K)
An application for a Type III storage permit shall include the location of all storage facilities and
types of magazines to be utilized.
(L)
Each application for a Type II permit to purchase shall have a list of Type I permittees authorized
to order and receive explosives on behalf of the purchaser. The list of Type I permittees
authorized to order and receive explosives on behalf of the purchaser shall be provided to dealers
prior to the purchase of explosives.
(M)
In addition to the application form, all new Type I applicants, all Type I applicants requesting a
change in classification of their permit, and all Type I applicants who have not renewed their
permit within 60 days after expiration will be required to obtain a score of not less than 90% on a
written examination prepared and administered by the Division. A Type I applicant failing the
examination may retake the examination at any time. A Type I applicant failing the examination a
second time must wait for a period of at least 14 days before retaking the exam
ts who have not renewed their
permit within 60 days after expiration will be required to obtain a score of not less than 90% on a
written examination prepared and administered by the Division. A Type I applicant failing the
examination may retake the examination at any time. A Type I applicant failing the examination a
second time must wait for a period of at least 14 days before retaking the exam.
(N)
All Type I applicants renewing their permits are required to obtain a score of not less than 90% on
a written examination prepared and administered by the Division every 3 years or provide proof of
16 hours attendance during the previous 3 years in a training course approved by the Division.
(O)
The Division shall obtain a photograph of Type I permit applicants.
(P)
Upon receipt of an incomplete application or an application requiring additional information, the
applicant will be notified of the deficiency or additional requirements. If the deficiency is not
corrected or if the Division does not receive the additional information within 180 days following
the date of notification, the application shall be considered abandoned and the Division shall not
retain the application.
(Q)
Upon receipt of a completed Type I application the applicant will be sent an exam notification. If
the Type I permit applicant fails to complete the exam within 180 days of the exam notification,
the application shall be considered abandoned and the Division shall not retain the application.
(R)
A Type I renewal applicant must complete the exam, if required, within 180 days of the date of the
renewal notification letter sent by the Division. Should the renewal applicant fail to complete the
exam within 180 days of the date of the renewal letter, the application shall be considered
abandoned and the Division shall not retain the application.
Section 3-7
Protection and Exhibition of Permits
Permittees shall take every reasonable precaution to protect their permits from loss, theft, defacement,
destruction or unauthorized duplication
on. Should the renewal applicant fail to complete the
exam within 180 days of the date of the renewal letter, the application shall be considered
abandoned and the Division shall not retain the application.
Section 3-7
Protection and Exhibition of Permits
Permittees shall take every reasonable precaution to protect their permits from loss, theft, defacement,
destruction or unauthorized duplication.
The loss or theft of any permit shall be reported immediately to the local law enforcement agency and to
the Division.
Permits, or copies thereof, shall be exhibited in conformity with the following provisions:

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(A)
Manufacturer - the permit shall be posted at the facility where explosives or blasting agents are
manufactured. Manufacturing permits for bulk mix trucks shall be posted in the office of the
permittee.
(B)
Dealer- the permit shall be posted in the office at the location where explosives or blasting agents
are sold.
(C)
Purchaser - the permit or a copy of the permit must be displayed at magazine/warehouse where
explosives or blasting agents are received and stored.
(D)
User - the permit shall be posted in the main office of explosives operations.
(E)
Storage - a copy of the permit must be displayed at the office, warehouse, or in at least one
magazine where explosives or blasting agents are received for storage.
(F)
A Type I permit card shall be carried by the Type I permittee at all times when using, transporting,
or possessing explosives and presented to representatives of the Division and law enforcement
officials, upon request, along with valid personal identification.
Section 3-8
Records of Transactions
All permittees shall keep a complete record of all transactions in, or operations involving explosives for
five years following the year in which the transactions or operations involving explosives or blasting
agents occurred
es and presented to representatives of the Division and law enforcement
officials, upon request, along with valid personal identification.
Section 3-8
Records of Transactions
All permittees shall keep a complete record of all transactions in, or operations involving explosives for
five years following the year in which the transactions or operations involving explosives or blasting
agents occurred. The permittees must retain copies thereof and furnish such copies to the Division during
normal business hours upon request. When the permittee is employed by another person who holds a
valid permit, the records of the employer shall be deemed to satisfy these record-keeping requirements.
3-8-1
Manufacturer
The records of a person having a permit to manufacture explosives or blasting agents shall include the
following information:
(A)
Amount and kinds manufactured.
(B)
Amounts and kinds acquired for manufacture.
(C)
Names and addresses of the persons from whom acquired and dates on which acquired.
(D)
Amount and kinds sold or otherwise disposed of.
(E)
Names, addresses and permit numbers of persons to whom sold or otherwise disposed of and
dates of the sales or other dispositions.
(F)
Amounts and kinds on hand at each location at the end of each day on which there are
transactions or operations.
(G)
The records kept in accordance with Section 6-1(U) shall meet the record requirements for the
manufacture of binary products.
3-8-2
Dealer
The records of a person having a permit for dealer shall include the following information:
(A)
Amounts and kinds acquired.

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each day on which there are
transactions or operations.
(G)
The records kept in accordance with Section 6-1(U) shall meet the record requirements for the
manufacture of binary products.
3-8-2
Dealer
The records of a person having a permit for dealer shall include the following information:
(A)
Amounts and kinds acquired.

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(B)
Names and addresses of persons from whom acquired and dates on which acquired.
(C)
Amounts and kinds sold or otherwise disposed of.
(D)
Names, addresses, and permit numbers of persons to whom sold or otherwise disposed of and
the dates of sales or other dispositions. This requirement shall not apply to the sale of smokeless
powder.
3-8-3
Type II Permit
A person holding a Type II permit to use explosives or blasting agents shall maintain a record of all
explosive material transactions including a daily inventory record of all explosives received, removed
from, or returned to each storage magazine in accordance with Section 4-1(F)(6) of these regulations,
and records completed by Type I permittees in accordance with Section 6-1(U) and Section 7-4(B)(11).
3-8-4
Type I Permit
Type I permittees shall complete and sign records of explosives used in accordance with Section 6-1(U)
or Section 7-4(B)(11) of these regulations.
Section 3-9
Permit Changes
The Division shall be notified immediately when:
(A)
There is a change in the permittee’s permanent address.
(B)
There is a change in the name of a permittee, or a change in the Type I permitted owner(s),
manager(s), or other designated individual(s) acting as the responsible person of any Type II or
Type III permittee.
(C)
The location of an explosives storage facility is changed or added and the address of the new
location shall be provided.
(D)
There is a change in the Type II permitted employer or association for whom the Type I permittee
will possess and control explosive materials
d owner(s),
manager(s), or other designated individual(s) acting as the responsible person of any Type II or
Type III permittee.
(C)
The location of an explosives storage facility is changed or added and the address of the new
location shall be provided.
(D)
There is a change in the Type II permitted employer or association for whom the Type I permittee
will possess and control explosive materials.
(E)
There is a change in the Type I permitted individuals authorized to possess and control
explosives on behalf of a Type II permittee.
(F)
A Type I Permit holder is currently charged with, has a pending charge of or has been convicted
of any of the offenses listed in 3-3 (B) 1-3.
Section 3-10
Explosives Sales to Permittees
(A)
When an order for explosives is placed by a purchaser, the dealer shall request proper
authorization and identification from the purchaser and shall record the purchaser’s permit
number on the sales record.
(B)
The purchaser shall provide to the dealer a list of Type I permittees authorized to order and
receive explosives on behalf of the purchaser. A dealer shall not distribute explosive materials to
a company or individual on the order of a person who does not appear on the most current list of
authorized Type I permittees, and if the person does appear on the list, the dealer shall verify the
identity of such person.

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receive explosives on behalf of the purchaser. A dealer shall not distribute explosive materials to
a company or individual on the order of a person who does not appear on the most current list of
authorized Type I permittees, and if the person does appear on the list, the dealer shall verify the
identity of such person.

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24
(C)
The authorized Type I permittee who physically receives the purchased explosives shall present
his permit and proper identification to the dealer. The receiver of the explosives shall sign a
receipt documenting the explosives received with his legal signature and permit number.
(D)
All such receipts shall be retained by the dealer for not less than 5 years from the date of
purchase.
(E)
The dealer shall keep a record of all explosives purchased and sold as required by federal
regulations.
(F)
Any package containing any explosive or blasting agent that is sold or is delivered for shipment
by a dealer shall be properly labeled in accordance with 9-6-105 C.R.S. to indicate its explosive
classification.
ARTICLE 4
STORAGE OF EXPLOSIVE MATERIALS
Section 4-1
General Requirements
(A)
All explosive materials, special industrial explosive materials, and any newly developed and
unclassified explosive materials shall be kept in magazines which meet the requirements as
defined in these regulations, unless they are in the process of manufacture, being physically
handled in the operating process, being used, or being transported to a place of storage or use.
Refer to Section 4-3 for a summary of storage requirements.
(B)
High explosives shall not be stored unattended outdoors, or in any building or structure, except in
a Type 1 or Type 2 magazine.
(C)
Detonators that will not mass detonate (1.4s and 1.4b classification) and are in the original and
closed shipping container may also be stored in a Type 4 magazine.
(D)
The requirements for the storage of binary explosives shall be:
mmary of storage requirements.
(B)
High explosives shall not be stored unattended outdoors, or in any building or structure, except in
a Type 1 or Type 2 magazine.
(C)
Detonators that will not mass detonate (1.4s and 1.4b classification) and are in the original and
closed shipping container may also be stored in a Type 4 magazine.
(D)
The requirements for the storage of binary explosives shall be:
(1)
Storage of the flammable liquid component of a binary explosive shall be in secure
storage that complies with the uniform fire code.
(2)
Storage of the powder component of a binary explosive shall be in secure storage.
(3)
Liquid and powder components shall not be stored together.
(E)
Detonators shall not be stored in the same magazine in which other explosives are kept or stored
except under the following circumstances:
(1)
In a Type 1 or Type 2 magazine, detonators may be stored with delay devices, electric
squibs, safety fuse, igniters, and igniter cord.
(2)
In a Type 4 magazine, detonators that will not mass detonate (1.4s and 1.4b
classification) may be stored with electric squibs, safety fuse, igniters, and igniter cord.
(F)
Inventory and Responsibility
(1)
Magazines shall be in the charge of a valid permittee at all times who shall be held
responsible for the enforcement of all safety precautions.
(2)
All explosives shall be accounted for at all times.

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25
(3)
Explosives not being used shall be kept in a locked magazine and the keys or
combinations to the locks shall be unavailable to persons not holding a valid Type I
permit.
(4)
The Type II permittee shall maintain an inventory and use record of all explosive
materials.
(5)
Type I permittees shall record any receipt, removal, or return of explosives materials on
inventory records within the magazine or at one central location on the business
premises provided that transactions for each magazine are kept separate.
available to persons not holding a valid Type I
permit.
(4)
The Type II permittee shall maintain an inventory and use record of all explosive
materials.
(5)
Type I permittees shall record any receipt, removal, or return of explosives materials on
inventory records within the magazine or at one central location on the business
premises provided that transactions for each magazine are kept separate.
(6)
The inventory records shall be maintained on forms approved by the Division and shall
include:
(i)
Type of explosive material product
(ii)
Manufacturer’s name or brand name
(iii)
Identifying or date shift code
(iv)
Amounts received, removed from or returned to the magazine
(v)
The signature of the permittee receiving, removing or returning explosive
materials
(vi)
Total quantity remaining on hand
(7)
Explosive materials shall be physically counted at least monthly.
(8)
Explosive materials sold and received in individual unit quantities shall be inventoried as
individual units.
(9)
Explosive materials sold and received as pounds shall be inventoried as pounds when in
unopened cases, and as individual cartridges or units when in opened cases.
(10)
The Federal Bureau of Alcohol, Tobacco, Firearms and Explosives, the Division, and
local law enforcement agencies shall be notified immediately of any loss, theft, or
unauthorized entry into a magazine.
(G)
Surrounding Area
(1)
The land surrounding a magazine shall be kept clear of trash, dried grass, leaves or trees
(except for live trees more than 10 feet tall) for a distance of at least 25 feet. Living
foliage used to stabilize the earthen coverings of a magazine need not be removed.
(2)
Any other combustible materials shall not be stored within 50 feet of magazines.
(3)
Smoking, matches or an open flame shall not be permitted:
urrounding a magazine shall be kept clear of trash, dried grass, leaves or trees
(except for live trees more than 10 feet tall) for a distance of at least 25 feet. Living
foliage used to stabilize the earthen coverings of a magazine need not be removed.
(2)
Any other combustible materials shall not be stored within 50 feet of magazines.
(3)
Smoking, matches or an open flame shall not be permitted:
(i)
In any magazine;
(ii)
Within 50 feet of any outdoor magazine; or
(iii)
Within any room containing an indoor magazine.

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(4)
Firearms shall not be permitted inside of, or within 50 feet of magazines.
(5)
The premises on which all outdoor magazines are located shall be posted with signs with
the words “DANGER—KEEP OUT” in letters at least 3 inches high. Signs shall be posted
to warn any person approaching the magazine of the hazard, but shall be located so that
a bullet passing through the sign will not strike the magazines.
(6)
All normal access routes to outdoor explosives storage sites shall be posted with a sign
with the words “DANGER- NEVER FIGHT FIRES ON THIS SITE. CALL
_______________” in letters at least 2 inches high. An emergency contact number shall
be written on the sign.
(7)
Indoor magazines shall be visibly marked with the words “DANGER – KEEP FIRE
AWAY.”
(H)
Temporary storage at a site for blasting operations shall be located away from neighboring
inhabited buildings, railways, highways, and other magazines in accordance with the American
Table of Distances (see Section 4-5).
(I)
Storage Within Magazines
An emergency contact number shall
be written on the sign.
(7)
Indoor magazines shall be visibly marked with the words “DANGER – KEEP FIRE
AWAY.”
(H)
Temporary storage at a site for blasting operations shall be located away from neighboring
inhabited buildings, railways, highways, and other magazines in accordance with the American
Table of Distances (see Section 4-5).
(I)
Storage Within Magazines
(1)
Packages of explosive materials shall be laid flat with top side up. Corresponding grades
and brands shall be stored together in such a manner that brands and grade marks
show. All stocks shall be stored so as to be easily counted and checked. Packages of
explosives shall be stacked in a stable manner. When any kind of explosive is removed
from a magazine for use, the oldest of that particular kind shall always be taken first.
(2)
Packages of explosives requiring impact or potentially spark producing methods to open
or to close shall not be opened or closed in a magazine, nor within 50 feet of a magazine
or in close proximity to other explosive materials.
(3)
Tools used for opening packages of explosives shall be constructed of non-sparking
materials.
(4)
Opened packages of explosives shall be securely closed before being returned to a
magazine.
(5)
Magazines shall not be used for the storage of any metal tools nor any commodity except
explosives; however, this restriction shall not apply to the storage of blasting agents and
non-metal blasting supplies.
(6)
Magazine floors shall be regularly swept, kept clean, dry, and free of grit, paper, empty
used packages, and rubbish. Brooms and other cleaning utensils shall not have any
spark- producing metal parts. Sweepings from floors of magazines shall be properly
disposed of. Magazine floors stained with nitroglycerin shall be cleaned according to
instructions of the manufacturer.
al blasting supplies.
(6)
Magazine floors shall be regularly swept, kept clean, dry, and free of grit, paper, empty
used packages, and rubbish. Brooms and other cleaning utensils shall not have any
spark- producing metal parts. Sweepings from floors of magazines shall be properly
disposed of. Magazine floors stained with nitroglycerin shall be cleaned according to
instructions of the manufacturer.
(7)
When any explosive has deteriorated to an extent that it is in an unstable or dangerous
condition, or if nitroglycerin leaks from any explosives, then the person in possession of
such explosives shall immediately proceed to destroy such explosives in accordance with
the instructions of the manufacturer. Only Type I permittees experienced in the
destruction of explosive materials shall be allowed to do the work of destroying
explosives.

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(8)
When magazines need inside repairs, all explosives shall be removed and the floors
cleaned. In making outside repairs, if there is a possibility of causing sparks or fire the
explosives shall be removed from the magazine. Explosives removed from a magazine in
order for repair shall either be placed in another class appropriate magazine, or placed a
safe distance from the magazine where they shall be properly guarded and protected
until repairs have been completed, at which time they shall be returned to the magazine.
(9)
Explosive materials within a magazine are not to be placed against the interior walls and
must be stored so as not to interfere with ventilation when required.
(10)
Any person storing explosive materials shall open and inspect the magazine at least
every 7 days. This inspection need not be an inventory, but must be sufficient to
determine whether there has been unauthorized entry or attempted entry into the
magazine, or unauthorized removal of the contents.
ainst the interior walls and
must be stored so as not to interfere with ventilation when required.
(10)
Any person storing explosive materials shall open and inspect the magazine at least
every 7 days. This inspection need not be an inventory, but must be sufficient to
determine whether there has been unauthorized entry or attempted entry into the
magazine, or unauthorized removal of the contents.
(11)
Flammables, such as the liquid components of binary products, shall not be stored with
other explosives.
(J)
Lighting Within Magazines
(1)
Battery-activated safety lights or battery-activated safety lanterns may be used in
explosives storage magazines.
(2)
Electric lighting, including wiring and fixtures, used in any explosives storage magazine
must meet the standards prescribed by the National Electrical Code for the conditions
present in the magazine at any time. All electrical switches are to be located outside of
the magazine and also meet the standards prescribed by the National Electrical Code.
(3)
Light fixtures shall be enclosed to prevent sparks or hot metal from falling on the floor or
on materials stored in the magazine.
(4)
Interior magazine lights shall be turned off when the magazine is unattended.
(5)
Copies of invoices, work orders or similar documents which indicate that the lighting
complies with the National Electrical Code must be available for inspection by the
Division.
Section 4-2
Classes of Explosive Materials and Examples
For the purposes of this article, there are three classes of explosive materials. These classes, together
with the description of explosive materials comprising each class, are as follows:
(A)
High Explosives - Explosive materials which can be caused to detonate by means of a detonator
when unconfined. Examples include:
(1)
Dynamite and detonators;
(2)
Detonator-sensitive slurry/water gels and emulsions; and
(3)
Mixed binaries.
(B)
Low Explosives - Explosive materials which can be caused to deflagrate when confined.
Examples include:
materials comprising each class, are as follows:
(A)
High Explosives - Explosive materials which can be caused to detonate by means of a detonator
when unconfined. Examples include:
(1)
Dynamite and detonators;
(2)
Detonator-sensitive slurry/water gels and emulsions; and
(3)
Mixed binaries.
(B)
Low Explosives - Explosive materials which can be caused to deflagrate when confined.
Examples include:
(1)
Black powder;

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28
(2)
Pull wire igniters; and
(3)
Safety fuse.
(C)
Blasting Agents - Explosives materials consisting of fuel and oxidizer which cannot be detonated
by means of a number 8 test detonator when unconfined. Examples include:
(1)
Ammonium Nitrate/Fuel Oil mixture (ANFO); and
(2)
Non detonator-sensitive slurry/water gels and emulsion products.
Section 4-3
Summary of Storage Requirements

Table 4-3
Summary of Storage Requirements
Storage Type
Classes of Explosive Materials Which May Be Stored Therein
Type 1
(Permanent)
High Explosives, Low Explosives, Blasting Agents
Type 2
(Portable, Mobile or Fixed)
High Explosives, Low Explosives, Blasting Agents
Type 3
(“Day Box” for Temporary Storage)
High Explosives, Low Explosives, Blasting Agents
Type 4
(Portable, Mobile or Fixed)
Blasting Agents, Low Explosives,
Detonators (Original, Closed Cartons of 1.4b, 1.4c And 1.4s)
Type 5
(Portable, Mobile or Fixed)
Blasting Agents
Section 4-4
Storage Magazine Construction by Type

Table 4-4
Storage Magazine Construction By Type
Construction Features
Type 1
Type 2
Type 3
Type 4
Type 5
Permanent
X

X
X
Portable or Mobile

X
X
X
X
Bullet-Resistant
X
X

Fire-Resistant
X
X
X
X
X (1)
Theft- Resistant
X
X
X
X
X
Weather- Resistant
X
X
X
X
X
Ventilated
X
X

X
of 1.4b, 1.4c And 1.4s)
Type 5
(Portable, Mobile or Fixed)
Blasting Agents
Section 4-4
Storage Magazine Construction by Type

Table 4-4
Storage Magazine Construction By Type
Construction Features
Type 1
Type 2
Type 3
Type 4
Type 5
Permanent
X

X
X
Portable or Mobile

X
X
X
X
Bullet-Resistant
X
X

Fire-Resistant
X
X
X
X
X (1)
Theft- Resistant
X
X
X
X
X
Weather- Resistant
X
X
X
X
X
Ventilated
X
X

X

(1)
Over the road trucks or semi-trailers used as Type 5 magazines for temporary storage need not
be fire resistant.
4-4-1
Type 1 Storage
A Type 1 magazine shall be a permanent structure, e.g., a building, an igloo or Army-type structure, a
tunnel, or a dugout. It shall be bullet-resistant, fire-resistant, weather-resistant, theft-resistant, and
ventilated.

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(A)
Buildings: All building-type magazines shall be constructed of masonry, wood, metal, or a
combination of these materials and shall have no openings except for entrances and ventilation.
The ground around building magazines shall slope away for drainage or other adequate drainage
shall be provided.
(B)
Masonry Wall Construction: Masonry wall construction shall consist of brick, concrete, tile,
cement block, or cinder block and shall be not less than 8 inches in thickness. Hollow masonry
units used in construction shall have all hollow spaces filled with well-tamped, coarse, dry sand or
weak concrete (at least 1 part cement + 8 parts of sand with enough water to dampen the mixture
while tamping in place). Interior walls shall be constructed of, or covered with, a non- sparking
material.
(C)
Fabricated Metal Wall Construction: Metal wall construction shall consist of sectional sheets of
steel or aluminum, not less than #14 gauge, securely fastened to a metal framework. Metal wall
construction shall be either lined inside with brick, solid cement blocks, hardwood not less than 4
inches thick, or shall have at least a 6-inch sand-fill between interior and exterior walls
ng
material.
(C)
Fabricated Metal Wall Construction: Metal wall construction shall consist of sectional sheets of
steel or aluminum, not less than #14 gauge, securely fastened to a metal framework. Metal wall
construction shall be either lined inside with brick, solid cement blocks, hardwood not less than 4
inches thick, or shall have at least a 6-inch sand-fill between interior and exterior walls. Interior
walls shall be constructed of, or covered with, a non-sparking material.
(D)
Wood Frame Wall Construction: The exterior of outer wood walls shall be covered with steel or
aluminum not less than #26 gauge. An inner wall of, or covered with, non-sparking material shall
be constructed so as to provide a space of not less than 6 inches between the outer and inner
walls. The space shall be filled with coarse, dry sand or weak concrete.
(E)
Floors: Floors shall be constructed of, or covered with, a non-sparking material and shall be
strong enough to bear the weight of the maximum quantity materials to be stored. Use of pallets
covered with a non-sparking material is considered equivalent to a floor constructed of, or
covered with, a non-sparking material.
(F)
Foundations: Foundations shall be constructed of brick, concrete, cement block, stone, or wood
posts. If piers or posts are used in lieu of a continuous foundation, the space under the buildings
shall be enclosed with metal.
(G)
Roof: Except for buildings with fabricated metal roofs, the outer roof shall be covered with no less
than #26 gauge steel or aluminum fastened to 7/8-inch sheathing.
(H)
Bullet-Resistant Ceilings on Roofs: Where it is possible for a bullet to be fired directly through the
roof and into the magazine at such an angle that the bullet would strike the explosives within, the
magazine shall be protected by one of following methods:
th fabricated metal roofs, the outer roof shall be covered with no less
than #26 gauge steel or aluminum fastened to 7/8-inch sheathing.
(H)
Bullet-Resistant Ceilings on Roofs: Where it is possible for a bullet to be fired directly through the
roof and into the magazine at such an angle that the bullet would strike the explosives within, the
magazine shall be protected by one of following methods:
(1)
A sand tray with a layer of building paper, plastic, or other nonporous material filled with
not less than 4 inches of coarse, dry sand, shall be located at the tops of inner walls
covering the entire ceiling area, except that portion necessary for ventilation.
(2)
A fabricated metal roof shall be constructed of 3/16-inch thick plate steel lined with 4
inches of hardwood. For each additional 1/16-inch of plate steel, the hardwood lining may
be decreased by 1 inch.
(I)
Doors: All doors shall be constructed of 1/4-inch plate steel and lined with 3 inches of hardwood.
Hinges and hasps shall be attached to the doors by welding, riveting, or bolting (with nuts on the
inside of the door). They shall be installed in such a manner that the hinges and hasps cannot be
removed when the doors are closed and locked.
(J)
Locks: Each door shall be equipped with at least one of the following types of locks:
(1)
Two mortise locks

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(2)
Two padlocks fastened in separate hasps and staples
(3)
A combination of a mortise lock and a padlock
(4)
A mortise lock that requires two keys to open
ot be
removed when the doors are closed and locked.
(J)
Locks: Each door shall be equipped with at least one of the following types of locks:
(1)
Two mortise locks

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(2)
Two padlocks fastened in separate hasps and staples
(3)
A combination of a mortise lock and a padlock
(4)
A mortise lock that requires two keys to open
(5)
A three-point lock.
Padlocks shall have at least 5 tumblers and a case-hardened shackle of at least 3/8-inch in
diameter. Padlocks shall be protected with 1/4-inch sheet hoods constructed so as to prevent
sawing or lever action on the locks, hasps, and staples. These requirements shall not apply to
magazine doors that are adequately secured on the inside by means of a bolt, lock, or bar that
cannot be actuated from the outside.
(K)
Ventilation: Ventilation shall be provided to prevent dampness and heating of stored explosive
materials. Ventilation openings shall be screened to prevent the entrance of sparks. Ventilation
openings in sidewalls and foundations shall be offset or shielded for bullet-resistance purposes.
Magazines having foundation and roof ventilators with the air circulating between the side walls
and the floors and between the side walls and the ceiling shall have a wooden lattice lining or
equivalent to prevent the packages of explosive materials from being stacked against the side
walls and blocking the air circulation.
(L)
Exposed Metal: No sparking material shall be exposed to contact with the stored explosive
materials. All ferrous metal nails in the floor and sidewalls which might be exposed to contact with
explosive materials shall be blind-nailed, countersunk, or covered with a non-sparking latticework
or other non-sparking material.
(M)
Igloos, Army-Type Structures, Tunnels, & Dugouts: Igloo, army-type structure, tunnel, and dugout
magazines shall be constructed of reinforced concrete, masonry, metal, or a combination of these
materials
he floor and sidewalls which might be exposed to contact with
explosive materials shall be blind-nailed, countersunk, or covered with a non-sparking latticework
or other non-sparking material.
(M)
Igloos, Army-Type Structures, Tunnels, & Dugouts: Igloo, army-type structure, tunnel, and dugout
magazines shall be constructed of reinforced concrete, masonry, metal, or a combination of these
materials. They shall have an earth mound covering of not less than 24 inches on the top, sides,
and rear unless the ceiling or roof meets the bullet-resistant ceiling or roof requirements of this
section. Interior walls shall be constructed of, or covered with, a non-sparking material.
Magazines of this type shall also be constructed in conformity with the requirements of the floors,
doors, locks, ventilation, and exposed metal portions outlined in this section.
4-4-2
Type 2 Storage
A Type 2 magazine shall be a portable or mobile structure such as a box, skid-magazine, trailer, or semi-
trailer.
4-4-2-1 Outdoor Type 2 Magazines
Outdoor Type 2 magazines shall be bullet-resistant, fire-resistant, weather-resistant, theft-resistant, and
ventilated. They shall be supported to prevent direct contact with the ground and, if less than 1 cubic yard
in size, shall be securely fastened to a fixed object. The ground around outdoor magazines shall slope
away for drainage or other adequate drainage shall be provided. When unattended, vehicular magazines
shall have wheels removed or shall otherwise be effectively immobilized by methods approved by the
Division.
(A)
Exterior Construction: The exterior and covers or doors shall be constructed of 1/4-inch steel and
shall be lined with 2 inches of hardwood. Magazines with top openings shall have lids with water-
resistant seals or which overlap the sides by at least 1 inch when in a closed position.

CODE OF COLORADO REGULATIONS
7 CCR 1101-9
Division of Oil and Public Safety
methods approved by the
Division.
(A)
Exterior Construction: The exterior and covers or doors shall be constructed of 1/4-inch steel and
shall be lined with 2 inches of hardwood. Magazines with top openings shall have lids with water-
resistant seals or which overlap the sides by at least 1 inch when in a closed position.

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31
(B)
Hinges & Hasps: Hinges and hasps shall be attached to the covers or doors by welding, riveting,
or bolting (with nuts on the inside of the door). Hinges and hasps shall be installed so that they
cannot be removed when the doors are closed and locked.
(C)
Locks: Each door shall be equipped with at least one of the following types of locks:
(1)
Two mortise locks
(2)
Two padlocks fastened in separate hasps and staples
(3)
A combination of a mortise lock and a padlock
(4)
A mortise lock that requires two keys to open
(5)
A three-point lock.
Padlocks shall have at least 5 tumblers and a case-hardened shackle of at least 3/8-inch
diameter. Padlocks shall be protected with 1/4-inch steel hoods constructed so as to prevent
sawing or lever action on the locks, hasps, and staples. These requirements do not apply to
magazine doors that are adequately secured on the inside by means of a bolt, lock, or bar that
cannot be actuated from the outside.
(D)
Ventilation: Ventilation shall be provided to prevent dampness and heating of stored explosive
materials. Ventilation openings shall be screened to prevent the entrance of sparks. Ventilation
openings in sidewalls shall be offset or shielded for bullet-resistance purposes. Packages of
explosive materials shall not be stacked against the side walls and block the air circulation.
4-4-2-2 Indoor Type 2 Magazines
Indoor Type 2 magazines shall be fire-resistant and theft-resistant if the buildings in which they are stored
provide protection from the weather and from bullet penetration. No indoor magazine may be located in a
residence or dwelling
llet-resistance purposes. Packages of
explosive materials shall not be stacked against the side walls and block the air circulation.
4-4-2-2 Indoor Type 2 Magazines
Indoor Type 2 magazines shall be fire-resistant and theft-resistant if the buildings in which they are stored
provide protection from the weather and from bullet penetration. No indoor magazine may be located in a
residence or dwelling. The indoor storage of high explosives may not exceed a quantity of 50 pounds.
More than one indoor magazine may be located in the same building if the total quantity of all explosive
materials stored does not exceed 50 pounds. Detonators shall be stored in separate magazines.
(A)
Exterior Construction: Indoor magazines shall be constructed of wood or metal according to one
of the following specifications:
(1)
Indoor magazines constructed of wood shall have sides, bottoms, and lids or doors
constructed of two-inch wood and shall be well-braced at the corners. The magazines
shall be covered on the exterior with sheet metal of not less than #26-gauge. Nails
exposed to the interior of magazines shall be countersunk.
(2)
Indoor magazines constructed of metal shall have sides, bottom, and lids or doors
constructed of at least #12-gauge metal and shall be lined inside with a non-sparking
material. Edges of metal covers shall overlap sides at least 1 inch.
(B)
Hinges & Hasps: Hinges and hasps shall be attached to the covers or doors by welding, riveting,
or bolting (with nuts on the inside of the door). Hinges and hasps shall be installed so that they
cannot be removed when the doors are closed and locked.
(C)
Locks: Each door shall be equipped with at least one of the following types of locks:
(1)
Two mortise locks

CODE OF COLORADO REGULATIONS
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32
(2)
Two padlocks fastened in separate hasps and staples
(3)
A combination of a mortise lock and a padlock
(4)
A mortise lock that requires two keys to open
ot be removed when the doors are closed and locked.
(C)
Locks: Each door shall be equipped with at least one of the following types of locks:
(1)
Two mortise locks

CODE OF COLORADO REGULATIONS
7 CCR 1101-9
Division of Oil and Public Safety

32
(2)
Two padlocks fastened in separate hasps and staples
(3)
A combination of a mortise lock and a padlock
(4)
A mortise lock that requires two keys to open
(5)
A three-point lock.
Padlocks shall have at least 5 tumblers and a case-hardened shackle of at least 3/8-inch
diameter. Padlocks shall be protected with 1/4-inch steel hoods constructed so as to prevent
sawing or lever action on the locks, hasps, and staples. Indoor magazines located in secure
rooms, that are locked as provided in this paragraph, may have each door or opening locked with
1 steel padlock (which need not be protected by a steel hood) having at least 5 tumblers and a
case-hardened shackle of at least 3/8-inch diameter, if the lock hinges and hasps are securely
fastened to the magazine and to the door frame. These requirements do not apply to magazine
doors that are adequately secured on the inside by means of a bolt, lock, or bar that cannot be
actuated from the outside.
4-4-3
Alternate Construction Standards for Storage Facilities
It has been determined that a wide range of construction criteria meet the bullet-resistant requirements of
ATF Rule 76-18 as published in Bureau Of Alcohol, Tobacco, Firearms, and Explosives, Department Of
The Treasury, Publication ATF p 5400.7 (2012) for the construction of storage facilities for explosive
materials.
In order to promote standards of safety and security in the storage of explosive materials while allowing
the industry a wide latitude in the selection of construction materials, it is held that storage facilities
(magazines) that are constructed according to the following minimum specifications are bullet-resistant
and meet the requirements of the regulations as set forth in 27 CFR Part 55 (all steel and wood
dimensions are actual thicknesses
urity in the storage of explosive materials while allowing
the industry a wide latitude in the selection of construction materials, it is held that storage facilities
(magazines) that are constructed according to the following minimum specifications are bullet-resistant
and meet the requirements of the regulations as set forth in 27 CFR Part 55 (all steel and wood
dimensions are actual thicknesses. To meet the concrete block and brick dimensions indicated, the
manufacturers’ represented thicknesses may be used).
(A)
Exterior of 5/8-inch steel, lined with an interior of any type of non-sparking material.
(B)
Exterior of 1/2-inch steel, lined with an interior of not less than 3/8-inch plywood.
(C)
Exterior of 3/8-inch steel, lined with an interior of 2 inches of hardwood.
(D)
Exterior of 3/8-inch steel, lined with an interior of 3 inches of softwood or 2¼ inches of plywood.
(E)
Exterior of 1/4-inch steel, lined with an interior of 3 inches of hardwood.
(F)
Exterior of 1/4-inch steel, lined with an interior of 5 inches of softwood or 5¼ inches of plywood.
(G)
Exterior of 1/4-inch steel, lined with an intermediate layer of 2 inches of hardwood and an interior
lining of 1½ inches of plywood.
(H)
Exterior of 3/16-inch steel, lined with an interior of 4 inches of hardwood.
(I)
Exterior of 3/16-inch steel, lined with an interior of 7 inches of softwood or 6¾ inches of plywood.
(J)
Exterior of 3/16-inch steel, lined with an intermediate layer of 3 inches of hardwood and an
interior lining of 3/4-inch of plywood.
(K)
Exterior of 1/8-inch steel, lined with an interior of 5 inches of hardwood.

CODE OF COLORADO REGULATIONS
7 CCR 1101-9
Division of Oil and Public Safety
.
(I)
Exterior of 3/16-inch steel, lined with an interior of 7 inches of softwood or 6¾ inches of plywood.
(J)
Exterior of 3/16-inch steel, lined with an intermediate layer of 3 inches of hardwood and an
interior lining of 3/4-inch of plywood.
(K)
Exterior of 1/8-inch steel, lined with an interior of 5 inches of hardwood.

CODE OF COLORADO REGULATIONS
7 CCR 1101-9
Division of Oil and Public Safety

33
(L)
Exterior of 1/8-inch steel, lined with an interior of 9 inches of softwood.
(M)
Exterior of 1/8-inch steel, lined with an intermediate layer of 4 inches of hardwood and an interior
lining of 3/4-inch plywood.
(N)
Exterior of any type of fire-resistant material which is structurally sound, lined with an intermediate
layer of 4 inches of solid concrete block, or 4 inches of solid brick or 4 inches of solid concrete;
and, an interior lining of 1/2-inch plywood placed securely against the masonry lining.
(O)
Standard 8-inch concrete block with voids filled with well-tamped sand/cement mixture.
(P)
Standard 8-inch solid brick.
(Q)
Exterior of any type of fire-resistant material which is structurally sound, lined with an intermediate
6-inch space filled with well-tamped dry sand or well-tamped sand/cement mixture.
(R)
Exterior of 1/8-inch steel, lined with a first intermediate layer of 3/4-inch plywood, a second
intermediate layer of 3⅝ inches of well-tamped dry sand or sand/cement mixture and an interior
lining of 3/4-inch plywood.
(S)
Second intermediate layer of 3⅝ inches well tamped dry sand or sand/cement mixture, a third
intermediate layer of 3/4-inch plywood, and a fourth intermediate layer of two inches of hardwood
or #14 gauge steel and an interior lining of 3/4-inch plywood.
(T)
8-inch thick solid concrete.
4-4-4
Type 3 Storage
A Type 3 magazine shall be a “day-box” or other portable magazine. It shall be fire-resistant, weather-
resistant, and theft-resistant. A Type 3 magazine shall be constructed of #12-gauge metal lined with
either 1/2-inch plywood or 1/2-inch Masonite-type hardboard
inches of hardwood
or #14 gauge steel and an interior lining of 3/4-inch plywood.
(T)
8-inch thick solid concrete.
4-4-4
Type 3 Storage
A Type 3 magazine shall be a “day-box” or other portable magazine. It shall be fire-resistant, weather-
resistant, and theft-resistant. A Type 3 magazine shall be constructed of #12-gauge metal lined with
either 1/2-inch plywood or 1/2-inch Masonite-type hardboard. Doors shall overlap sides by at least 1 inch.
Hinges and hasps shall be attached by welding, riveting or bolting (with nuts on the inside of the door). A
single lock having at least 5 tumblers and a case-hardened shackle of at least 3/8-inch diameter shall be
sufficient for locking purposes. Explosive materials may not be left unattended in Type 3 magazines, but
must be removed to either a Type 1 or 2 magazine for unattended storage.
4-4-5
Type 4 Storage
A Type 4 magazine shall be a building, igloo or army-type structure, tunnel, dugout, box, trailer, or a semi-
trailer or other mobile magazine.
4-4-5-1 Outdoor Type 4 Magazines
Outdoor Type 4 magazines shall be fire-resistant, weather-resistant, theft-resistant, ventilated and shall
be at least 1 cubic yard in size, or securely fasted to a fixed

[Text truncated at 120,000 characters. The full text is on the page linked above.]

## Nearby sections

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- [7 CCR 1101-15 LIQUEFIED PETROLEUM GAS (LPG) REGULATIONS](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_7_CCR_1101_15.md)
- [7 CCR 1101-16 RETAIL NATURAL GAS (CNG/LNG) REGULATIONS](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_7_CCR_1101_16.md)
- [7 CCR 1101-17 RETAIL HYDROGEN FUELING REGULATIONS](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_7_CCR_1101_17.md)
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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_7_CCR_1101_9. Check the current official text before relying on it. Not legal advice.