"Includes" represents inclusion, not limitation.
These rules provide applicable definitions for interpreting CFR 49.
EXEMPTION POLICY
There may be situations in which you can find no rule for
containerization in CFR 49. In this event, you must refer to Subpart
B, Chapter 1, CFR 49.
This will give the information you need to
apply for certificates of equivalency (COEs).
Before using this
information, determine if a COE already exists for the particular
situation, and use the existing COE.
TRANSPORTATION MODES
This course deals primarily with hazardous materials handling on
vessels, motor vehicles traveling public highways, rail, and military
aircraft (during mobilization). The CFR 49 also addresses commercial
air.
(Should you be transporting nuclear weapons by rail, you will
also need to consult AR 50-5.)
HAZARDOUS MATERIALS CLASSES
To understand the references in CFR 49, you must know the Department
of Transportation (DOT) hazardous classes contained in Part 173 of
CFR 49. These nine classes include the following:
Class 1 includes explosives (any chemical compound, mixture, or
device, whose purpose is the substantially instantaneous
release of gas or heat).
Within Class 1 are three types of
explosives:
- "A" explosives are the most dangerous and explode with a
minimum or no motion applied (dynamite).
- "B" explosives function by rapid combustion rather than
detonation (propellant explosives, railway torpedoes).
- "C" explosives are minimally hazardous (toy caps).
Class 2 includes gases that
are
compressed,
liquefied,
or
dissolved under pressure.
Class 3 includes flammable liquids such as gasoline, acetone,
or benzine.
Class 4 includes flammable solids such as metallic calcium or
bulk cotton.
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