landing, however, cargo may be initially subject to forward movement during descent, rearward
movement during the landing roll, and a sudden forward movement again as the brakes are
applied. For these and other reasons, many military supplies are classified as restricted cargoes
for air transport purposes, and Federal and DoD restrictions are imposed upon them. Strong
magnetic materials, for example, are legally restricted because a sufficiently strong magnetic
field strength could cause false readings on the compass sensing devices of the aircraft.
6.24 Installation Loading Responsibilities
A. In view of the transportation environments described in the preceding paragraphs, it should
be obvious that hazardous materials must be loaded to withstand the normal hazards of
transportation. Installations and all other shippers are required to load freight carried at carload
rates, unless otherwise required by tariff. They are also required to load heavy or bulky freight
that is carried as LCL rates, but that cannot be handled at stations where the carrier's facilities are
not sufficient for handling. In addition, installations must observe the rules of both the carrier
and Title 49 CFR for safe loading of material and protection of equipment.
B. In addition to selecting the proper type of conveyance, the following precautions shall be
taken to preclude the use of defective or unclean conveyances.
1. The interior of the vehicle or conveyance should be examined for evidence of defective
sides, roof, or floor that might cause snagging, tearing, scarring, or rupture of the container, or
permit entry of rain, dirt, or other matter likely to damage the cargo.
2. Protruding nails or other obstructions not part of the conveyance should be removed.
3. Weather seals of doors should be inspected for damage or distortion.
4. The doors should be checked for evidence of loose, worn, or damaged hinges, latches,
levers, bolts, nuts, and pins.
5. The general condition of mechanical bracing systems should be determined by inspection.
All crossmembers should be present, and bolt rails should be inspected to ensure that they are
firmly attached to sidewalls.
6. The above are not intended to serve as a comprehensive checklist of inspection items, since
items to be inspected will vary by conveyance type. The important point is that hazardous
materials should not be loaded in vehicles or containers that are clearly not suitable for this
purpose. Conveyances that cannot be suitably conditioned for the transportation of hazardous
materials, without mechanical or extensive repairs, will be rejected by the installation.
C. The Defense Transportation Regulation, DoD 4500.9-R, Part ii, Cargo Movement, requires
that all motor vehicles (commercial or government/MOV) used for the transportation of
ammunition, explosives, poisons, and the high-hazard items listed in table 1, section 172.504,
Title 49 CFR, be inspected by the shipping activity. DD Form 626, Motor Vehicle Inspection
(Transporting Hazardous Material) will be used for this purpose. Vehicles for which
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