Billing Code - PHMSA - Department of Transportation

exception for goods of division 1.4, but sees no need to extend the exception beyond what
is authorized by the international standard.
This minimum distance for explosive shipment stowage from the ship’s side is
adopted to harmonize with a recent change in the IMDG Code and provides an increased
level of safety by ensuring explosive shipments are not stowed adjacent to the ships
internal structure.
Paragraph (f) previously indicated general stowage provisions for HMT explosive
entries stowed under deck and assigned stowage category 09 or 10. The removal of
stowage category 09 and 10 make these provisions no longer applicable.
Section 176.128
Section 176.128 defines the varying levels of containment for explosives identified
as magazine stowage types “A”, “C,” and “Special Stowage.” The IMO has determined
that a distinction between closed cargo transport units and magazines is no longer
necessary. PHMSA concurs with the IMO on this issue and is deleting § 176.128 and
reserving it for future use. With the addition of a definition for “closed cargo transport unit
for Class 1,” and the requirement for all explosive shipments to be stored at a distance at
least equal to one eighth of the beam of the vessel or 2.4 m (8 feet), whichever is less,
specific requirements for type A, C, and special magazine stowage are now unnecessary.
Note that portable magazines remain authorized by § 176.137 and the definition of “closed
cargo transport unit for Class 1.”
Section 176.130
Section 176.130 prescribes requirements for magazine stowage type A. The IMO
determined that a distinction between closed cargo transport units and magazines is no
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