Billing Code - PHMSA - Department of Transportation

vapor or gas, the immediate vicinity of the cargo transport unit is clear of any source of
ignition, and the goods have been unloaded.
PHMSA received one comment from IVODGA requesting a further exception for
shipments that do not meet the ventilation requirements or the packaging requirements of
the proposed section. IVODGA asked PHMSA to allow freight containers or transport
vehicles containing these shipments not meeting the conditions of the proposed 176.907 to
be allowed to be transported on vessel using on-deck stowage and stowed away from
sources of potential ignition. PHMSA does not see a need to allow for less protective
stowage provisions than the IMDG Code provides for these commodities. While the
suggested stowage location and provisions proposed by IVODGA do represent a certain
degree of caution; the adopted and harmonized requirements provide additional protection
from the potential offgassing of pentane from these commodities; and thus PHMSA is
adopting the changes as proposed in the NPRM.
Part 178
Section 178.71
Section 178.71 prescribes specifications for UN pressure receptacles. In this final
rule PHMSA is incorporating by reference ISO 13340:2001(E) Transportable gas
cylinders—Cylinder valves for non-refillable cylinders—Specification and prototype
testing, First edition, 2004-04-01. Non-refillable pressure receptacles must comply with
cylinder valve requirements from ISO 13340. ISO 13340 was incorrectly proposed for
addition to § 178.274(i) in the NPRM. PHMSA is correcting this proposal by
incorporating this standard into the correct sections and requiring non-refillable pressure
receptacles to comply with cylinder valve requirements in ISO 13340.
120