Pipeline and Haz. Matls. Safety Admin., DOT
with the required identification numbers on placards, orange panels, or the
white square-on-point configuration, as
appropriate, for each side and each end
of the transport vehicle or freight container from which identification numbers on the portable tank are not visible.
(d) NON-ODORIZED marking on portable tanks containing LPG. No person
may offer for transportation or transport a portable tank containing
unodorized liquefied petroleum gas
(LPG) as authorized in Section 173.315(b)(1) of
this subchapter unless it is legibly
marked
NON-ODORIZED
or
NOT
ODORIZED on two opposing sides near
the marked proper shipping name required by paragraph (a) of this section,
or near the placards. The NON-ODORIZED or NOT ODORIZED marking may
appear on a portable tank used for both
unodorized and odorized LPG.
[Amdt. 172-123, 55 FR 52592, Dec. 21, 1990, as
amended at 56 FR 66255, Dec. 20, 1991; 69 FR
64471, Nov. 4, 2004; 76 FR 3367, Jan. 19, 2011; 80
FR 1150, Jan. 8, 2015; 81 FR 35540, June 2, 2016]

Section 172.327 Petroleum sour crude oil in
bulk packaging.
A Bulk packaging used to transport
petroleum crude oil containing hydrogen sulfide (i.e., sour crude oil) in sufficient
concentration
that
vapors
evolved from the crude oil may present

Section 172.327

an inhalation hazard must include a
marking, label, tag, or sign to warn of
the toxic hazard as follows:
(a) The marking must be durable,
legible and of a size relative to the
package as to be readily visible and
similar to the illustration shown in
this paragraph with the minimum dimension of each side of the marking at
least 100 mm (3.9 inches) as measured
from the outside of the lines forming
the border. The width of the border
forming the square-on-point marking
must be at least 5 mm. The marking
must be displayed at each location
(e.g., manhole, loading head) where exposure to hydrogen sulfide vapors may
occur.
(1) Transitional exception - A marking
in conformance with the requirements
of this paragraph in effect on December
31, 2014, may continue to be used until
December 31, 2016.
(2) For domestic transportation, a
packaging marked prior to January 1,
2017 and in conformance with the requirements of this paragraph in effect
on December 31, 2014, may continue in
service until the end of its useful life.
(b) The border of the square-on-point
must be black or red on a white or
other suitable contrasting background.
The symbol must be black and located
in the center of the square-on-point
and be clearly visible as follows:

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