399 

Pipeline and Haz. Matls. Safety Admin., DOT 

§ 172.327 

with the required identification num-
bers 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 con-
tainer from which identification num-
bers on the portable tank are not visi-
ble. 

(d) 

NON-ODORIZED marking on port-

able tanks containing LPG. 

No person 

may offer for transportation or trans-
port a portable tank containing 
unodorized liquefied petroleum gas 
(LPG) as authorized in § 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 re-
quired by paragraph (a) of this section, 
or near the placards. The NON-ODOR-
IZED 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] 

§ 172.327

Petroleum sour crude oil in 

bulk packaging. 

A Bulk packaging used to transport 

petroleum crude oil containing hydro-
gen sulfide (

i.e., 

sour crude oil) in suffi-

cient concentration that vapors 
evolved from the crude oil may present 

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 di-
mension 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 ex-

posure 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 re-
quirements 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: 

VerDate Sep<11>2014 

16:41 Oct 31, 2018

Jkt 244226

PO 00000

Frm 00409

Fmt 8010

Sfmt 8010

Q:\49\49V2.TXT

PC31