391 

Pipeline and Haz. Matls. Safety Admin., DOT 

§ 172.315 

(2) The square-on-point must be dura-

ble, legible and of a size relative to the 
package as to be readily visible. The 
square-on-point must be applied on at 
least one side or one end of the outer 
packaging. The width of the border 
forming the square-on-point must be at 
least 2 mm and the minimum dimen-
sion of each side, as measured from the 
outside of the lines forming the border, 
must be 100 mm unless the package size 
requires a reduced size marking that 
must be no less than 50 mm on each 
side and the width of the border form-
ing the square on point may be reduced 
to a minimum of 1 mm. Where dimen-
sions are not specified, all features 
shall be in approximate proportion to 
those shown. 

(i) 

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. 

(ii) 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. 

(c) Limited quantity markings pre-

scribed in paragraphs (a) and (b) of this 
section may use the packaging itself as 
the contrasting background for the 

center portion of the marking if the 
color sufficiently contrasts so that the 
black border, top and bottom portions 
of the square-on-point, and the ‘‘Y’’ 
symbol, if applicable, are clearly rec-
ognizable. 

(d) 

Transitional exceptions

—(1) 

Alter-

native markings. 

Except for transpor-

tation by aircraft and until December 
31, 2015, a package containing a limited 
quantity may continue to be marked in 
accordance with the requirements of 
this section in effect on October 1, 2010 
(i.e., square-on-point with identifica-
tion number only) as an alternative to 
the marking required by paragraph (a) 
of this section. 

(2) 

ORM–D marked packaging. 

Except 

for transportation by aircraft and until 
December 31, 2020, a packaging marked 
in accordance with § 172.316 of this part 
is not required to be marked with the 
limited quantity marking required by 
paragraph (a) of this section. For 
transportation by aircraft and until 
December 31, 2012, a packaging marked 
in accordance with § 172.316(a)(1) is not 
required to be marked with the limited 
quantity ‘‘Y’’ marking required by 
paragraph (b) of this section. 

[76 FR 82174, Dec. 30, 2011, as amended at 78 
FR 1073, Jan. 7, 2013; 78 FR 65478, Oct. 31, 2013; 
80 FR 1149, Jan. 8, 2015; 81 FR 3671, Jan. 21, 
2016] 

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