448 

49 CFR Ch. I (10–1–23 Edition) 

§ 172.550 

‘‘WHEN WET’’ must be at least 25 mm 
(1.0 inches) high. The symbol, text, 
class number and inner border must be 
white. 

[Amdt. 172–123, 56 FR 66263, Dec. 20, 1991] 

§ 172.550

OXIDIZER placard. 

(a) Except for size and color, the OXI-

DIZER placard must be as follows: 

(b) In addition to complying with 

§ 172.519, the background color on the 
OXIDIZER placard must be yellow. The 
symbol, text, division number and 
inner border must be black. 

[Amdt. 172–123, 56 FR 66263, Dec. 20, 1991] 

§ 172.552

ORGANIC PEROXIDE 

placard. 

(a) Except for size and color, the OR-

GANIC PEROXIDE placard must be as 
follows: 

449 

Pipeline and Haz. Matls. Safety Admin., DOT 

§ 172.554 

(b) In addition to complying with 

§ 172.519, the background on the OR-
GANIC PEROXIDE placard must be red 
in the top half and yellow in the lower 
half. The text, division number and 
inner border must be black; the symbol 
may be either black or white. 

(c) For transportation by highway, a 

Division 5.2 placard conforming to the 
specifications in this section in effect 

on December 31, 2006 may continue to 
be used until January 1, 2014. 

[71 FR 78628, Dec. 29, 2006, as amended at 76 
FR 43528, July 20, 2011] 

§ 172.553

[Reserved] 

§ 172.554

POISON placard. 

(a) Except for size and color, the POI-

SON placard must be as follows: