[Code of Federal Regulations]

[Title 49, Volume 2]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR172.330]



[Page 368-369]

 

                        TITLE 49--TRANSPORTATION

 

   CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, 

                      DEPARTMENT OF TRANSPORTATION

 

PART 172_HAZARDOUS MATERIALS TABLE, SPECIAL PROVISIONS, HAZARDOUS 

MATERIALS COMMUNICATIONS, EMERGENCY RESPONSE INFORMATION, AND TRAINING 

REQUIREMENTS--Table of Contents

 

                            Subpart D_Marking

 

Sec. 172.330  Tank cars and multi-unit tank car tanks.



    (a) Shipping name and identification number. No person may offer for 

transportation or transport a hazardous material--

    (1) In a tank car unless the following conditions are met:



[[Page 369]]



    (i) The tank car must be marked on each side and each end as 

required by Sec. 172.302 with the identification number specified for 

the material in the Sec. 172.101 table; and

    (ii) A tank car containing any of the following materials must be 

marked on each side with the key words of the proper shipping name 

specified for the material in the Sec. 172.101 table, or with a common 

name authorized for the material in this subchapter (e.g., ``Refrigerant 

Gas''):



Acrolein, stabilized

Ammonia, anhydrous, liquefied

Ammonia solutions (more than 50% ammonia)

Bromine or Bromine solutions

Bromine chloride

Chloroprene, stabilized

Dispersant gas or Refrigerant gas (as defined in Sec. 173.115 of this 

subchapter)

Division 2.1 materials

Division 2.2 materials (in Class DOT 107 tank cars only)

Division 2.3 materials

Formic acid

Hydrocyanic acid, aqueous solutions

Hydrofluoric acid, solution

Hydrogen cyanide, stabilized (less than 3% water)

Hydrogen fluoride, anhydrous

Hydrogen peroxide, aqueous solutions (greater than 20% hydrogen 

peroxide)

Hydrogen peroxide, stabilized

Hydrogen peroxide and peroxyacetic acid mixtures

Nitric acid (other than red fuming)

Phosphorus, amorphous

Phosphorus, white dry or Phosphorus, white, under water or Phosphorus 

white, in solution, or Phosphorus, yellow dry or Phosphorus, yellow, 

under water or Phosphorus, yellow, in solution

Phosphorus white, molten

Potassium nitrate and sodium nitrate mixtures

Potassium permanganate

Sulfur trioxide, stabilized

Sulfur trioxide, uninhibited



    (2) In a multi-unit tank car tank, unless the tank is marked on two 

opposing sides, in letters and numerals no less than 50 mm (2.0 inches) 

high--

    (i) With the proper shipping name specified for the material in the 

Sec. 172.101 table or with a common name authorized for the material in 

this subchapter (e.g., ``Refrigerant Gas''); and

    (ii) With the identification number specified for the material in 

the Sec. 172.101 table, unless marked in accordance with Sec. Sec. 

172.302(a) and 172.332 of this subpart.

    (b) A motor vehicle or rail car used to transport a multi-unit tank 

car tank containing a hazardous material must be marked on each side and 

each end, as required by Sec. 172.332, with the identification number 

specified for the material in the Sec. 172.101 table.

    (c) After September 30, 2006, no person may offer for transportation 

or transport a tank car or multi-unit tank car tank containing liquefied 

petroleum gas (LPG) that is unodorized unless it is legibly marked NON-

ODORIZED or NOT ODORIZED on two opposing sides near the marked proper 

shipping name required by paragraphs (a)(1) and (a)(2) of this section, 

or near the placards. The NON-ODORIZED or NOT ODORIZED marking may 

appear on a tank car or multi-unit tank car tank used for both 

unodorized and odorized LPG.



[Amdt. 172-123, 55 FR 52593, Dec. 21, 1990, as amended at 56 FR 66255, 

Dec. 20, 1991; 57 FR 45458, Oct. 1, 1992; Amdt. 172-148, 61 FR 28676, 

June 5, 1996; Amdt. 172-148, 61 FR 50254, Sept. 25, 1996; 66 FR 33425, 

June 21, 2001; 69 FR 64471, Nov. 4, 2004]