49 CFR 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—
(i) The tank car must be marked on each side and each end as required by § 172.302 with the identification number specified for the material in the § 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 § 172.101 table, or with a common name authorized for the material in this subchapter (e.g., “Refrigerant Gas”):
Ammonia, anhydrous, liquefied
Ammonia solutions (more than 50% ammonia)
Bromine or Bromine solutions
Dispersant gas or Refrigerant gas (as defined in § 173.115 of this subchapter)
Division 2.1 materials
Division 2.2 materials (in Class DOT 107 tank cars only)
Division 2.3 materials
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, 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
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 § 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 § 172.101 table, unless marked in accordance with §§ 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 § 172.332, with the identification number specified for the material in the § 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.
Title 49 published on 2014-10-01
no entries appear in the Federal Register after this date.