[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR174.204]

[Page 657-658]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 174_CARRIAGE BY RAIL--Table of Contents
 
      Subpart F_Detailed Requirements for Class 2 (Gases) Materials
 
Sec.  174.204  Tank car delivery of gases, including cryogenic liquids.

    (a) A tank car containing Class 2 (gases) material may not be 
unloaded

[[Page 658]]

unless it is consigned for delivery and unloaded on a private track (see 
Sec.  171.8 of this subchapter). However, if a private track is not 
available, it may be delivered and unloaded on carrier tracks subject to 
the following conditions:
    (1) A tank car of DOT-106A or 110A type (Sec.  179.300 or Sec.  
179.301 of this subchapter) may not be delivered and the loaded unit 
tanks may not be removed from the car frame on carrier tracks. However, 
a carrier may give permission for the unloading of these containers on 
carrier tracks only if a private siding is not available within a 
reasonable trucking distance of the final destination. In addition, 
before the car is accepted for transportation, the shipper must obtain 
from the delivering carrier and file with the originating carrier, 
written permission for the removal and the consignee must furnish an 
adequately strong mechanical hoist by which the tanks can be lifted from 
the car and deposited directly upon vehicles furnished by the consignee 
for immediate removal from carrier property.
    (2) The following tank cars may not be delivered and unloaded on 
carrier tracks unless the lading is piped directly from the car to 
permanent storage tanks of sufficient capacity to receive the entire 
contents of the car; however, such cars may be stored on a private track 
(see Sec.  171.8 of this subchapter) or on carrier tracks designated by 
the carrier for such storage:
    (i) A tank car containing Division 2.1 (flammable gas) material that 
is a cryogenic liquid; or
    (ii) A tank car, except for a DOT-106A or 110A multi-unit tank car 
tank (Sec.  179.300 or Sec.  179.301 of this subchapter), containing 
anhydrous ammonia; hydrogen chloride, refrigerated liquid; hydrocarbon 
gas, liquefied; or liquefied petroleum gas; and having interior pipes 
for liquid and gas discharge valves equipped with check valves.
    (b) [Reserved]

[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-32, 43 FR 48644, Oct. 19, 1978; 
Amdt. 174-43, 48 FR 27699, June 16, 1983; 48 FR 50440, 50441, Nov. 1, 
1983; Amdt. 174-68, 55 FR 52682, Dec. 21, 1990]