[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: 49CFR177.854]

[Page 761-762]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 177_CARRIAGE BY PUBLIC HIGHWAY--Table of Contents
 
         Subpart D_Vehicles and Shipments in Transit; Accidents
 
Sec.  177.854  Disabled vehicles and broken or leaking packages; repairs.


    (a) Care of lading, hazardous materials. Whenever for any cause 
other than necessary traffic stops any motor vehicle transporting any 
hazardous material is stopped upon the traveled portion of any highway 
or shoulder thereof, special care shall be taken to guard the vehicle 
and its load or to take such steps as may be necessary to provide 
against hazard. Special effort shall be made to remove the motor vehicle 
to a place where the hazards of the materials being transported may be 
provided against. See Sec. Sec.  392.22, 392.24, and 392.25 of this 
title for warning devices required to be displayed on the highway.
    (b) Disposition of containers found broken or leaking in transit. 
When leaks occur in packages or containers during the course of 
transportation, subsequent to initial loading, disposition of such 
package or container shall be made by the safest practical means 
afforded under paragraphs (c), (d), and (e) of this section.
    (c) Repairing or overpacking packages. (1) Packages may be repaired 
when safe and practicable, such repairing to be in accordance with the 
best and safest practice known and available.
    (2) Packages of hazardous materials that are damaged or found 
leaking during transportation, and hazardous materials that have spilled 
or leaked during transportation, may be forwarded to destination or 
returned to the shipper in a salvage drum in accordance with the 
requirements of Sec.  173.3(c) of this subchapter.
    (d) Transportation of repaired packages. Any package repaired in 
accordance with the requirements of paragraph (c)(1) of this section may 
be transported to the nearest place at which it may safely be disposed 
of only in compliance with the following requirements:
    (1) The package must be safe for transportation.

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    (2) The repair of the package must be adequate to prevent 
contamination of or hazardous admixture with other lading transported on 
the same motor vehicle therewith.
    (3) If the carrier is not himself the shipper, the consignee's name 
and address must be plainly marked on the repaired package.
    (e) Disposition of unsafe broken packages. In the event any leaking 
package or container cannot be safely and adequately repaired for 
transportation or transported, it shall be stored pending proper 
disposition in the safest and most expeditious manner possible.
    (f) Stopped vehicles; other dangerous articles. Whenever any motor 
vehicle transporting Class 3 (flammable liquid), Class 4 (flammable 
solid), Class 5 (oxidizing), Class 8 (corrosive), Class 2 (gases), or 
Division 6.1 (poisonous) materials, is stopped for any cause other than 
necessary traffic stops upon the traveled portion of any highway, or a 
shoulder next thereto, the following requirements shall be complied with 
during the period of such stop:
    (1) For motor vehicles other than cargo tank motyor vehicles used 
for the transportation of Class 3 (flammable liquid) or Division 2.1 
(flammable gas) materials and not transporting Division 1.1, 1.2, or 1.3 
(explosive) materials, warning devices must be set out in the manner 
prescribed by Sec.  392.22 of this title.
    (2) For cargo tanks used for the transportation of Class 3 
(flammable liquid) or Division 2.1 (flammable gas) materials, whether 
loaded or empty, and vehicles transporting Division 1.1, 1.2, or 1.3 
(explosive) materials, warning devices must be set out in the manner 
prescribed by Sec.  392.25 of this title.
    (g) Repair and maintenance of vehicles containing certain hazardous 
materials--(1) General. No person may use heat, flame or spark producing 
devices to repair or maintain the cargo or fuel containment system of a 
motor vehicle required to be placarded, other than COMBUSTIBLE, in 
accordance with subpart F of part 172 of this subchapter. As used in 
this section, ``containment system'' includes all vehicle components 
intended physically to contain cargo or fuel during loading or filling, 
transport, or unloading.
    (2) Repair and maintenance inside a building. No person may perform 
repair or maintenance on a motor vehicle subject to paragraph (g)(1) of 
this section inside a building unless:
    (i) The motor vehicle's cargo and fuel containment systems are 
closed (except as necessary to maintain or repair the vehicle's motor) 
and do not show any indication of leakage;
    (ii) A means is provided, and a person capable to operate the motor 
vehicle is available, to immediately remove the motor vehicle if 
necessary in an emergency;
    (iii) The motor vehicle is removed from the enclosed area upon 
completion of repair or maintenance work; and
    (iv) For motor vehicles loaded with Division 1.1, 1.2, or 1.3 
(explosive), Class 3 (flammable liquid), or Division 2.1 (flammable gas) 
materials, all sources of spark, flame or glowing heat within the area 
of enclosure (including any heating system drawing air therefrom) are 
extinguished, made inoperable or rendered explosion-proof by a suitable 
method. Exception: Electrical equipment on the vehicle, necessary to 
accomplish the maintenance function, may remain operational.
    (h) No repair with flame unless gas-free. No repair of a cargo tank 
used for the transportation of any Class 3 (flammable liquid) or 
Division 6.1 (poisonous liquid) material, or any compartment thereof, or 
of any container for fuel of whatever nature, may be repaired by any 
method employing a flame, arc, or other means of welding, unless the 
tank or compartment shall first have been made gas-free.

[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting Sec.  
177.854, see the List of CFR Sections Affected which appears in the 
Finding Aids section of the printed volume and on GPO Access.

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