[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: 49CFR180.511]



[Page 1128-1129]

 

                        TITLE 49--TRANSPORTATION

 

   CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, 

                      DEPARTMENT OF TRANSPORTATION

 

PART 180_CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS

--Table of Contents

 

          Subpart F_Qualification and Maintenance of Tank Cars

 

Sec. 180.511  Acceptable results of inspections and tests.



    Provided it conforms with other applicable requirements of this 

subchapter, a tank car is qualified for use if it successfully passes 

the following inspections and tests conducted in accordance with this 

subpart:

    (a) Visual inspection. A tank car successfully passes the visual 

inspection when the inspection shows no structural defect that may cause 

leakage from or failure of the tank before the next inspection and test 

interval.

    (b) Structural integrity inspection and test. A tank car 

successfully passes the structural integrity inspection and test when it 

shows no structural defect that may initiate cracks or propagate cracks 

and cause failure of the tank before the next inspection and test 

interval.

    (c) Service life shell thickness. A tank car successfully passes the 

service life shell thickness inspection when the tank shell and heads 

show no thickness reduction below that allowed in Sec. 180.509(g).

    (d) Safety system inspection. A tank car successfully passes the 

safety system inspection when each thermal protection system, tank head 

puncture resistance system, coupler vertical restraint system, and 

system used to protect discontinuities (e.g., breakage grooves on bottom 

outlets and protective housings) on the tank car conform to this 

subchapter.

    (e) Lining and coating inspection. A tank car successfully passes 

the lining and coating inspection and test when the lining or coating 

conforms to the owner's acceptance criteria.

    (f) Leakage pressure test. A tank car successfully passes the 

leakage pressure test when all product piping, fittings and closures 

show no indication of leakage.

    (g) Hydrostatic test. A Class 107 tank car or a riveted tank car 

successfully passes the hydrostatic test when it



[[Page 1129]]



shows no leakage, distortion, excessive permanent expansion, or other 

evidence of weakness that might render the tank car unsafe for 

transportation service.



[Amdt. 180-8, 60 FR 49079, Sept. 21, 1995, as amended by Amdt. 179-50, 

61 FR 33256, June 26, 1996; 66 FR 45187, Aug. 28, 2001]