[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR179.2]

[Page 1017-1018]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 179_SPECIFICATIONS FOR TANK CARS--Table of Contents
 
              Subpart A_Introduction, Approvals and Reports
 
Sec. 179.2  Definitions and abbreviations.

    (a) The following apply in part 179:
    (1) AAR means Association of American Railroads.
    (2) Approved means approval by the AAR Tank Car Committee.
    (3) ASTM means American Society for Testing and Materials.
    (4) [Reserved]
    (5) Definitions in part 173 of this chapter also apply.
    (6) F means degrees Fahrenheit.
    (7) NGT means National Gas Taper Threads.
    (8) NPT means an American Standard Taper Pipe Thread conforming to 
the requirements of NBS Handbook H-28 (IBR, see Sec. 171.7 of this 
subchapter).
    (9) [Reserved]
    (10) Tank car facility means an entity that manufactures, repairs, 
inspects, tests, qualifies, or maintains a tank car to ensure that the 
tank car conforms to this part and subpart F of part

[[Page 1018]]

180 of this subchapter, that alters the certificate of construction of 
the tank car, that ensures the continuing qualification of a tank car by 
performing a function prescribed in parts 179 or 180 of this subchapter, 
or that makes any representation indicating compliance with one or more 
of the requirements of parts 179 or 180 of this subchapter.
    (11) Tanks means tank car tanks.
    (b) [Reserved]

[29 FR 18995, Dec. 20, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21344, Nov. 6, 1971; Amdt. 179-50, 60 
FR 49076, Sept. 21, 1995; Amdt. 179-50, 61 FR 33255, June 26, 1996; 63 
FR 52850, Oct. 1, 1998; 66 FR 45186, 45390, Aug. 28, 2001; 68 FR 75759, 
Dec. 31, 2003]