[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: 49CFR175.702]

[Page 702]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 175_CARRIAGE BY AIRCRAFT--Table of Contents
 
Subpart C_Specific Regulations Applicable According to Classification of 
                                Material
 
Sec. 175.702  Requirements for carriage of packages containing Class 7 
(radioactive) materials in a cargo aircraft only.

    (a) As used in this section, the term ``group of packages'' means 
packages that are separated from each other in an aircraft by a distance 
of 6 m (20 feet) or less.
    (b) No person may transport in a cargo aircraft only any package 
required by Sec. 172.403 of this subchapter to be labeled RADIOACTIVE 
YELLOW-II or RADIOACTIVE YELLOW-III or FISSILE unless:
    (1) The total transport index for all of the packages does not 
exceed 50.0, the total criticality safety index for all of the packages 
does not exceed 50.0, and the package is carried in accordance with 
Sec. 175.701(a); or
    (2) The total transport index for all of the packages is greater 
than 50.0 but does not exceed 200.0, the total criticality safety index 
for all of the packages does not exceed 100.0. Any package, overpack or 
consignment having a criticality safety index greater than 50 must be 
transported under exclusive use; and:
    (i) The transport index for any group of packages does not exceed 
50.0;
    (ii) Each group of packages is separated from every other group in 
the aircraft by not less than 6 m (20 feet), measured from the outer 
surface of each group; and
    (iii) The separation distance between the surfaces of the Class 7 
(radioactive) materials packages, overpacks or freight containers and 
any space occupied by--
    (A) Humans is at least 9 m (30 feet); and
    (B) Live animals is at least 0.5 m (20 inches) for journeys not 
exceeding 24 hours and at least 1.0 m (39 inches) for journeys longer 
than 24 hours.

[Amdt. 175-13, 45 FR 20102, Mar. 27, 1980, as amended by Amdt. 175-29, 
48 FR 50461, Nov. 1, 1983; Amdt. 175-47, 55 FR 52687, Dec. 21, 1990; 
Amdt. 175-49, 58 FR 50494, Sept. 27, 1993; 66 FR 45383, Aug. 28, 2001; 
69 FR 3694, Jan. 26, 2004]